Merge pull request #45364 from madmiraal/rename-quat

Rename Quat to Quaternion

core/core_constants.cpp

@@ -580,7 +580,7 @@ void register_global_constants() {
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_VECTOR3I", Variant::VECTOR3I);
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_TRANSFORM2D", Variant::TRANSFORM2D);
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_PLANE", Variant::PLANE);
-	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_QUAT", Variant::QUAT);
+	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_QUATERNION", Variant::QUATERNION);
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_AABB", Variant::AABB);
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_BASIS", Variant::BASIS);
 	BIND_CORE_ENUM_CONSTANT_CUSTOM("TYPE_TRANSFORM3D", Variant::TRANSFORM3D);

core/io/marshalls.cpp

@@ -279,9 +279,9 @@ Error decode_variant(Variant &r_variant, const uint8_t *p_buffer, int p_len, int
 			}
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
 			ERR_FAIL_COND_V(len < 4 * 4, ERR_INVALID_DATA);
-			Quat val;
+			Quaternion val;
 			val.x = decode_float(&buf[0]);
 			val.y = decode_float(&buf[4]);
 			val.z = decode_float(&buf[8]);
@@ -1099,9 +1099,9 @@ Error encode_variant(const Variant &p_variant, uint8_t *r_buffer, int &r_len, bo
 			r_len += 4 * 4;
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
 			if (buf) {
-				Quat q = p_variant;
+				Quaternion q = p_variant;
 				encode_float(q.x, &buf[0]);
 				encode_float(q.y, &buf[4]);
 				encode_float(q.z, &buf[8]);

core/io/packed_data_container.cpp

@@ -227,7 +227,7 @@ uint32_t PackedDataContainer::_pack(const Variant &p_data, Vector<uint8_t> &tmpd
 		case Variant::VECTOR3:
 		case Variant::TRANSFORM2D:
 		case Variant::PLANE:
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 		case Variant::AABB:
 		case Variant::BASIS:
 		case Variant::TRANSFORM3D:

core/io/resource_format_binary.cpp

@@ -51,7 +51,7 @@ enum {
 	VARIANT_RECT2 = 11,
 	VARIANT_VECTOR3 = 12,
 	VARIANT_PLANE = 13,
-	VARIANT_QUAT = 14,
+	VARIANT_QUATERNION = 14,
 	VARIANT_AABB = 15,
 	VARIANT_MATRIX3 = 16,
 	VARIANT_TRANSFORM = 17,
@@ -199,8 +199,8 @@ Error ResourceLoaderBinary::parse_variant(Variant &r_v) {
 			v.d = f->get_real();
 			r_v = v;
 		} break;
-		case VARIANT_QUAT: {
+		case VARIANT_QUATERNION: {
-			Quat v;
+			Quaternion v;
 			v.x = f->get_real();
 			v.y = f->get_real();
 			v.z = f->get_real();
@@ -1371,9 +1371,9 @@ void ResourceFormatSaverBinaryInstance::write_variant(FileAccess *f, const Varia
 			f->store_real(val.d);
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			f->store_32(VARIANT_QUAT);
+			f->store_32(VARIANT_QUATERNION);
-			Quat val = p_property;
+			Quaternion val = p_property;
 			f->store_real(val.x);
 			f->store_real(val.y);
 			f->store_real(val.z);

core/math/basis.cpp

@@ -345,12 +345,12 @@ void Basis::rotate(const Vector3 &p_euler) {
 	*this = rotated(p_euler);
 }
 
-Basis Basis::rotated(const Quat &p_quat) const {
+Basis Basis::rotated(const Quaternion &p_quaternion) const {
-	return Basis(p_quat) * (*this);
+	return Basis(p_quaternion) * (*this);
 }
 
-void Basis::rotate(const Quat &p_quat) {
+void Basis::rotate(const Quaternion &p_quaternion) {
-	*this = rotated(p_quat);
+	*this = rotated(p_quaternion);
 }
 
 Vector3 Basis::get_rotation_euler() const {
@@ -367,7 +367,7 @@ Vector3 Basis::get_rotation_euler() const {
 	return m.get_euler();
 }
 
-Quat Basis::get_rotation_quat() const {
+Quaternion Basis::get_rotation_quaternion() const {
 	// Assumes that the matrix can be decomposed into a proper rotation and scaling matrix as M = R.S,
 	// and returns the Euler angles corresponding to the rotation part, complementing get_scale().
 	// See the comment in get_scale() for further information.
@@ -378,7 +378,7 @@ Quat Basis::get_rotation_quat() const {
 		m.scale(Vector3(-1, -1, -1));
 	}
 
-	return m.get_quat();
+	return m.get_quaternion();
 }
 
 void Basis::get_rotation_axis_angle(Vector3 &p_axis, real_t &p_angle) const {
@@ -770,9 +770,9 @@ Basis::operator String() const {
 	return mtx;
 }
 
-Quat Basis::get_quat() const {
+Quaternion Basis::get_quaternion() const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V_MSG(!is_rotation(), Quat(), "Basis must be normalized in order to be casted to a Quaternion. Use get_rotation_quat() or call orthonormalized() instead.");
+	ERR_FAIL_COND_V_MSG(!is_rotation(), Quaternion(), "Basis must be normalized in order to be casted to a Quaternion. Use get_rotation_quaternion() or call orthonormalized() instead.");
 #endif
 	/* Allow getting a quaternion from an unnormalized transform */
 	Basis m = *this;
@@ -803,7 +803,7 @@ Quat Basis::get_quat() const {
 		temp[k] = (m.elements[k][i] + m.elements[i][k]) * s;
 	}
 
-	return Quat(temp[0], temp[1], temp[2], temp[3]);
+	return Quaternion(temp[0], temp[1], temp[2], temp[3]);
 }
 
 static const Basis _ortho_bases[24] = {
@@ -945,13 +945,13 @@ void Basis::get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 	r_angle = angle;
 }
 
-void Basis::set_quat(const Quat &p_quat) {
+void Basis::set_quaternion(const Quaternion &p_quaternion) {
-	real_t d = p_quat.length_squared();
+	real_t d = p_quaternion.length_squared();
 	real_t s = 2.0 / d;
-	real_t xs = p_quat.x * s, ys = p_quat.y * s, zs = p_quat.z * s;
+	real_t xs = p_quaternion.x * s, ys = p_quaternion.y * s, zs = p_quaternion.z * s;
-	real_t wx = p_quat.w * xs, wy = p_quat.w * ys, wz = p_quat.w * zs;
+	real_t wx = p_quaternion.w * xs, wy = p_quaternion.w * ys, wz = p_quaternion.w * zs;
-	real_t xx = p_quat.x * xs, xy = p_quat.x * ys, xz = p_quat.x * zs;
+	real_t xx = p_quaternion.x * xs, xy = p_quaternion.x * ys, xz = p_quaternion.x * zs;
-	real_t yy = p_quat.y * ys, yz = p_quat.y * zs, zz = p_quat.z * zs;
+	real_t yy = p_quaternion.y * ys, yz = p_quaternion.y * zs, zz = p_quaternion.z * zs;
 	set(1.0 - (yy + zz), xy - wz, xz + wy,
 			xy + wz, 1.0 - (xx + zz), yz - wx,
 			xz - wy, yz + wx, 1.0 - (xx + yy));
@@ -997,9 +997,9 @@ void Basis::set_euler_scale(const Vector3 &p_euler, const Vector3 &p_scale) {
 	rotate(p_euler);
 }
 
-void Basis::set_quat_scale(const Quat &p_quat, const Vector3 &p_scale) {
+void Basis::set_quaternion_scale(const Quaternion &p_quaternion, const Vector3 &p_scale) {
 	set_diagonal(p_scale);
-	rotate(p_quat);
+	rotate(p_quaternion);
 }
 
 void Basis::set_diagonal(const Vector3 &p_diag) {
@@ -1018,8 +1018,8 @@ void Basis::set_diagonal(const Vector3 &p_diag) {
 
 Basis Basis::slerp(const Basis &p_to, const real_t &p_weight) const {
 	//consider scale
-	Quat from(*this);
+	Quaternion from(*this);
-	Quat to(p_to);
+	Quaternion to(p_to);
 
 	Basis b(from.slerp(to, p_weight));
 	b.elements[0] *= Math::lerp(elements[0].length(), p_to.elements[0].length(), p_weight);

core/math/basis.h

@@ -31,7 +31,7 @@
 #ifndef BASIS_H
 #define BASIS_H
 
-#include "core/math/quat.h"
+#include "core/math/quaternion.h"
 #include "core/math/vector3.h"
 
 class Basis {
@@ -79,13 +79,13 @@ public:
 	void rotate(const Vector3 &p_euler);
 	Basis rotated(const Vector3 &p_euler) const;
 
-	void rotate(const Quat &p_quat);
+	void rotate(const Quaternion &p_quaternion);
-	Basis rotated(const Quat &p_quat) const;
+	Basis rotated(const Quaternion &p_quaternion) const;
 
 	Vector3 get_rotation_euler() const;
 	void get_rotation_axis_angle(Vector3 &p_axis, real_t &p_angle) const;
 	void get_rotation_axis_angle_local(Vector3 &p_axis, real_t &p_angle) const;
-	Quat get_rotation_quat() const;
+	Quaternion get_rotation_quaternion() const;
 	Vector3 get_rotation() const { return get_rotation_euler(); };
 
 	Vector3 rotref_posscale_decomposition(Basis &rotref) const;
@@ -108,8 +108,8 @@ public:
 	Vector3 get_euler_zyx() const;
 	void set_euler_zyx(const Vector3 &p_euler);
 
-	Quat get_quat() const;
+	Quaternion get_quaternion() const;
-	void set_quat(const Quat &p_quat);
+	void set_quaternion(const Quaternion &p_quaternion);
 
 	Vector3 get_euler() const { return get_euler_yxz(); }
 	void set_euler(const Vector3 &p_euler) { set_euler_yxz(p_euler); }
@@ -132,7 +132,7 @@ public:
 
 	void set_axis_angle_scale(const Vector3 &p_axis, real_t p_phi, const Vector3 &p_scale);
 	void set_euler_scale(const Vector3 &p_euler, const Vector3 &p_scale);
-	void set_quat_scale(const Quat &p_quat, const Vector3 &p_scale);
+	void set_quaternion_scale(const Quaternion &p_quaternion, const Vector3 &p_scale);
 
 	// transposed dot products
 	_FORCE_INLINE_ real_t tdotx(const Vector3 &v) const {
@@ -240,10 +240,10 @@ public:
 #endif
 	Basis diagonalize();
 
-	operator Quat() const { return get_quat(); }
+	operator Quaternion() const { return get_quaternion(); }
 
-	Basis(const Quat &p_quat) { set_quat(p_quat); };
+	Basis(const Quaternion &p_quaternion) { set_quaternion(p_quaternion); };
-	Basis(const Quat &p_quat, const Vector3 &p_scale) { set_quat_scale(p_quat, p_scale); }
+	Basis(const Quaternion &p_quaternion, const Vector3 &p_scale) { set_quaternion_scale(p_quaternion, p_scale); }
 
 	Basis(const Vector3 &p_euler) { set_euler(p_euler); }
 	Basis(const Vector3 &p_euler, const Vector3 &p_scale) { set_euler_scale(p_euler, p_scale); }

core/math/math_fieldwise.cpp

@@ -88,8 +88,8 @@ Variant fieldwise_assign(const Variant &p_target, const Variant &p_source, const
 			return target;
 		}
 
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			SETUP_TYPE(Quat)
+			SETUP_TYPE(Quaternion)
 
 			/**/ TRY_TRANSFER_FIELD("x", x)
 			else TRY_TRANSFER_FIELD("y", y)

core/math/quaternion.cpp

@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  quat.cpp                                                             */
+/*  quaternion.cpp                                                       */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,7 +28,7 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#include "quat.h"
+#include "quaternion.h"
 
 #include "core/math/basis.h"
 #include "core/string/print_string.h"
@@ -37,7 +37,7 @@
 // (ax,ay,az), where ax is the angle of rotation around x axis,
 // and similar for other axes.
 // This implementation uses XYZ convention (Z is the first rotation).
-Vector3 Quat::get_euler_xyz() const {
+Vector3 Quaternion::get_euler_xyz() const {
 	Basis m(*this);
 	return m.get_euler_xyz();
 }
@@ -46,7 +46,7 @@ Vector3 Quat::get_euler_xyz() const {
 // (ax,ay,az), where ax is the angle of rotation around x axis,
 // and similar for other axes.
 // This implementation uses YXZ convention (Z is the first rotation).
-Vector3 Quat::get_euler_yxz() const {
+Vector3 Quaternion::get_euler_yxz() const {
 #ifdef MATH_CHECKS
 	ERR_FAIL_COND_V_MSG(!is_normalized(), Vector3(0, 0, 0), "The quaternion must be normalized.");
 #endif
@@ -54,7 +54,7 @@ Vector3 Quat::get_euler_yxz() const {
 	return m.get_euler_yxz();
 }
 
-void Quat::operator*=(const Quat &p_q) {
+void Quaternion::operator*=(const Quaternion &p_q) {
 	real_t xx = w * p_q.x + x * p_q.w + y * p_q.z - z * p_q.y;
 	real_t yy = w * p_q.y + y * p_q.w + z * p_q.x - x * p_q.z;
 	real_t zz = w * p_q.z + z * p_q.w + x * p_q.y - y * p_q.x;
@@ -64,45 +64,45 @@ void Quat::operator*=(const Quat &p_q) {
 	z = zz;
 }
 
-Quat Quat::operator*(const Quat &p_q) const {
+Quaternion Quaternion::operator*(const Quaternion &p_q) const {
-	Quat r = *this;
+	Quaternion r = *this;
 	r *= p_q;
 	return r;
 }
 
-bool Quat::is_equal_approx(const Quat &p_quat) const {
+bool Quaternion::is_equal_approx(const Quaternion &p_quaternion) const {
-	return Math::is_equal_approx(x, p_quat.x) && Math::is_equal_approx(y, p_quat.y) && Math::is_equal_approx(z, p_quat.z) && Math::is_equal_approx(w, p_quat.w);
+	return Math::is_equal_approx(x, p_quaternion.x) && Math::is_equal_approx(y, p_quaternion.y) && Math::is_equal_approx(z, p_quaternion.z) && Math::is_equal_approx(w, p_quaternion.w);
 }
 
-real_t Quat::length() const {
+real_t Quaternion::length() const {
 	return Math::sqrt(length_squared());
 }
 
-void Quat::normalize() {
+void Quaternion::normalize() {
 	*this /= length();
 }
 
-Quat Quat::normalized() const {
+Quaternion Quaternion::normalized() const {
 	return *this / length();
 }
 
-bool Quat::is_normalized() const {
+bool Quaternion::is_normalized() const {
 	return Math::is_equal_approx(length_squared(), 1, (real_t)UNIT_EPSILON); //use less epsilon
 }
 
-Quat Quat::inverse() const {
+Quaternion Quaternion::inverse() const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V_MSG(!is_normalized(), Quat(), "The quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!is_normalized(), Quaternion(), "The quaternion must be normalized.");
 #endif
-	return Quat(-x, -y, -z, w);
+	return Quaternion(-x, -y, -z, w);
 }
 
-Quat Quat::slerp(const Quat &p_to, const real_t &p_weight) const {
+Quaternion Quaternion::slerp(const Quaternion &p_to, const real_t &p_weight) const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V_MSG(!is_normalized(), Quat(), "The start quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!is_normalized(), Quaternion(), "The start quaternion must be normalized.");
-	ERR_FAIL_COND_V_MSG(!p_to.is_normalized(), Quat(), "The end quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!p_to.is_normalized(), Quaternion(), "The end quaternion must be normalized.");
 #endif
-	Quat to1;
+	Quaternion to1;
 	real_t omega, cosom, sinom, scale0, scale1;
 
 	// calc cosine
@@ -137,19 +137,19 @@ Quat Quat::slerp(const Quat &p_to, const real_t &p_weight) const {
 		scale1 = p_weight;
 	}
 	// calculate final values
-	return Quat(
+	return Quaternion(
 			scale0 * x + scale1 * to1.x,
 			scale0 * y + scale1 * to1.y,
 			scale0 * z + scale1 * to1.z,
 			scale0 * w + scale1 * to1.w);
 }
 
-Quat Quat::slerpni(const Quat &p_to, const real_t &p_weight) const {
+Quaternion Quaternion::slerpni(const Quaternion &p_to, const real_t &p_weight) const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V_MSG(!is_normalized(), Quat(), "The start quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!is_normalized(), Quaternion(), "The start quaternion must be normalized.");
-	ERR_FAIL_COND_V_MSG(!p_to.is_normalized(), Quat(), "The end quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!p_to.is_normalized(), Quaternion(), "The end quaternion must be normalized.");
 #endif
-	const Quat &from = *this;
+	const Quaternion &from = *this;
 
 	real_t dot = from.dot(p_to);
 
@@ -162,29 +162,29 @@ Quat Quat::slerpni(const Quat &p_to, const real_t &p_weight) const {
 		   newFactor = Math::sin(p_weight * theta) * sinT,
 		   invFactor = Math::sin((1.0 - p_weight) * theta) * sinT;
 
-	return Quat(invFactor * from.x + newFactor * p_to.x,
+	return Quaternion(invFactor * from.x + newFactor * p_to.x,
 			invFactor * from.y + newFactor * p_to.y,
 			invFactor * from.z + newFactor * p_to.z,
 			invFactor * from.w + newFactor * p_to.w);
 }
 
-Quat Quat::cubic_slerp(const Quat &p_b, const Quat &p_pre_a, const Quat &p_post_b, const real_t &p_weight) const {
+Quaternion Quaternion::cubic_slerp(const Quaternion &p_b, const Quaternion &p_pre_a, const Quaternion &p_post_b, const real_t &p_weight) const {
 #ifdef MATH_CHECKS
-	ERR_FAIL_COND_V_MSG(!is_normalized(), Quat(), "The start quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!is_normalized(), Quaternion(), "The start quaternion must be normalized.");
-	ERR_FAIL_COND_V_MSG(!p_b.is_normalized(), Quat(), "The end quaternion must be normalized.");
+	ERR_FAIL_COND_V_MSG(!p_b.is_normalized(), Quaternion(), "The end quaternion must be normalized.");
 #endif
 	//the only way to do slerp :|
 	real_t t2 = (1.0 - p_weight) * p_weight * 2;
-	Quat sp = this->slerp(p_b, p_weight);
+	Quaternion sp = this->slerp(p_b, p_weight);
-	Quat sq = p_pre_a.slerpni(p_post_b, p_weight);
+	Quaternion sq = p_pre_a.slerpni(p_post_b, p_weight);
 	return sp.slerpni(sq, t2);
 }
 
-Quat::operator String() const {
+Quaternion::operator String() const {
 	return String::num(x) + ", " + String::num(y) + ", " + String::num(z) + ", " + String::num(w);
 }
 
-Quat::Quat(const Vector3 &p_axis, real_t p_angle) {
+Quaternion::Quaternion(const Vector3 &p_axis, real_t p_angle) {
 #ifdef MATH_CHECKS
 	ERR_FAIL_COND_MSG(!p_axis.is_normalized(), "The axis Vector3 must be normalized.");
 #endif
@@ -209,7 +209,7 @@ Quat::Quat(const Vector3 &p_axis, real_t p_angle) {
 // (ax, ay, az), where ax is the angle of rotation around x axis,
 // and similar for other axes.
 // This implementation uses YXZ convention (Z is the first rotation).
-Quat::Quat(const Vector3 &p_euler) {
+Quaternion::Quaternion(const Vector3 &p_euler) {
 	real_t half_a1 = p_euler.y * 0.5;
 	real_t half_a2 = p_euler.x * 0.5;
 	real_t half_a3 = p_euler.z * 0.5;

core/math/quaternion.h

@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  quat.h                                                               */
+/*  quaternion.h                                                         */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -36,7 +36,7 @@
 #include "core/math/vector3.h"
 #include "core/string/ustring.h"
 
-class Quat {
+class Quaternion {
 public:
 	union {
 		struct {
@@ -55,21 +55,21 @@ public:
 		return components[idx];
 	}
 	_FORCE_INLINE_ real_t length_squared() const;
-	bool is_equal_approx(const Quat &p_quat) const;
+	bool is_equal_approx(const Quaternion &p_quaternion) const;
 	real_t length() const;
 	void normalize();
-	Quat normalized() const;
+	Quaternion normalized() const;
 	bool is_normalized() const;
-	Quat inverse() const;
+	Quaternion inverse() const;
-	_FORCE_INLINE_ real_t dot(const Quat &p_q) const;
+	_FORCE_INLINE_ real_t dot(const Quaternion &p_q) const;
 
 	Vector3 get_euler_xyz() const;
 	Vector3 get_euler_yxz() const;
 	Vector3 get_euler() const { return get_euler_yxz(); };
 
-	Quat slerp(const Quat &p_to, const real_t &p_weight) const;
+	Quaternion slerp(const Quaternion &p_to, const real_t &p_weight) const;
-	Quat slerpni(const Quat &p_to, const real_t &p_weight) const;
+	Quaternion slerpni(const Quaternion &p_to, const real_t &p_weight) const;
-	Quat cubic_slerp(const Quat &p_b, const Quat &p_pre_a, const Quat &p_post_b, const real_t &p_weight) const;
+	Quaternion cubic_slerp(const Quaternion &p_b, const Quaternion &p_pre_a, const Quaternion &p_post_b, const real_t &p_weight) const;
 
 	_FORCE_INLINE_ void get_axis_angle(Vector3 &r_axis, real_t &r_angle) const {
 		r_angle = 2 * Math::acos(w);
@@ -79,11 +79,11 @@ public:
 		r_axis.z = z * r;
 	}
 
-	void operator*=(const Quat &p_q);
+	void operator*=(const Quaternion &p_q);
-	Quat operator*(const Quat &p_q) const;
+	Quaternion operator*(const Quaternion &p_q) const;
 
-	Quat operator*(const Vector3 &v) const {
+	Quaternion operator*(const Vector3 &v) const {
-		return Quat(w * v.x + y * v.z - z * v.y,
+		return Quaternion(w * v.x + y * v.z - z * v.y,
 				w * v.y + z * v.x - x * v.z,
 				w * v.z + x * v.y - y * v.x,
 				-x * v.x - y * v.y - z * v.z);
@@ -102,42 +102,42 @@ public:
 		return inverse().xform(v);
 	}
 
-	_FORCE_INLINE_ void operator+=(const Quat &p_q);
+	_FORCE_INLINE_ void operator+=(const Quaternion &p_q);
-	_FORCE_INLINE_ void operator-=(const Quat &p_q);
+	_FORCE_INLINE_ void operator-=(const Quaternion &p_q);
 	_FORCE_INLINE_ void operator*=(const real_t &s);
 	_FORCE_INLINE_ void operator/=(const real_t &s);
-	_FORCE_INLINE_ Quat operator+(const Quat &q2) const;
+	_FORCE_INLINE_ Quaternion operator+(const Quaternion &q2) const;
-	_FORCE_INLINE_ Quat operator-(const Quat &q2) const;
+	_FORCE_INLINE_ Quaternion operator-(const Quaternion &q2) const;
-	_FORCE_INLINE_ Quat operator-() const;
+	_FORCE_INLINE_ Quaternion operator-() const;
-	_FORCE_INLINE_ Quat operator*(const real_t &s) const;
+	_FORCE_INLINE_ Quaternion operator*(const real_t &s) const;
-	_FORCE_INLINE_ Quat operator/(const real_t &s) const;
+	_FORCE_INLINE_ Quaternion operator/(const real_t &s) const;
 
-	_FORCE_INLINE_ bool operator==(const Quat &p_quat) const;
+	_FORCE_INLINE_ bool operator==(const Quaternion &p_quaternion) const;
-	_FORCE_INLINE_ bool operator!=(const Quat &p_quat) const;
+	_FORCE_INLINE_ bool operator!=(const Quaternion &p_quaternion) const;
 
 	operator String() const;
 
-	_FORCE_INLINE_ Quat() {}
+	_FORCE_INLINE_ Quaternion() {}
 
-	_FORCE_INLINE_ Quat(real_t p_x, real_t p_y, real_t p_z, real_t p_w) :
+	_FORCE_INLINE_ Quaternion(real_t p_x, real_t p_y, real_t p_z, real_t p_w) :
 			x(p_x),
 			y(p_y),
 			z(p_z),
 			w(p_w) {
 	}
 
-	Quat(const Vector3 &p_axis, real_t p_angle);
+	Quaternion(const Vector3 &p_axis, real_t p_angle);
 
-	Quat(const Vector3 &p_euler);
+	Quaternion(const Vector3 &p_euler);
 
-	Quat(const Quat &p_q) :
+	Quaternion(const Quaternion &p_q) :
 			x(p_q.x),
 			y(p_q.y),
 			z(p_q.z),
 			w(p_q.w) {
 	}
 
-	Quat &operator=(const Quat &p_q) {
+	Quaternion &operator=(const Quaternion &p_q) {
 		x = p_q.x;
 		y = p_q.y;
 		z = p_q.z;
@@ -145,7 +145,7 @@ public:
 		return *this;
 	}
 
-	Quat(const Vector3 &v0, const Vector3 &v1) // shortest arc
+	Quaternion(const Vector3 &v0, const Vector3 &v1) // shortest arc
 	{
 		Vector3 c = v0.cross(v1);
 		real_t d = v0.dot(v1);
@@ -167,72 +167,72 @@ public:
 	}
 };
 
-real_t Quat::dot(const Quat &p_q) const {
+real_t Quaternion::dot(const Quaternion &p_q) const {
 	return x * p_q.x + y * p_q.y + z * p_q.z + w * p_q.w;
 }
 
-real_t Quat::length_squared() const {
+real_t Quaternion::length_squared() const {
 	return dot(*this);
 }
 
-void Quat::operator+=(const Quat &p_q) {
+void Quaternion::operator+=(const Quaternion &p_q) {
 	x += p_q.x;
 	y += p_q.y;
 	z += p_q.z;
 	w += p_q.w;
 }
 
-void Quat::operator-=(const Quat &p_q) {
+void Quaternion::operator-=(const Quaternion &p_q) {
 	x -= p_q.x;
 	y -= p_q.y;
 	z -= p_q.z;
 	w -= p_q.w;
 }
 
-void Quat::operator*=(const real_t &s) {
+void Quaternion::operator*=(const real_t &s) {
 	x *= s;
 	y *= s;
 	z *= s;
 	w *= s;
 }
 
-void Quat::operator/=(const real_t &s) {
+void Quaternion::operator/=(const real_t &s) {
 	*this *= 1.0 / s;
 }
 
-Quat Quat::operator+(const Quat &q2) const {
+Quaternion Quaternion::operator+(const Quaternion &q2) const {
-	const Quat &q1 = *this;
+	const Quaternion &q1 = *this;
-	return Quat(q1.x + q2.x, q1.y + q2.y, q1.z + q2.z, q1.w + q2.w);
+	return Quaternion(q1.x + q2.x, q1.y + q2.y, q1.z + q2.z, q1.w + q2.w);
 }
 
-Quat Quat::operator-(const Quat &q2) const {
+Quaternion Quaternion::operator-(const Quaternion &q2) const {
-	const Quat &q1 = *this;
+	const Quaternion &q1 = *this;
-	return Quat(q1.x - q2.x, q1.y - q2.y, q1.z - q2.z, q1.w - q2.w);
+	return Quaternion(q1.x - q2.x, q1.y - q2.y, q1.z - q2.z, q1.w - q2.w);
 }
 
-Quat Quat::operator-() const {
+Quaternion Quaternion::operator-() const {
-	const Quat &q2 = *this;
+	const Quaternion &q2 = *this;
-	return Quat(-q2.x, -q2.y, -q2.z, -q2.w);
+	return Quaternion(-q2.x, -q2.y, -q2.z, -q2.w);
 }
 
-Quat Quat::operator*(const real_t &s) const {
+Quaternion Quaternion::operator*(const real_t &s) const {
-	return Quat(x * s, y * s, z * s, w * s);
+	return Quaternion(x * s, y * s, z * s, w * s);
 }
 
-Quat Quat::operator/(const real_t &s) const {
+Quaternion Quaternion::operator/(const real_t &s) const {
 	return *this * (1.0 / s);
 }
 
-bool Quat::operator==(const Quat &p_quat) const {
+bool Quaternion::operator==(const Quaternion &p_quaternion) const {
-	return x == p_quat.x && y == p_quat.y && z == p_quat.z && w == p_quat.w;
+	return x == p_quaternion.x && y == p_quaternion.y && z == p_quaternion.z && w == p_quaternion.w;
 }
 
-bool Quat::operator!=(const Quat &p_quat) const {
+bool Quaternion::operator!=(const Quaternion &p_quaternion) const {
-	return x != p_quat.x || y != p_quat.y || z != p_quat.z || w != p_quat.w;
+	return x != p_quaternion.x || y != p_quaternion.y || z != p_quaternion.z || w != p_quaternion.w;
 }
 
-_FORCE_INLINE_ Quat operator*(const real_t &p_real, const Quat &p_quat) {
+_FORCE_INLINE_ Quaternion operator*(const real_t &p_real, const Quaternion &p_quaternion) {
-	return p_quat * p_real;
+	return p_quaternion * p_real;
 }
 
 #endif // QUAT_H

core/math/transform_3d.cpp

@@ -112,15 +112,15 @@ Transform3D Transform3D::interpolate_with(const Transform3D &p_transform, real_t
 	/* not sure if very "efficient" but good enough? */
 
 	Vector3 src_scale = basis.get_scale();
-	Quat src_rot = basis.get_rotation_quat();
+	Quaternion src_rot = basis.get_rotation_quaternion();
 	Vector3 src_loc = origin;
 
 	Vector3 dst_scale = p_transform.basis.get_scale();
-	Quat dst_rot = p_transform.basis.get_rotation_quat();
+	Quaternion dst_rot = p_transform.basis.get_rotation_quaternion();
 	Vector3 dst_loc = p_transform.origin;
 
 	Transform3D interp;
-	interp.basis.set_quat_scale(src_rot.slerp(dst_rot, p_c).normalized(), src_scale.lerp(dst_scale, p_c));
+	interp.basis.set_quaternion_scale(src_rot.slerp(dst_rot, p_c).normalized(), src_scale.lerp(dst_scale, p_c));
 	interp.origin = src_loc.lerp(dst_loc, p_c);
 
 	return interp;

core/variant/method_ptrcall.h

@@ -122,7 +122,7 @@ MAKE_PTRARG_BY_REFERENCE(Vector3);
 MAKE_PTRARG_BY_REFERENCE(Vector3i);
 MAKE_PTRARG(Transform2D);
 MAKE_PTRARG_BY_REFERENCE(Plane);
-MAKE_PTRARG(Quat);
+MAKE_PTRARG(Quaternion);
 MAKE_PTRARG_BY_REFERENCE(AABB);
 MAKE_PTRARG_BY_REFERENCE(Basis);
 MAKE_PTRARG_BY_REFERENCE(Transform3D);

core/variant/type_info.h

@@ -146,7 +146,7 @@ MAKE_TYPE_INFO(Rect2i, Variant::RECT2I)
 MAKE_TYPE_INFO(Vector3i, Variant::VECTOR3I)
 MAKE_TYPE_INFO(Transform2D, Variant::TRANSFORM2D)
 MAKE_TYPE_INFO(Plane, Variant::PLANE)
-MAKE_TYPE_INFO(Quat, Variant::QUAT)
+MAKE_TYPE_INFO(Quaternion, Variant::QUATERNION)
 MAKE_TYPE_INFO(AABB, Variant::AABB)
 MAKE_TYPE_INFO(Basis, Variant::BASIS)
 MAKE_TYPE_INFO(Transform3D, Variant::TRANSFORM3D)

core/variant/typed_array.h

@@ -98,7 +98,7 @@ MAKE_TYPED_ARRAY(Vector3, Variant::VECTOR3)
 MAKE_TYPED_ARRAY(Vector3i, Variant::VECTOR3I)
 MAKE_TYPED_ARRAY(Transform2D, Variant::TRANSFORM2D)
 MAKE_TYPED_ARRAY(Plane, Variant::PLANE)
-MAKE_TYPED_ARRAY(Quat, Variant::QUAT)
+MAKE_TYPED_ARRAY(Quaternion, Variant::QUATERNION)
 MAKE_TYPED_ARRAY(AABB, Variant::AABB)
 MAKE_TYPED_ARRAY(Basis, Variant::BASIS)
 MAKE_TYPED_ARRAY(Transform3D, Variant::TRANSFORM3D)
@@ -196,7 +196,7 @@ MAKE_TYPED_ARRAY_INFO(Vector3, Variant::VECTOR3)
 MAKE_TYPED_ARRAY_INFO(Vector3i, Variant::VECTOR3I)
 MAKE_TYPED_ARRAY_INFO(Transform2D, Variant::TRANSFORM2D)
 MAKE_TYPED_ARRAY_INFO(Plane, Variant::PLANE)
-MAKE_TYPED_ARRAY_INFO(Quat, Variant::QUAT)
+MAKE_TYPED_ARRAY_INFO(Quaternion, Variant::QUATERNION)
 MAKE_TYPED_ARRAY_INFO(AABB, Variant::AABB)
 MAKE_TYPED_ARRAY_INFO(Basis, Variant::BASIS)
 MAKE_TYPED_ARRAY_INFO(Transform3D, Variant::TRANSFORM3D)

core/variant/variant.cpp

@@ -91,8 +91,8 @@ String Variant::get_type_name(Variant::Type p_type) {
 		case AABB: {
 			return "AABB";
 		} break;
-		case QUAT: {
+		case QUATERNION: {
-			return "Quat";
+			return "Quaternion";
 
 		} break;
 		case BASIS: {
@@ -300,7 +300,7 @@ bool Variant::can_convert(Variant::Type p_type_from, Variant::Type p_type_to) {
 
 		} break;
 
-		case QUAT: {
+		case QUATERNION: {
 			static const Type valid[] = {
 				BASIS,
 				NIL
@@ -311,7 +311,7 @@ bool Variant::can_convert(Variant::Type p_type_from, Variant::Type p_type_to) {
 		} break;
 		case BASIS: {
 			static const Type valid[] = {
-				QUAT,
+				QUATERNION,
 				VECTOR3,
 				NIL
 			};
@@ -322,7 +322,7 @@ bool Variant::can_convert(Variant::Type p_type_from, Variant::Type p_type_to) {
 		case TRANSFORM3D: {
 			static const Type valid[] = {
 				TRANSFORM2D,
-				QUAT,
+				QUATERNION,
 				BASIS,
 				NIL
 			};
@@ -607,7 +607,7 @@ bool Variant::can_convert_strict(Variant::Type p_type_from, Variant::Type p_type
 
 		} break;
 
-		case QUAT: {
+		case QUATERNION: {
 			static const Type valid[] = {
 				BASIS,
 				NIL
@@ -618,7 +618,7 @@ bool Variant::can_convert_strict(Variant::Type p_type_from, Variant::Type p_type
 		} break;
 		case BASIS: {
 			static const Type valid[] = {
-				QUAT,
+				QUATERNION,
 				VECTOR3,
 				NIL
 			};
@@ -629,7 +629,7 @@ bool Variant::can_convert_strict(Variant::Type p_type_from, Variant::Type p_type
 		case TRANSFORM3D: {
 			static const Type valid[] = {
 				TRANSFORM2D,
-				QUAT,
+				QUATERNION,
 				BASIS,
 				NIL
 			};
@@ -873,8 +873,8 @@ bool Variant::is_zero() const {
 		case AABB: {
 			return *_data._aabb == ::AABB();
 		} break;
-		case QUAT: {
+		case QUATERNION: {
-			return *reinterpret_cast<const Quat *>(_data._mem) == Quat();
+			return *reinterpret_cast<const Quaternion *>(_data._mem) == Quaternion();
 
 		} break;
 		case BASIS: {
@@ -1092,8 +1092,8 @@ void Variant::reference(const Variant &p_variant) {
 		case AABB: {
 			_data._aabb = memnew(::AABB(*p_variant._data._aabb));
 		} break;
-		case QUAT: {
+		case QUATERNION: {
-			memnew_placement(_data._mem, Quat(*reinterpret_cast<const Quat *>(p_variant._data._mem)));
+			memnew_placement(_data._mem, Quaternion(*reinterpret_cast<const Quaternion *>(p_variant._data._mem)));
 
 		} break;
 		case BASIS: {
@@ -1254,8 +1254,8 @@ void Variant::zero() {
 		case PLANE:
 			*reinterpret_cast<Plane *>(this->_data._mem) = Plane();
 			break;
-		case QUAT:
+		case QUATERNION:
-			*reinterpret_cast<Quat *>(this->_data._mem) = Quat();
+			*reinterpret_cast<Quaternion *>(this->_data._mem) = Quaternion();
 			break;
 		case COLOR:
 			*reinterpret_cast<Color *>(this->_data._mem) = Color();
@@ -1275,7 +1275,7 @@ void Variant::_clear_internal() {
 		// no point, they don't allocate memory
 		VECTOR3,
 		PLANE,
-		QUAT,
+		QUATERNION,
 		COLOR,
 		VECTOR2,
 		RECT2
@@ -1653,11 +1653,10 @@ String Variant::stringify(List<const void *> &stack) const {
 			return "(" + operator Vector3i() + ")";
 		case PLANE:
 			return operator Plane();
-		//case QUAT:
 		case AABB:
 			return operator ::AABB();
-		case QUAT:
+		case QUATERNION:
-			return "(" + operator Quat() + ")";
+			return "(" + operator Quaternion() + ")";
 		case BASIS: {
 			Basis mat3 = operator Basis();
 
@@ -1956,8 +1955,8 @@ Variant::operator ::AABB() const {
 Variant::operator Basis() const {
 	if (type == BASIS) {
 		return *_data._basis;
-	} else if (type == QUAT) {
+	} else if (type == QUATERNION) {
-		return *reinterpret_cast<const Quat *>(_data._mem);
+		return *reinterpret_cast<const Quaternion *>(_data._mem);
 	} else if (type == VECTOR3) {
 		return Basis(*reinterpret_cast<const Vector3 *>(_data._mem));
 	} else if (type == TRANSFORM3D) { // unexposed in Variant::can_convert?
@@ -1967,15 +1966,15 @@ Variant::operator Basis() const {
 	}
 }
 
-Variant::operator Quat() const {
+Variant::operator Quaternion() const {
-	if (type == QUAT) {
+	if (type == QUATERNION) {
-		return *reinterpret_cast<const Quat *>(_data._mem);
+		return *reinterpret_cast<const Quaternion *>(_data._mem);
 	} else if (type == BASIS) {
 		return *_data._basis;
 	} else if (type == TRANSFORM3D) {
 		return _data._transform3d->basis;
 	} else {
-		return Quat();
+		return Quaternion();
 	}
 }
 
@@ -1984,8 +1983,8 @@ Variant::operator Transform3D() const {
 		return *_data._transform3d;
 	} else if (type == BASIS) {
 		return Transform3D(*_data._basis, Vector3());
-	} else if (type == QUAT) {
+	} else if (type == QUATERNION) {
-		return Transform3D(Basis(*reinterpret_cast<const Quat *>(_data._mem)), Vector3());
+		return Transform3D(Basis(*reinterpret_cast<const Quaternion *>(_data._mem)), Vector3());
 	} else if (type == TRANSFORM2D) {
 		const Transform2D &t = *_data._transform2d;
 		Transform3D m;
@@ -2495,9 +2494,9 @@ Variant::Variant(const Basis &p_matrix) {
 	_data._basis = memnew(Basis(p_matrix));
 }
 
-Variant::Variant(const Quat &p_quat) {
+Variant::Variant(const Quaternion &p_quaternion) {
-	type = QUAT;
+	type = QUATERNION;
-	memnew_placement(_data._mem, Quat(p_quat));
+	memnew_placement(_data._mem, Quaternion(p_quaternion));
 }
 
 Variant::Variant(const Transform3D &p_transform) {
@@ -2739,8 +2738,8 @@ void Variant::operator=(const Variant &p_variant) {
 		case AABB: {
 			*_data._aabb = *(p_variant._data._aabb);
 		} break;
-		case QUAT: {
+		case QUATERNION: {
-			*reinterpret_cast<Quat *>(_data._mem) = *reinterpret_cast<const Quat *>(p_variant._data._mem);
+			*reinterpret_cast<Quaternion *>(_data._mem) = *reinterpret_cast<const Quaternion *>(p_variant._data._mem);
 		} break;
 		case BASIS: {
 			*_data._basis = *(p_variant._data._basis);
@@ -2916,11 +2915,11 @@ uint32_t Variant::hash() const {
 			return hash;
 
 		} break;
-		case QUAT: {
+		case QUATERNION: {
-			uint32_t hash = hash_djb2_one_float(reinterpret_cast<const Quat *>(_data._mem)->x);
+			uint32_t hash = hash_djb2_one_float(reinterpret_cast<const Quaternion *>(_data._mem)->x);
-			hash = hash_djb2_one_float(reinterpret_cast<const Quat *>(_data._mem)->y, hash);
+			hash = hash_djb2_one_float(reinterpret_cast<const Quaternion *>(_data._mem)->y, hash);
-			hash = hash_djb2_one_float(reinterpret_cast<const Quat *>(_data._mem)->z, hash);
+			hash = hash_djb2_one_float(reinterpret_cast<const Quaternion *>(_data._mem)->z, hash);
-			return hash_djb2_one_float(reinterpret_cast<const Quat *>(_data._mem)->w, hash);
+			return hash_djb2_one_float(reinterpret_cast<const Quaternion *>(_data._mem)->w, hash);
 
 		} break;
 		case BASIS: {
@@ -3127,7 +3126,7 @@ uint32_t Variant::hash() const {
 			(hash_compare_scalar((p_lhs).y, (p_rhs).y)) && \
 			(hash_compare_scalar((p_lhs).z, (p_rhs).z))
 
-#define hash_compare_quat(p_lhs, p_rhs)                    \
+#define hash_compare_quaternion(p_lhs, p_rhs)              \
 	(hash_compare_scalar((p_lhs).x, (p_rhs).x)) &&         \
 			(hash_compare_scalar((p_lhs).y, (p_rhs).y)) && \
 			(hash_compare_scalar((p_lhs).z, (p_rhs).z)) && \
@@ -3235,11 +3234,11 @@ bool Variant::hash_compare(const Variant &p_variant) const {
 
 		} break;
 
-		case QUAT: {
+		case QUATERNION: {
-			const Quat *l = reinterpret_cast<const Quat *>(_data._mem);
+			const Quaternion *l = reinterpret_cast<const Quaternion *>(_data._mem);
-			const Quat *r = reinterpret_cast<const Quat *>(p_variant._data._mem);
+			const Quaternion *r = reinterpret_cast<const Quaternion *>(p_variant._data._mem);
 
-			return hash_compare_quat(*l, *r);
+			return hash_compare_quaternion(*l, *r);
 		} break;
 
 		case BASIS: {

core/variant/variant.h

@@ -37,7 +37,7 @@
 #include "core/math/color.h"
 #include "core/math/face3.h"
 #include "core/math/plane.h"
-#include "core/math/quat.h"
+#include "core/math/quaternion.h"
 #include "core/math/transform_2d.h"
 #include "core/math/transform_3d.h"
 #include "core/math/vector3.h"
@@ -88,7 +88,7 @@ public:
 		VECTOR3I,
 		TRANSFORM2D,
 		PLANE,
-		QUAT,
+		QUATERNION,
 		AABB,
 		BASIS,
 		TRANSFORM3D,
@@ -225,7 +225,7 @@ private:
 			false, //VECTOR3I,
 			true, //TRANSFORM2D,
 			false, //PLANE,
-			false, //QUAT,
+			false, //QUATERNION,
 			true, //AABB,
 			true, //BASIS,
 			true, //TRANSFORM,
@@ -320,7 +320,7 @@ public:
 	operator Vector3i() const;
 	operator Plane() const;
 	operator ::AABB() const;
-	operator Quat() const;
+	operator Quaternion() const;
 	operator Basis() const;
 	operator Transform2D() const;
 	operator Transform3D() const;
@@ -392,7 +392,7 @@ public:
 	Variant(const Vector3i &p_vector3i);
 	Variant(const Plane &p_plane);
 	Variant(const ::AABB &p_aabb);
-	Variant(const Quat &p_quat);
+	Variant(const Quaternion &p_quat);
 	Variant(const Basis &p_matrix);
 	Variant(const Transform2D &p_transform);
 	Variant(const Transform3D &p_transform);

core/variant/variant_call.cpp

@@ -1544,19 +1544,19 @@ static void _register_variant_builtin_methods() {
 	bind_methodv(Plane, intersects_ray, &Plane::intersects_ray_bind, sarray("from", "dir"), varray());
 	bind_methodv(Plane, intersects_segment, &Plane::intersects_segment_bind, sarray("from", "to"), varray());
 
-	/* Quat */
+	/* Quaternion */
 
-	bind_method(Quat, length, sarray(), varray());
+	bind_method(Quaternion, length, sarray(), varray());
-	bind_method(Quat, length_squared, sarray(), varray());
+	bind_method(Quaternion, length_squared, sarray(), varray());
-	bind_method(Quat, normalized, sarray(), varray());
+	bind_method(Quaternion, normalized, sarray(), varray());
-	bind_method(Quat, is_normalized, sarray(), varray());
+	bind_method(Quaternion, is_normalized, sarray(), varray());
-	bind_method(Quat, is_equal_approx, sarray("to"), varray());
+	bind_method(Quaternion, is_equal_approx, sarray("to"), varray());
-	bind_method(Quat, inverse, sarray(), varray());
+	bind_method(Quaternion, inverse, sarray(), varray());
-	bind_method(Quat, dot, sarray("with"), varray());
+	bind_method(Quaternion, dot, sarray("with"), varray());
-	bind_method(Quat, slerp, sarray("to", "weight"), varray());
+	bind_method(Quaternion, slerp, sarray("to", "weight"), varray());
-	bind_method(Quat, slerpni, sarray("to", "weight"), varray());
+	bind_method(Quaternion, slerpni, sarray("to", "weight"), varray());
-	bind_method(Quat, cubic_slerp, sarray("b", "pre_a", "post_b", "weight"), varray());
+	bind_method(Quaternion, cubic_slerp, sarray("b", "pre_a", "post_b", "weight"), varray());
-	bind_method(Quat, get_euler, sarray(), varray());
+	bind_method(Quaternion, get_euler, sarray(), varray());
 
 	/* Color */
 
@@ -1668,7 +1668,7 @@ static void _register_variant_builtin_methods() {
 	bind_method(Basis, get_orthogonal_index, sarray(), varray());
 	bind_method(Basis, slerp, sarray("to", "weight"), varray());
 	bind_method(Basis, is_equal_approx, sarray("b"), varray());
-	bind_method(Basis, get_rotation_quat, sarray(), varray());
+	bind_method(Basis, get_rotation_quaternion, sarray(), varray());
 
 	/* AABB */
 
@@ -2047,7 +2047,7 @@ static void _register_variant_builtin_methods() {
 	_VariantCall::add_variant_constant(Variant::PLANE, "PLANE_XZ", Plane(Vector3(0, 1, 0), 0));
 	_VariantCall::add_variant_constant(Variant::PLANE, "PLANE_XY", Plane(Vector3(0, 0, 1), 0));
 
-	_VariantCall::add_variant_constant(Variant::QUAT, "IDENTITY", Quat(0, 0, 0, 1));
+	_VariantCall::add_variant_constant(Variant::QUATERNION, "IDENTITY", Quaternion(0, 0, 0, 1));
 }
 
 void Variant::_register_variant_methods() {

core/variant/variant_construct.cpp

@@ -62,7 +62,7 @@ MAKE_PTRCONSTRUCT(Vector3);
 MAKE_PTRCONSTRUCT(Vector3i);
 MAKE_PTRCONSTRUCT(Transform2D);
 MAKE_PTRCONSTRUCT(Plane);
-MAKE_PTRCONSTRUCT(Quat);
+MAKE_PTRCONSTRUCT(Quaternion);
 MAKE_PTRCONSTRUCT(AABB);
 MAKE_PTRCONSTRUCT(Basis);
 MAKE_PTRCONSTRUCT(Transform3D);
@@ -659,13 +659,13 @@ void Variant::_register_variant_constructors() {
 	add_constructor<VariantConstructor<Plane, Vector3, Vector3, Vector3>>(sarray("point1", "point2", "point3"));
 	add_constructor<VariantConstructor<Plane, double, double, double, double>>(sarray("a", "b", "c", "d"));
 
-	add_constructor<VariantConstructNoArgs<Quat>>(sarray());
+	add_constructor<VariantConstructNoArgs<Quaternion>>(sarray());
-	add_constructor<VariantConstructor<Quat, Quat>>(sarray("from"));
+	add_constructor<VariantConstructor<Quaternion, Quaternion>>(sarray("from"));
-	add_constructor<VariantConstructor<Quat, Basis>>(sarray("from"));
+	add_constructor<VariantConstructor<Quaternion, Basis>>(sarray("from"));
-	add_constructor<VariantConstructor<Quat, Vector3>>(sarray("euler"));
+	add_constructor<VariantConstructor<Quaternion, Vector3>>(sarray("euler"));
-	add_constructor<VariantConstructor<Quat, Vector3, double>>(sarray("axis", "angle"));
+	add_constructor<VariantConstructor<Quaternion, Vector3, double>>(sarray("axis", "angle"));
-	add_constructor<VariantConstructor<Quat, Vector3, Vector3>>(sarray("arc_from", "arc_to"));
+	add_constructor<VariantConstructor<Quaternion, Vector3, Vector3>>(sarray("arc_from", "arc_to"));
-	add_constructor<VariantConstructor<Quat, double, double, double, double>>(sarray("x", "y", "z", "w"));
+	add_constructor<VariantConstructor<Quaternion, double, double, double, double>>(sarray("x", "y", "z", "w"));
 
 	add_constructor<VariantConstructNoArgs<::AABB>>(sarray());
 	add_constructor<VariantConstructor<::AABB, ::AABB>>(sarray("from"));
@@ -673,7 +673,7 @@ void Variant::_register_variant_constructors() {
 
 	add_constructor<VariantConstructNoArgs<Basis>>(sarray());
 	add_constructor<VariantConstructor<Basis, Basis>>(sarray("from"));
-	add_constructor<VariantConstructor<Basis, Quat>>(sarray("from"));
+	add_constructor<VariantConstructor<Basis, Quaternion>>(sarray("from"));
 	add_constructor<VariantConstructor<Basis, Vector3>>(sarray("euler"));
 	add_constructor<VariantConstructor<Basis, Vector3, double>>(sarray("axis", "phi"));
 	add_constructor<VariantConstructor<Basis, Vector3, Vector3, Vector3>>(sarray("x_axis", "y_axis", "z_axis"));

core/variant/variant_internal.h

@@ -138,8 +138,8 @@ public:
 	_FORCE_INLINE_ static const Transform2D *get_transform2d(const Variant *v) { return v->_data._transform2d; }
 	_FORCE_INLINE_ static Plane *get_plane(Variant *v) { return reinterpret_cast<Plane *>(v->_data._mem); }
 	_FORCE_INLINE_ static const Plane *get_plane(const Variant *v) { return reinterpret_cast<const Plane *>(v->_data._mem); }
-	_FORCE_INLINE_ static Quat *get_quat(Variant *v) { return reinterpret_cast<Quat *>(v->_data._mem); }
+	_FORCE_INLINE_ static Quaternion *get_quaternion(Variant *v) { return reinterpret_cast<Quaternion *>(v->_data._mem); }
-	_FORCE_INLINE_ static const Quat *get_quat(const Variant *v) { return reinterpret_cast<const Quat *>(v->_data._mem); }
+	_FORCE_INLINE_ static const Quaternion *get_quaternion(const Variant *v) { return reinterpret_cast<const Quaternion *>(v->_data._mem); }
 	_FORCE_INLINE_ static ::AABB *get_aabb(Variant *v) { return v->_data._aabb; }
 	_FORCE_INLINE_ static const ::AABB *get_aabb(const Variant *v) { return v->_data._aabb; }
 	_FORCE_INLINE_ static Basis *get_basis(Variant *v) { return v->_data._basis; }
@@ -324,8 +324,8 @@ public:
 				return get_transform(v);
 			case Variant::TRANSFORM2D:
 				return get_transform2d(v);
-			case Variant::QUAT:
+			case Variant::QUATERNION:
-				return get_quat(v);
+				return get_quaternion(v);
 			case Variant::PLANE:
 				return get_plane(v);
 			case Variant::BASIS:
@@ -402,8 +402,8 @@ public:
 				return get_transform(v);
 			case Variant::TRANSFORM2D:
 				return get_transform2d(v);
-			case Variant::QUAT:
+			case Variant::QUATERNION:
-				return get_quat(v);
+				return get_quaternion(v);
 			case Variant::PLANE:
 				return get_plane(v);
 			case Variant::BASIS:
@@ -602,9 +602,9 @@ struct VariantGetInternalPtr<Plane> {
 };
 
 template <>
-struct VariantGetInternalPtr<Quat> {
+struct VariantGetInternalPtr<Quaternion> {
-	static Quat *get_ptr(Variant *v) { return VariantInternal::get_quat(v); }
+	static Quaternion *get_ptr(Variant *v) { return VariantInternal::get_quaternion(v); }
-	static const Quat *get_ptr(const Variant *v) { return VariantInternal::get_quat(v); }
+	static const Quaternion *get_ptr(const Variant *v) { return VariantInternal::get_quaternion(v); }
 };
 
 template <>
@@ -831,9 +831,9 @@ struct VariantInternalAccessor<Plane> {
 };
 
 template <>
-struct VariantInternalAccessor<Quat> {
+struct VariantInternalAccessor<Quaternion> {
-	static _FORCE_INLINE_ const Quat &get(const Variant *v) { return *VariantInternal::get_quat(v); }
+	static _FORCE_INLINE_ const Quaternion &get(const Variant *v) { return *VariantInternal::get_quaternion(v); }
-	static _FORCE_INLINE_ void set(Variant *v, const Quat &p_value) { *VariantInternal::get_quat(v) = p_value; }
+	static _FORCE_INLINE_ void set(Variant *v, const Quaternion &p_value) { *VariantInternal::get_quaternion(v) = p_value; }
 };
 
 template <>
@@ -1067,8 +1067,8 @@ struct VariantInitializer<Plane> {
 };
 
 template <>
-struct VariantInitializer<Quat> {
+struct VariantInitializer<Quaternion> {
-	static _FORCE_INLINE_ void init(Variant *v) { VariantInternal::init_generic<Quat>(v); }
+	static _FORCE_INLINE_ void init(Variant *v) { VariantInternal::init_generic<Quaternion>(v); }
 };
 
 template <>
@@ -1241,8 +1241,8 @@ struct VariantZeroAssigner<Plane> {
 };
 
 template <>
-struct VariantZeroAssigner<Quat> {
+struct VariantZeroAssigner<Quaternion> {
-	static _FORCE_INLINE_ void zero(Variant *v) { *VariantInternal::get_quat(v) = Quat(); }
+	static _FORCE_INLINE_ void zero(Variant *v) { *VariantInternal::get_quaternion(v) = Quaternion(); }
 };
 
 template <>

core/variant/variant_op.cpp

@@ -1395,7 +1395,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorAdd<Vector2i, Vector2i, Vector2i>>(Variant::OP_ADD, Variant::VECTOR2I, Variant::VECTOR2I);
 	register_op<OperatorEvaluatorAdd<Vector3, Vector3, Vector3>>(Variant::OP_ADD, Variant::VECTOR3, Variant::VECTOR3);
 	register_op<OperatorEvaluatorAdd<Vector3i, Vector3i, Vector3i>>(Variant::OP_ADD, Variant::VECTOR3I, Variant::VECTOR3I);
-	register_op<OperatorEvaluatorAdd<Quat, Quat, Quat>>(Variant::OP_ADD, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorAdd<Quaternion, Quaternion, Quaternion>>(Variant::OP_ADD, Variant::QUATERNION, Variant::QUATERNION);
 	register_op<OperatorEvaluatorAdd<Color, Color, Color>>(Variant::OP_ADD, Variant::COLOR, Variant::COLOR);
 	register_op<OperatorEvaluatorAddArray>(Variant::OP_ADD, Variant::ARRAY, Variant::ARRAY);
 	register_op<OperatorEvaluatorAppendArray<uint8_t>>(Variant::OP_ADD, Variant::PACKED_BYTE_ARRAY, Variant::PACKED_BYTE_ARRAY);
@@ -1416,7 +1416,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorSub<Vector2i, Vector2i, Vector2i>>(Variant::OP_SUBTRACT, Variant::VECTOR2I, Variant::VECTOR2I);
 	register_op<OperatorEvaluatorSub<Vector3, Vector3, Vector3>>(Variant::OP_SUBTRACT, Variant::VECTOR3, Variant::VECTOR3);
 	register_op<OperatorEvaluatorSub<Vector3i, Vector3i, Vector3i>>(Variant::OP_SUBTRACT, Variant::VECTOR3I, Variant::VECTOR3I);
-	register_op<OperatorEvaluatorSub<Quat, Quat, Quat>>(Variant::OP_SUBTRACT, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorSub<Quaternion, Quaternion, Quaternion>>(Variant::OP_SUBTRACT, Variant::QUATERNION, Variant::QUATERNION);
 	register_op<OperatorEvaluatorSub<Color, Color, Color>>(Variant::OP_SUBTRACT, Variant::COLOR, Variant::COLOR);
 
 	register_op<OperatorEvaluatorMul<int64_t, int64_t, int64_t>>(Variant::OP_MULTIPLY, Variant::INT, Variant::INT);
@@ -1449,9 +1449,9 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorMul<Vector3i, Vector3i, int64_t>>(Variant::OP_MULTIPLY, Variant::VECTOR3I, Variant::INT);
 	register_op<OperatorEvaluatorMul<Vector3i, Vector3i, double>>(Variant::OP_MULTIPLY, Variant::VECTOR3I, Variant::FLOAT);
 
-	register_op<OperatorEvaluatorMul<Quat, Quat, Quat>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, Quaternion>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::QUATERNION);
-	register_op<OperatorEvaluatorMul<Quat, Quat, int64_t>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::INT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, int64_t>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::INT);
-	register_op<OperatorEvaluatorMul<Quat, Quat, double>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::FLOAT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, double>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::FLOAT);
 
 	register_op<OperatorEvaluatorMul<Color, Color, Color>>(Variant::OP_MULTIPLY, Variant::COLOR, Variant::COLOR);
 	register_op<OperatorEvaluatorMul<Color, Color, int64_t>>(Variant::OP_MULTIPLY, Variant::COLOR, Variant::INT);
@@ -1477,13 +1477,13 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorXForm<Vector3, Basis, Vector3>>(Variant::OP_MULTIPLY, Variant::BASIS, Variant::VECTOR3);
 	register_op<OperatorEvaluatorXFormInv<Vector3, Vector3, Basis>>(Variant::OP_MULTIPLY, Variant::VECTOR3, Variant::BASIS);
 
-	register_op<OperatorEvaluatorMul<Quat, Quat, Quat>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, Quaternion>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::QUATERNION);
-	register_op<OperatorEvaluatorMul<Quat, Quat, int64_t>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::INT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, int64_t>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::INT);
-	register_op<OperatorEvaluatorMul<Quat, int64_t, Quat>>(Variant::OP_MULTIPLY, Variant::INT, Variant::QUAT);
+	register_op<OperatorEvaluatorMul<Quaternion, int64_t, Quaternion>>(Variant::OP_MULTIPLY, Variant::INT, Variant::QUATERNION);
-	register_op<OperatorEvaluatorMul<Quat, Quat, double>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::FLOAT);
+	register_op<OperatorEvaluatorMul<Quaternion, Quaternion, double>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::FLOAT);
-	register_op<OperatorEvaluatorMul<Quat, double, Quat>>(Variant::OP_MULTIPLY, Variant::FLOAT, Variant::QUAT);
+	register_op<OperatorEvaluatorMul<Quaternion, double, Quaternion>>(Variant::OP_MULTIPLY, Variant::FLOAT, Variant::QUATERNION);
-	register_op<OperatorEvaluatorXForm<Vector3, Quat, Vector3>>(Variant::OP_MULTIPLY, Variant::QUAT, Variant::VECTOR3);
+	register_op<OperatorEvaluatorXForm<Vector3, Quaternion, Vector3>>(Variant::OP_MULTIPLY, Variant::QUATERNION, Variant::VECTOR3);
-	register_op<OperatorEvaluatorXFormInv<Vector3, Vector3, Quat>>(Variant::OP_MULTIPLY, Variant::VECTOR3, Variant::QUAT);
+	register_op<OperatorEvaluatorXFormInv<Vector3, Vector3, Quaternion>>(Variant::OP_MULTIPLY, Variant::VECTOR3, Variant::QUATERNION);
 
 	register_op<OperatorEvaluatorMul<Color, Color, Color>>(Variant::OP_MULTIPLY, Variant::COLOR, Variant::COLOR);
 	register_op<OperatorEvaluatorMul<Color, Color, int64_t>>(Variant::OP_MULTIPLY, Variant::COLOR, Variant::INT);
@@ -1516,8 +1516,8 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorDivNZ<Vector3i, Vector3i, double>>(Variant::OP_DIVIDE, Variant::VECTOR3I, Variant::FLOAT);
 	register_op<OperatorEvaluatorDivNZ<Vector3i, Vector3i, int64_t>>(Variant::OP_DIVIDE, Variant::VECTOR3I, Variant::INT);
 
-	register_op<OperatorEvaluatorDiv<Quat, Quat, double>>(Variant::OP_DIVIDE, Variant::QUAT, Variant::FLOAT);
+	register_op<OperatorEvaluatorDiv<Quaternion, Quaternion, double>>(Variant::OP_DIVIDE, Variant::QUATERNION, Variant::FLOAT);
-	register_op<OperatorEvaluatorDiv<Quat, Quat, int64_t>>(Variant::OP_DIVIDE, Variant::QUAT, Variant::INT);
+	register_op<OperatorEvaluatorDiv<Quaternion, Quaternion, int64_t>>(Variant::OP_DIVIDE, Variant::QUATERNION, Variant::INT);
 
 	register_op<OperatorEvaluatorDiv<Color, Color, Color>>(Variant::OP_DIVIDE, Variant::COLOR, Variant::COLOR);
 	register_op<OperatorEvaluatorDiv<Color, Color, double>>(Variant::OP_DIVIDE, Variant::COLOR, Variant::FLOAT);
@@ -1544,7 +1544,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorStringModT<Vector3i>>(Variant::OP_MODULE, Variant::STRING, Variant::VECTOR3I);
 	register_op<OperatorEvaluatorStringModT<Transform2D>>(Variant::OP_MODULE, Variant::STRING, Variant::TRANSFORM2D);
 	register_op<OperatorEvaluatorStringModT<Plane>>(Variant::OP_MODULE, Variant::STRING, Variant::PLANE);
-	register_op<OperatorEvaluatorStringModT<Quat>>(Variant::OP_MODULE, Variant::STRING, Variant::QUAT);
+	register_op<OperatorEvaluatorStringModT<Quaternion>>(Variant::OP_MODULE, Variant::STRING, Variant::QUATERNION);
 	register_op<OperatorEvaluatorStringModT<::AABB>>(Variant::OP_MODULE, Variant::STRING, Variant::AABB);
 	register_op<OperatorEvaluatorStringModT<Basis>>(Variant::OP_MODULE, Variant::STRING, Variant::BASIS);
 	register_op<OperatorEvaluatorStringModT<Transform3D>>(Variant::OP_MODULE, Variant::STRING, Variant::TRANSFORM3D);
@@ -1574,7 +1574,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorNeg<Vector2i, Vector2i>>(Variant::OP_NEGATE, Variant::VECTOR2I, Variant::NIL);
 	register_op<OperatorEvaluatorNeg<Vector3, Vector3>>(Variant::OP_NEGATE, Variant::VECTOR3, Variant::NIL);
 	register_op<OperatorEvaluatorNeg<Vector3i, Vector3i>>(Variant::OP_NEGATE, Variant::VECTOR3I, Variant::NIL);
-	register_op<OperatorEvaluatorNeg<Quat, Quat>>(Variant::OP_NEGATE, Variant::QUAT, Variant::NIL);
+	register_op<OperatorEvaluatorNeg<Quaternion, Quaternion>>(Variant::OP_NEGATE, Variant::QUATERNION, Variant::NIL);
 	register_op<OperatorEvaluatorNeg<Plane, Plane>>(Variant::OP_NEGATE, Variant::PLANE, Variant::NIL);
 	register_op<OperatorEvaluatorNeg<Color, Color>>(Variant::OP_NEGATE, Variant::COLOR, Variant::NIL);
 
@@ -1584,7 +1584,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorPos<Vector2i, Vector2i>>(Variant::OP_POSITIVE, Variant::VECTOR2I, Variant::NIL);
 	register_op<OperatorEvaluatorPos<Vector3, Vector3>>(Variant::OP_POSITIVE, Variant::VECTOR3, Variant::NIL);
 	register_op<OperatorEvaluatorPos<Vector3i, Vector3i>>(Variant::OP_POSITIVE, Variant::VECTOR3I, Variant::NIL);
-	register_op<OperatorEvaluatorPos<Quat, Quat>>(Variant::OP_POSITIVE, Variant::QUAT, Variant::NIL);
+	register_op<OperatorEvaluatorPos<Quaternion, Quaternion>>(Variant::OP_POSITIVE, Variant::QUATERNION, Variant::NIL);
 	register_op<OperatorEvaluatorPos<Plane, Plane>>(Variant::OP_POSITIVE, Variant::PLANE, Variant::NIL);
 	register_op<OperatorEvaluatorPos<Color, Color>>(Variant::OP_POSITIVE, Variant::COLOR, Variant::NIL);
 
@@ -1612,7 +1612,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorEqual<Vector3i, Vector3i>>(Variant::OP_EQUAL, Variant::VECTOR3I, Variant::VECTOR3I);
 	register_op<OperatorEvaluatorEqual<Transform2D, Transform2D>>(Variant::OP_EQUAL, Variant::TRANSFORM2D, Variant::TRANSFORM2D);
 	register_op<OperatorEvaluatorEqual<Plane, Plane>>(Variant::OP_EQUAL, Variant::PLANE, Variant::PLANE);
-	register_op<OperatorEvaluatorEqual<Quat, Quat>>(Variant::OP_EQUAL, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorEqual<Quaternion, Quaternion>>(Variant::OP_EQUAL, Variant::QUATERNION, Variant::QUATERNION);
 	register_op<OperatorEvaluatorEqual<::AABB, ::AABB>>(Variant::OP_EQUAL, Variant::AABB, Variant::AABB);
 	register_op<OperatorEvaluatorEqual<Basis, Basis>>(Variant::OP_EQUAL, Variant::BASIS, Variant::BASIS);
 	register_op<OperatorEvaluatorEqual<Transform3D, Transform3D>>(Variant::OP_EQUAL, Variant::TRANSFORM3D, Variant::TRANSFORM3D);
@@ -1658,7 +1658,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorNotEqual<Vector3i, Vector3i>>(Variant::OP_NOT_EQUAL, Variant::VECTOR3I, Variant::VECTOR3I);
 	register_op<OperatorEvaluatorNotEqual<Transform2D, Transform2D>>(Variant::OP_NOT_EQUAL, Variant::TRANSFORM2D, Variant::TRANSFORM2D);
 	register_op<OperatorEvaluatorNotEqual<Plane, Plane>>(Variant::OP_NOT_EQUAL, Variant::PLANE, Variant::PLANE);
-	register_op<OperatorEvaluatorNotEqual<Quat, Quat>>(Variant::OP_NOT_EQUAL, Variant::QUAT, Variant::QUAT);
+	register_op<OperatorEvaluatorNotEqual<Quaternion, Quaternion>>(Variant::OP_NOT_EQUAL, Variant::QUATERNION, Variant::QUATERNION);
 	register_op<OperatorEvaluatorNotEqual<::AABB, ::AABB>>(Variant::OP_NOT_EQUAL, Variant::AABB, Variant::AABB);
 	register_op<OperatorEvaluatorNotEqual<Basis, Basis>>(Variant::OP_NOT_EQUAL, Variant::BASIS, Variant::BASIS);
 	register_op<OperatorEvaluatorNotEqual<Transform3D, Transform3D>>(Variant::OP_NOT_EQUAL, Variant::TRANSFORM3D, Variant::TRANSFORM3D);
@@ -1849,7 +1849,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorInDictionaryHas<Vector3i>>(Variant::OP_IN, Variant::VECTOR3I, Variant::DICTIONARY);
 	register_op<OperatorEvaluatorInDictionaryHas<Transform2D>>(Variant::OP_IN, Variant::TRANSFORM2D, Variant::DICTIONARY);
 	register_op<OperatorEvaluatorInDictionaryHas<Plane>>(Variant::OP_IN, Variant::PLANE, Variant::DICTIONARY);
-	register_op<OperatorEvaluatorInDictionaryHas<Quat>>(Variant::OP_IN, Variant::QUAT, Variant::DICTIONARY);
+	register_op<OperatorEvaluatorInDictionaryHas<Quaternion>>(Variant::OP_IN, Variant::QUATERNION, Variant::DICTIONARY);
 	register_op<OperatorEvaluatorInDictionaryHas<::AABB>>(Variant::OP_IN, Variant::AABB, Variant::DICTIONARY);
 	register_op<OperatorEvaluatorInDictionaryHas<Basis>>(Variant::OP_IN, Variant::BASIS, Variant::DICTIONARY);
 	register_op<OperatorEvaluatorInDictionaryHas<Transform3D>>(Variant::OP_IN, Variant::TRANSFORM3D, Variant::DICTIONARY);
@@ -1886,7 +1886,7 @@ void Variant::_register_variant_operators() {
 	register_op<OperatorEvaluatorInArrayFind<Vector3i, Array>>(Variant::OP_IN, Variant::VECTOR3I, Variant::ARRAY);
 	register_op<OperatorEvaluatorInArrayFind<Transform2D, Array>>(Variant::OP_IN, Variant::TRANSFORM2D, Variant::ARRAY);
 	register_op<OperatorEvaluatorInArrayFind<Plane, Array>>(Variant::OP_IN, Variant::PLANE, Variant::ARRAY);
-	register_op<OperatorEvaluatorInArrayFind<Quat, Array>>(Variant::OP_IN, Variant::QUAT, Variant::ARRAY);
+	register_op<OperatorEvaluatorInArrayFind<Quaternion, Array>>(Variant::OP_IN, Variant::QUATERNION, Variant::ARRAY);
 	register_op<OperatorEvaluatorInArrayFind<::AABB, Array>>(Variant::OP_IN, Variant::AABB, Variant::ARRAY);
 	register_op<OperatorEvaluatorInArrayFind<Basis, Array>>(Variant::OP_IN, Variant::BASIS, Variant::ARRAY);
 	register_op<OperatorEvaluatorInArrayFind<Transform3D, Array>>(Variant::OP_IN, Variant::TRANSFORM3D, Variant::ARRAY);

core/variant/variant_parser.cpp

@@ -614,7 +614,7 @@ Error VariantParser::parse_value(Token &token, Variant &value, Stream *p_stream,
 			}
 
 			value = Plane(args[0], args[1], args[2], args[3]);
-		} else if (id == "Quat") {
+		} else if (id == "Quaternion" || id == "Quat") { // "Quat" kept for compatibility
 			Vector<real_t> args;
 			Error err = _parse_construct<real_t>(p_stream, args, line, r_err_str);
 			if (err) {
@@ -626,7 +626,7 @@ Error VariantParser::parse_value(Token &token, Variant &value, Stream *p_stream,
 				return ERR_PARSE_ERROR;
 			}
 
-			value = Quat(args[0], args[1], args[2], args[3]);
+			value = Quaternion(args[0], args[1], args[2], args[3]);
 		} else if (id == "AABB" || id == "Rect3") {
 			Vector<real_t> args;
 			Error err = _parse_construct<real_t>(p_stream, args, line, r_err_str);
@@ -1454,9 +1454,9 @@ Error VariantWriter::write(const Variant &p_variant, StoreStringFunc p_store_str
 			p_store_string_func(p_store_string_ud, "AABB( " + rtosfix(aabb.position.x) + ", " + rtosfix(aabb.position.y) + ", " + rtosfix(aabb.position.z) + ", " + rtosfix(aabb.size.x) + ", " + rtosfix(aabb.size.y) + ", " + rtosfix(aabb.size.z) + " )");
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			Quat quat = p_variant;
+			Quaternion quaternion = p_variant;
-			p_store_string_func(p_store_string_ud, "Quat( " + rtosfix(quat.x) + ", " + rtosfix(quat.y) + ", " + rtosfix(quat.z) + ", " + rtosfix(quat.w) + " )");
+			p_store_string_func(p_store_string_ud, "Quaternion( " + rtosfix(quaternion.x) + ", " + rtosfix(quaternion.y) + ", " + rtosfix(quaternion.z) + ", " + rtosfix(quaternion.w) + " )");
 
 		} break;
 		case Variant::TRANSFORM2D: {

core/variant/variant_setget.cpp

@@ -279,10 +279,10 @@ SETGET_NUMBER_STRUCT_CUSTOM(Plane, double, z, normal.z)
 SETGET_STRUCT(Plane, Vector3, normal)
 SETGET_NUMBER_STRUCT(Plane, double, d)
 
-SETGET_NUMBER_STRUCT(Quat, double, x)
+SETGET_NUMBER_STRUCT(Quaternion, double, x)
-SETGET_NUMBER_STRUCT(Quat, double, y)
+SETGET_NUMBER_STRUCT(Quaternion, double, y)
-SETGET_NUMBER_STRUCT(Quat, double, z)
+SETGET_NUMBER_STRUCT(Quaternion, double, z)
-SETGET_NUMBER_STRUCT(Quat, double, w)
+SETGET_NUMBER_STRUCT(Quaternion, double, w)
 
 SETGET_STRUCT_FUNC_INDEX(Basis, Vector3, x, set_axis, get_axis, 0)
 SETGET_STRUCT_FUNC_INDEX(Basis, Vector3, y, set_axis, get_axis, 1)
@@ -374,10 +374,10 @@ void register_named_setters_getters() {
 	REGISTER_MEMBER(Plane, d);
 	REGISTER_MEMBER(Plane, normal);
 
-	REGISTER_MEMBER(Quat, x);
+	REGISTER_MEMBER(Quaternion, x);
-	REGISTER_MEMBER(Quat, y);
+	REGISTER_MEMBER(Quaternion, y);
-	REGISTER_MEMBER(Quat, z);
+	REGISTER_MEMBER(Quaternion, z);
-	REGISTER_MEMBER(Quat, w);
+	REGISTER_MEMBER(Quaternion, w);
 
 	REGISTER_MEMBER(Basis, x);
 	REGISTER_MEMBER(Basis, y);
@@ -975,7 +975,7 @@ INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Vector2, double, real_t, 2)
 INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Vector2i, int64_t, int32_t, 2)
 INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Vector3, double, real_t, 3)
 INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Vector3i, int64_t, int32_t, 3)
-INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Quat, double, real_t, 4)
+INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Quaternion, double, real_t, 4)
 INDEXED_SETGET_STRUCT_BULTIN_NUMERIC(Color, double, float, 4)
 
 INDEXED_SETGET_STRUCT_BULTIN_ACCESSOR(Transform2D, Vector2, .elements, 3)
@@ -1037,7 +1037,7 @@ void register_indexed_setters_getters() {
 	REGISTER_INDEXED_MEMBER(Vector2i);
 	REGISTER_INDEXED_MEMBER(Vector3);
 	REGISTER_INDEXED_MEMBER(Vector3i);
-	REGISTER_INDEXED_MEMBER(Quat);
+	REGISTER_INDEXED_MEMBER(Quaternion);
 	REGISTER_INDEXED_MEMBER(Color);
 	REGISTER_INDEXED_MEMBER(Transform2D);
 	REGISTER_INDEXED_MEMBER(Basis);
@@ -2135,10 +2135,10 @@ void Variant::blend(const Variant &a, const Variant &b, float c, Variant &r_dst)
 			r_dst = ::AABB(ra->position + rb->position * c, ra->size + rb->size * c);
 		}
 			return;
-		case QUAT: {
+		case QUATERNION: {
-			Quat empty_rot;
+			Quaternion empty_rot;
-			const Quat *qa = reinterpret_cast<const Quat *>(a._data._mem);
+			const Quaternion *qa = reinterpret_cast<const Quaternion *>(a._data._mem);
-			const Quat *qb = reinterpret_cast<const Quat *>(b._data._mem);
+			const Quaternion *qb = reinterpret_cast<const Quaternion *>(b._data._mem);
 			r_dst = *qa * empty_rot.slerp(*qb, c);
 		}
 			return;
@@ -2295,8 +2295,8 @@ void Variant::interpolate(const Variant &a, const Variant &b, float c, Variant &
 			r_dst = a;
 		}
 			return;
-		case QUAT: {
+		case QUATERNION: {
-			r_dst = reinterpret_cast<const Quat *>(a._data._mem)->slerp(*reinterpret_cast<const Quat *>(b._data._mem), c);
+			r_dst = reinterpret_cast<const Quaternion *>(a._data._mem)->slerp(*reinterpret_cast<const Quaternion *>(b._data._mem), c);
 		}
 			return;
 		case AABB: {

doc/classes/@GlobalScope.xml

@@ -2596,8 +2596,8 @@
 		<constant name="TYPE_PLANE" value="12" enum="Variant.Type">
 			Variable is of type [Plane].
 		</constant>
-		<constant name="TYPE_QUAT" value="13" enum="Variant.Type">
+		<constant name="TYPE_QUATERNION" value="13" enum="Variant.Type">
-			Variable is of type [Quat].
+			Variable is of type [Quaternion].
 		</constant>
 		<constant name="TYPE_AABB" value="14" enum="Variant.Type">
 			Variable is of type [AABB].

doc/classes/Animation.xml

@@ -640,7 +640,7 @@
 			</argument>
 			<argument index="2" name="location" type="Vector3">
 			</argument>
-			<argument index="3" name="rotation" type="Quat">
+			<argument index="3" name="rotation" type="Quaternion">
 			</argument>
 			<argument index="4" name="scale" type="Vector3">
 			</argument>
@@ -656,7 +656,7 @@
 			<argument index="1" name="time_sec" type="float">
 			</argument>
 			<description>
-				Returns the interpolated value of a transform track at a given time (in seconds). An array consisting of 3 elements: position ([Vector3]), rotation ([Quat]) and scale ([Vector3]).
+				Returns the interpolated value of a transform track at a given time (in seconds). An array consisting of 3 elements: position ([Vector3]), rotation ([Quaternion]) and scale ([Vector3]).
 			</description>
 		</method>
 		<method name="value_track_get_key_indices" qualifiers="const">

doc/classes/Basis.xml

@@ -53,13 +53,13 @@
 			</argument>
 			<description>
 				Constructs a pure rotation basis matrix from the given Euler angles (in the YXZ convention: when *composing*, first Y, then X, and Z last), given in the vector format as (X angle, Y angle, Z angle).
-				Consider using the [Quat] constructor instead, which uses a quaternion instead of Euler angles.
+				Consider using the [Quaternion] constructor instead, which uses a quaternion instead of Euler angles.
 			</description>
 		</method>
 		<method name="Basis" qualifiers="constructor">
 			<return type="Basis">
 			</return>
-			<argument index="0" name="from" type="Quat">
+			<argument index="0" name="from" type="Quaternion">
 			</argument>
 			<description>
 				Constructs a pure rotation basis matrix from the given quaternion.
@@ -91,7 +91,7 @@
 			</return>
 			<description>
 				Returns the basis's rotation in the form of Euler angles (in the YXZ convention: when decomposing, first Z, then X, and Y last). The returned vector contains the rotation angles in the format (X angle, Y angle, Z angle).
-				Consider using the [method get_rotation_quat] method instead, which returns a [Quat] quaternion instead of Euler angles.
+				Consider using the [method get_rotation_quaternion] method instead, which returns a [Quaternion] quaternion instead of Euler angles.
 			</description>
 		</method>
 		<method name="get_orthogonal_index" qualifiers="const">
@@ -101,8 +101,8 @@
 				This function considers a discretization of rotations into 24 points on unit sphere, lying along the vectors (x,y,z) with each component being either -1, 0, or 1, and returns the index of the point best representing the orientation of the object. It is mainly used by the [GridMap] editor. For further details, refer to the Godot source code.
 			</description>
 		</method>
-		<method name="get_rotation_quat" qualifiers="const">
+		<method name="get_rotation_quaternion" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 				Returns the basis's rotation in the form of a quaternion. See [method get_euler] if you need Euler angles, but keep in mind quaternions should generally be preferred to Euler angles.

doc/classes/Quaternion.xml

@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<class name="Quat" version="4.0">
+<class name="Quaternion" version="4.0">
 	<brief_description>
 		Quaternion.
 	</brief_description>
 	<description>
 		A unit quaternion used for representing 3D rotations. Quaternions need to be normalized to be used for rotation.
-		It is similar to Basis, which implements matrix representation of rotations, and can be parametrized using both an axis-angle pair or Euler angles. Basis stores rotation, scale, and shearing, while Quat only stores rotation.
+		It is similar to Basis, which implements matrix representation of rotations, and can be parametrized using both an axis-angle pair or Euler angles. Basis stores rotation, scale, and shearing, while Quaternion only stores rotation.
 		Due to its compactness and the way it is stored in memory, certain operations (obtaining axis-angle and performing SLERP, in particular) are more efficient and robust against floating-point errors.
 	</description>
 	<tutorials>
@@ -13,24 +13,24 @@
 		<link title="Third Person Shooter Demo">https://godotengine.org/asset-library/asset/678</link>
 	</tutorials>
 	<methods>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 				Constructs a default-initialized quaternion with all components set to [code]0[/code].
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="from" type="Quat">
+			<argument index="0" name="from" type="Quaternion">
 			</argument>
 			<description>
-				Constructs a [Quat] as a copy of the given [Quat].
+				Constructs a [Quaternion] as a copy of the given [Quaternion].
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="arc_from" type="Vector3">
 			</argument>
@@ -39,8 +39,8 @@
 			<description>
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="axis" type="Vector3">
 			</argument>
@@ -50,8 +50,8 @@
 				Constructs a quaternion that will rotate around the given axis by the specified angle. The axis must be a normalized vector.
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="euler" type="Vector3">
 			</argument>
@@ -59,8 +59,8 @@
 				Constructs a quaternion that will perform a rotation specified by Euler angles (in the YXZ convention: when decomposing, first Z, then X, and Y last), given in the vector format as (X angle, Y angle, Z angle).
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="from" type="Basis">
 			</argument>
@@ -68,8 +68,8 @@
 				Constructs a quaternion from the given [Basis].
 			</description>
 		</method>
-		<method name="Quat" qualifiers="constructor">
+		<method name="Quaternion" qualifiers="constructor">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="x" type="float">
 			</argument>
@@ -84,13 +84,13 @@
 			</description>
 		</method>
 		<method name="cubic_slerp" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="b" type="Quat">
+			<argument index="0" name="b" type="Quaternion">
 			</argument>
-			<argument index="1" name="pre_a" type="Quat">
+			<argument index="1" name="pre_a" type="Quaternion">
 			</argument>
-			<argument index="2" name="post_b" type="Quat">
+			<argument index="2" name="post_b" type="Quaternion">
 			</argument>
 			<argument index="3" name="weight" type="float">
 			</argument>
@@ -101,7 +101,7 @@
 		<method name="dot" qualifiers="const">
 			<return type="float">
 			</return>
-			<argument index="0" name="with" type="Quat">
+			<argument index="0" name="with" type="Quaternion">
 			</argument>
 			<description>
 				Returns the dot product of two quaternions.
@@ -115,7 +115,7 @@
 			</description>
 		</method>
 		<method name="inverse" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 				Returns the inverse of the quaternion.
@@ -124,7 +124,7 @@
 		<method name="is_equal_approx" qualifiers="const">
 			<return type="bool">
 			</return>
-			<argument index="0" name="to" type="Quat">
+			<argument index="0" name="to" type="Quaternion">
 			</argument>
 			<description>
 				Returns [code]true[/code] if this quaternion and [code]quat[/code] are approximately equal, by running [method @GlobalScope.is_equal_approx] on each component.
@@ -152,7 +152,7 @@
 			</description>
 		</method>
 		<method name="normalized" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 				Returns a copy of the quaternion, normalized to unit length.
@@ -161,15 +161,15 @@
 		<method name="operator !=" qualifiers="operator">
 			<return type="bool">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>
@@ -183,7 +183,7 @@
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="right" type="float">
 			</argument>
@@ -191,7 +191,7 @@
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="right" type="int">
 			</argument>
@@ -199,35 +199,35 @@
 			</description>
 		</method>
 		<method name="operator +" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 			</description>
 		</method>
 		<method name="operator +" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>
 		</method>
 		<method name="operator -" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<description>
 			</description>
 		</method>
 		<method name="operator -" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>
 		</method>
 		<method name="operator /" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="right" type="float">
 			</argument>
@@ -235,7 +235,7 @@
 			</description>
 		</method>
 		<method name="operator /" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
 			<argument index="0" name="right" type="int">
 			</argument>
@@ -245,7 +245,7 @@
 		<method name="operator ==" qualifiers="operator">
 			<return type="bool">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>
@@ -259,9 +259,9 @@
 			</description>
 		</method>
 		<method name="slerp" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="to" type="Quat">
+			<argument index="0" name="to" type="Quaternion">
 			</argument>
 			<argument index="1" name="weight" type="float">
 			</argument>
@@ -271,9 +271,9 @@
 			</description>
 		</method>
 		<method name="slerpni" qualifiers="const">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="to" type="Quat">
+			<argument index="0" name="to" type="Quaternion">
 			</argument>
 			<argument index="1" name="weight" type="float">
 			</argument>
@@ -301,7 +301,7 @@
 		</member>
 	</members>
 	<constants>
-		<constant name="IDENTITY" value="Quat( 0, 0, 0, 1 )">
+		<constant name="IDENTITY" value="Quaternion( 0, 0, 0, 1 )">
 			The identity quaternion, representing no rotation. Equivalent to an identity [Basis] matrix. If a vector is transformed by an identity quaternion, it will not change.
 		</constant>
 	</constants>

doc/classes/Vector3.xml

@@ -286,7 +286,7 @@
 		<method name="operator *" qualifiers="operator">
 			<return type="Vector3">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 			</description>

doc/classes/float.xml

@@ -113,12 +113,12 @@
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
-				Multiplies each component of the [Quat] by the given [float].
+				Multiplies each component of the [Quaternion] by the given [float].
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">

doc/classes/int.xml

@@ -183,9 +183,9 @@
 			</description>
 		</method>
 		<method name="operator *" qualifiers="operator">
-			<return type="Quat">
+			<return type="Quaternion">
 			</return>
-			<argument index="0" name="right" type="Quat">
+			<argument index="0" name="right" type="Quaternion">
 			</argument>
 			<description>
 				Multiplies each component of the quaternion by the given integer.

editor/animation_track_editor.cpp

@@ -525,7 +525,7 @@ public:
 		switch (animation->track_get_type(track)) {
 			case Animation::TYPE_TRANSFORM3D: {
 				p_list->push_back(PropertyInfo(Variant::VECTOR3, "location"));
-				p_list->push_back(PropertyInfo(Variant::QUAT, "rotation"));
+				p_list->push_back(PropertyInfo(Variant::QUATERNION, "rotation"));
 				p_list->push_back(PropertyInfo(Variant::VECTOR3, "scale"));
 
 			} break;
@@ -1164,7 +1164,7 @@ public:
 			switch (animation->track_get_type(first_track)) {
 				case Animation::TYPE_TRANSFORM3D: {
 					p_list->push_back(PropertyInfo(Variant::VECTOR3, "location"));
-					p_list->push_back(PropertyInfo(Variant::QUAT, "rotation"));
+					p_list->push_back(PropertyInfo(Variant::QUATERNION, "rotation"));
 					p_list->push_back(PropertyInfo(Variant::VECTOR3, "scale"));
 				} break;
 				case Animation::TYPE_VALUE: {
@@ -3376,7 +3376,7 @@ void AnimationTrackEditor::_query_insert(const InsertData &p_id) {
 				case Variant::FLOAT:
 				case Variant::VECTOR2:
 				case Variant::VECTOR3:
-				case Variant::QUAT:
+				case Variant::QUATERNION:
 				case Variant::PLANE:
 				case Variant::COLOR: {
 					// Valid.
@@ -3845,7 +3845,7 @@ static Vector<String> _get_bezier_subindices_for_type(Variant::Type p_type, bool
 			subindices.push_back(":y");
 			subindices.push_back(":z");
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
 			subindices.push_back(":x");
 			subindices.push_back(":y");
 			subindices.push_back(":z");
@@ -3911,7 +3911,7 @@ AnimationTrackEditor::TrackIndices AnimationTrackEditor::_confirm_insert(InsertD
 						h.type == Variant::RECT2 ||
 						h.type == Variant::VECTOR3 ||
 						h.type == Variant::AABB ||
-						h.type == Variant::QUAT ||
+						h.type == Variant::QUATERNION ||
 						h.type == Variant::COLOR ||
 						h.type == Variant::PLANE ||
 						h.type == Variant::TRANSFORM2D ||
@@ -3950,7 +3950,7 @@ AnimationTrackEditor::TrackIndices AnimationTrackEditor::_confirm_insert(InsertD
 			Dictionary d;
 			d["location"] = tr.origin;
 			d["scale"] = tr.basis.get_scale();
-			d["rotation"] = Quat(tr.basis);
+			d["rotation"] = Quaternion(tr.basis);
 			value = d;
 		} break;
 		case Animation::TYPE_BEZIER: {
@@ -4394,7 +4394,7 @@ void AnimationTrackEditor::_new_track_node_selected(NodePath p_path) {
 			filter.push_back(Variant::FLOAT);
 			filter.push_back(Variant::VECTOR2);
 			filter.push_back(Variant::VECTOR3);
-			filter.push_back(Variant::QUAT);
+			filter.push_back(Variant::QUATERNION);
 			filter.push_back(Variant::PLANE);
 			filter.push_back(Variant::COLOR);
 
@@ -4464,7 +4464,7 @@ void AnimationTrackEditor::_new_track_property_selected(String p_name) {
 					h.type == Variant::RECT2 ||
 					h.type == Variant::VECTOR3 ||
 					h.type == Variant::AABB ||
-					h.type == Variant::QUAT ||
+					h.type == Variant::QUATERNION ||
 					h.type == Variant::COLOR ||
 					h.type == Variant::PLANE ||
 					h.type == Variant::TRANSFORM2D ||
@@ -4564,7 +4564,7 @@ void AnimationTrackEditor::_insert_key_from_track(float p_ofs, int p_track) {
 
 			Vector3 loc = xf.get_origin();
 			Vector3 scale = xf.basis.get_scale_local();
-			Quat rot = xf.basis;
+			Quaternion rot = xf.basis;
 
 			undo_redo->create_action(TTR("Add Transform Track Key"));
 			undo_redo->add_do_method(animation.ptr(), "transform_track_insert_key", p_track, p_ofs, loc, rot, scale);

editor/connections_dialog.cpp

@@ -203,8 +203,8 @@ void ConnectDialog::_add_bind() {
 		case Variant::PLANE:
 			value = Plane();
 			break;
-		case Variant::QUAT:
+		case Variant::QUATERNION:
-			value = Quat();
+			value = Quaternion();
 			break;
 		case Variant::AABB:
 			value = AABB();
@@ -443,7 +443,7 @@ ConnectDialog::ConnectDialog() {
 	type_list->add_item("Rect2", Variant::RECT2);
 	type_list->add_item("Vector3", Variant::VECTOR3);
 	type_list->add_item("Plane", Variant::PLANE);
-	type_list->add_item("Quat", Variant::QUAT);
+	type_list->add_item("Quaternion", Variant::QUATERNION);
 	type_list->add_item("AABB", Variant::AABB);
 	type_list->add_item("Basis", Variant::BASIS);
 	type_list->add_item("Transform", Variant::TRANSFORM3D);

editor/editor_properties.cpp

@@ -1761,14 +1761,14 @@ EditorPropertyPlane::EditorPropertyPlane(bool p_force_wide) {
 	setting = false;
 }
 
-///////////////////// QUAT /////////////////////////
+///////////////////// QUATERNION /////////////////////////
 
-void EditorPropertyQuat::_value_changed(double val, const String &p_name) {
+void EditorPropertyQuaternion::_value_changed(double val, const String &p_name) {
 	if (setting) {
 		return;
 	}
 
-	Quat p;
+	Quaternion p;
 	p.x = spin[0]->get_value();
 	p.y = spin[1]->get_value();
 	p.z = spin[2]->get_value();
@@ -1776,8 +1776,8 @@ void EditorPropertyQuat::_value_changed(double val, const String &p_name) {
 	emit_changed(get_edited_property(), p, p_name);
 }
 
-void EditorPropertyQuat::update_property() {
+void EditorPropertyQuaternion::update_property() {
-	Quat val = get_edited_object()->get(get_edited_property());
+	Quaternion val = get_edited_object()->get(get_edited_property());
 	setting = true;
 	spin[0]->set_value(val.x);
 	spin[1]->set_value(val.y);
@@ -1786,7 +1786,7 @@ void EditorPropertyQuat::update_property() {
 	setting = false;
 }
 
-void EditorPropertyQuat::_notification(int p_what) {
+void EditorPropertyQuaternion::_notification(int p_what) {
 	if (p_what == NOTIFICATION_ENTER_TREE || p_what == NOTIFICATION_THEME_CHANGED) {
 		Color base = get_theme_color("accent_color", "Editor");
 		for (int i = 0; i < 3; i++) {
@@ -1797,10 +1797,10 @@ void EditorPropertyQuat::_notification(int p_what) {
 	}
 }
 
-void EditorPropertyQuat::_bind_methods() {
+void EditorPropertyQuaternion::_bind_methods() {
 }
 
-void EditorPropertyQuat::setup(double p_min, double p_max, double p_step, bool p_no_slider) {
+void EditorPropertyQuaternion::setup(double p_min, double p_max, double p_step, bool p_no_slider) {
 	for (int i = 0; i < 4; i++) {
 		spin[i]->set_min(p_min);
 		spin[i]->set_max(p_max);
@@ -1811,7 +1811,7 @@ void EditorPropertyQuat::setup(double p_min, double p_max, double p_step, bool p
 	}
 }
 
-EditorPropertyQuat::EditorPropertyQuat() {
+EditorPropertyQuaternion::EditorPropertyQuaternion() {
 	bool horizontal = EDITOR_GET("interface/inspector/horizontal_vector_types_editing");
 
 	BoxContainer *bc;
@@ -1832,7 +1832,7 @@ EditorPropertyQuat::EditorPropertyQuat() {
 		spin[i]->set_label(desc[i]);
 		bc->add_child(spin[i]);
 		add_focusable(spin[i]);
-		spin[i]->connect("value_changed", callable_mp(this, &EditorPropertyQuat::_value_changed), varray(desc[i]));
+		spin[i]->connect("value_changed", callable_mp(this, &EditorPropertyQuaternion::_value_changed), varray(desc[i]));
 		if (horizontal) {
 			spin[i]->set_h_size_flags(SIZE_EXPAND_FILL);
 		}
@@ -3056,8 +3056,8 @@ bool EditorInspectorDefaultPlugin::parse_property(Object *p_object, Variant::Typ
 			editor->setup(min, max, step, hide_slider);
 			add_property_editor(p_path, editor);
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			EditorPropertyQuat *editor = memnew(EditorPropertyQuat);
+			EditorPropertyQuaternion *editor = memnew(EditorPropertyQuaternion);
 			double min = -65535, max = 65535, step = default_float_step;
 			bool hide_slider = true;
 

editor/editor_properties.h

@@ -465,8 +465,8 @@ public:
 	EditorPropertyPlane(bool p_force_wide = false);
 };
 
-class EditorPropertyQuat : public EditorProperty {
+class EditorPropertyQuaternion : public EditorProperty {
-	GDCLASS(EditorPropertyQuat, EditorProperty);
+	GDCLASS(EditorPropertyQuaternion, EditorProperty);
 	EditorSpinSlider *spin[4];
 	bool setting;
 	void _value_changed(double p_val, const String &p_name);
@@ -478,7 +478,7 @@ protected:
 public:
 	virtual void update_property() override;
 	void setup(double p_min, double p_max, double p_step, bool p_no_slider);
-	EditorPropertyQuat();
+	EditorPropertyQuaternion();
 };
 
 class EditorPropertyAABB : public EditorProperty {

editor/editor_properties_array_dict.cpp

@@ -850,8 +850,8 @@ void EditorPropertyDictionary::update_property() {
 					prop = editor;
 
 				} break;
-				case Variant::QUAT: {
+				case Variant::QUATERNION: {
-					EditorPropertyQuat *editor = memnew(EditorPropertyQuat);
+					EditorPropertyQuaternion *editor = memnew(EditorPropertyQuaternion);
 					editor->setup(-100000, 100000, 0.001, true);
 					prop = editor;
 

editor/import/editor_import_collada.cpp

@@ -1545,7 +1545,7 @@ void ColladaImport::create_animation(int p_clip, bool p_make_tracks_in_all_bones
 
 			Vector3 s = xform.basis.get_scale();
 			bool singular_matrix = Math::is_equal_approx(s.x, 0.0f) || Math::is_equal_approx(s.y, 0.0f) || Math::is_equal_approx(s.z, 0.0f);
-			Quat q = singular_matrix ? Quat() : xform.basis.get_rotation_quat();
+			Quaternion q = singular_matrix ? Quaternion() : xform.basis.get_rotation_quaternion();
 			Vector3 l = xform.origin;
 
 			animation->transform_track_insert_key(track, snapshots[i], l, q, s);
@@ -1596,7 +1596,7 @@ void ColladaImport::create_animation(int p_clip, bool p_make_tracks_in_all_bones
 
 			Vector3 s = xform.basis.get_scale();
 			bool singular_matrix = Math::is_equal_approx(s.x, 0.0f) || Math::is_equal_approx(s.y, 0.0f) || Math::is_equal_approx(s.z, 0.0f);
-			Quat q = singular_matrix ? Quat() : xform.basis.get_rotation_quat();
+			Quaternion q = singular_matrix ? Quaternion() : xform.basis.get_rotation_quaternion();
 			Vector3 l = xform.origin;
 
 			animation->transform_track_insert_key(track, 0, l, q, s);

editor/import/resource_importer_scene.cpp

@@ -857,7 +857,7 @@ void ResourceImporterScene::_create_clips(AnimationPlayer *anim, const Array &p_
 
 						if (kt > (from + 0.01) && k > 0) {
 							if (default_anim->track_get_type(j) == Animation::TYPE_TRANSFORM3D) {
-								Quat q;
+								Quaternion q;
 								Vector3 p;
 								Vector3 s;
 								default_anim->transform_track_interpolate(j, from, &p, &q, &s);
@@ -871,7 +871,7 @@ void ResourceImporterScene::_create_clips(AnimationPlayer *anim, const Array &p_
 					}
 
 					if (default_anim->track_get_type(j) == Animation::TYPE_TRANSFORM3D) {
-						Quat q;
+						Quaternion q;
 						Vector3 p;
 						Vector3 s;
 						default_anim->transform_track_get_key(j, k, &p, &q, &s);
@@ -885,7 +885,7 @@ void ResourceImporterScene::_create_clips(AnimationPlayer *anim, const Array &p_
 
 				if (dtrack != -1 && kt >= to) {
 					if (default_anim->track_get_type(j) == Animation::TYPE_TRANSFORM3D) {
-						Quat q;
+						Quaternion q;
 						Vector3 p;
 						Vector3 s;
 						default_anim->transform_track_interpolate(j, to, &p, &q, &s);
@@ -903,7 +903,7 @@ void ResourceImporterScene::_create_clips(AnimationPlayer *anim, const Array &p_
 				dtrack = new_anim->get_track_count() - 1;
 				new_anim->track_set_path(dtrack, default_anim->track_get_path(j));
 				if (default_anim->track_get_type(j) == Animation::TYPE_TRANSFORM3D) {
-					Quat q;
+					Quaternion q;
 					Vector3 p;
 					Vector3 s;
 					default_anim->transform_track_interpolate(j, from, &p, &q, &s);

editor/property_editor.cpp

@@ -727,13 +727,13 @@ bool CustomPropertyEditor::edit(Object *p_owner, const String &p_name, Variant::
 			value_editor[3]->set_text(String::num(plane.d));
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
 			field_names.push_back("x");
 			field_names.push_back("y");
 			field_names.push_back("z");
 			field_names.push_back("w");
 			config_value_editors(4, 4, 10, field_names);
-			Quat q = v;
+			Quaternion q = v;
 			value_editor[0]->set_text(String::num(q.x));
 			value_editor[1]->set_text(String::num(q.y));
 			value_editor[2]->set_text(String::num(q.z));
@@ -1513,8 +1513,8 @@ void CustomPropertyEditor::_modified(String p_string) {
 			_emit_changed_whole_or_field();
 
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			Quat q;
+			Quaternion q;
 			q.x = _parse_real_expression(value_editor[0]->get_text());
 			q.y = _parse_real_expression(value_editor[1]->get_text());
 			q.z = _parse_real_expression(value_editor[2]->get_text());
@@ -1635,7 +1635,7 @@ void CustomPropertyEditor::_focus_enter() {
 		case Variant::RECT2:
 		case Variant::VECTOR3:
 		case Variant::PLANE:
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 		case Variant::AABB:
 		case Variant::TRANSFORM2D:
 		case Variant::BASIS:
@@ -1661,7 +1661,7 @@ void CustomPropertyEditor::_focus_exit() {
 		case Variant::RECT2:
 		case Variant::VECTOR3:
 		case Variant::PLANE:
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 		case Variant::AABB:
 		case Variant::TRANSFORM2D:
 		case Variant::BASIS:

modules/fbx/data/pivot_transform.cpp

@@ -90,7 +90,7 @@ void PivotTransform::ReadTransformChain() {
 	if (ok) {
 		geometric_rotation = ImportUtils::EulerToQuaternion(rot, ImportUtils::deg2rad(GeometricRotation));
 	} else {
-		geometric_rotation = Quat();
+		geometric_rotation = Quaternion();
 	}
 
 	const Vector3 &GeometricTranslation = ImportUtils::safe_import_vector3(FBXDocParser::PropertyGet<Vector3>(props, "GeometricTranslation", ok));
@@ -100,7 +100,7 @@ void PivotTransform::ReadTransformChain() {
 		geometric_translation = Vector3(0, 0, 0);
 	}
 
-	if (geometric_rotation != Quat()) {
+	if (geometric_rotation != Quaternion()) {
 		print_error("geometric rotation is unsupported!");
 		//CRASH_COND(true);
 	}
@@ -116,7 +116,7 @@ void PivotTransform::ReadTransformChain() {
 	}
 }
 
-Transform3D PivotTransform::ComputeLocalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const {
+Transform3D PivotTransform::ComputeLocalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const {
 	Transform3D T, Roff, Rp, Soff, Sp, S;
 
 	// Here I assume this is the operation which needs done.
@@ -142,18 +142,18 @@ Transform3D PivotTransform::ComputeLocalTransform(Vector3 p_translation, Quat p_
 Transform3D PivotTransform::ComputeGlobalTransform(Transform3D t) const {
 	Vector3 pos = t.origin;
 	Vector3 scale = t.basis.get_scale();
-	Quat rot = t.basis.get_rotation_quat();
+	Quaternion rot = t.basis.get_rotation_quaternion();
 	return ComputeGlobalTransform(pos, rot, scale);
 }
 
 Transform3D PivotTransform::ComputeLocalTransform(Transform3D t) const {
 	Vector3 pos = t.origin;
 	Vector3 scale = t.basis.get_scale();
-	Quat rot = t.basis.get_rotation_quat();
+	Quaternion rot = t.basis.get_rotation_quaternion();
 	return ComputeLocalTransform(pos, rot, scale);
 }
 
-Transform3D PivotTransform::ComputeGlobalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const {
+Transform3D PivotTransform::ComputeGlobalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const {
 	Transform3D T, Roff, Rp, Soff, Sp, S;
 
 	// Here I assume this is the operation which needs done.
@@ -183,11 +183,11 @@ Transform3D PivotTransform::ComputeGlobalTransform(Vector3 p_translation, Quat p
 	}
 
 	Transform3D local_rotation_m, parent_global_rotation_m;
-	Quat parent_global_rotation = parent_global_xform.basis.get_rotation_quat();
+	Quaternion parent_global_rotation = parent_global_xform.basis.get_rotation_quaternion();
-	parent_global_rotation_m.basis.set_quat(parent_global_rotation);
+	parent_global_rotation_m.basis.set_quaternion(parent_global_rotation);
 	local_rotation_m = Rpre * R * Rpost;
 
-	//Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quat().normalized());
+	//Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quaternion().normalized());
 
 	Transform3D local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation;
 	Vector3 parent_translation = parent_global_xform.get_origin();
@@ -250,11 +250,11 @@ void PivotTransform::ComputePivotTransform() {
 	}
 
 	Transform3D local_rotation_m, parent_global_rotation_m;
-	Quat parent_global_rotation = parent_global_xform.basis.get_rotation_quat();
+	Quaternion parent_global_rotation = parent_global_xform.basis.get_rotation_quaternion();
-	parent_global_rotation_m.basis.set_quat(parent_global_rotation);
+	parent_global_rotation_m.basis.set_quaternion(parent_global_rotation);
 	local_rotation_m = Rpre * R * Rpost;
 
-	//Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quat().normalized());
+	//Basis parent_global_rotation = Basis(parent_global_xform.get_basis().get_rotation_quaternion().normalized());
 
 	Transform3D local_shear_scaling, parent_shear_scaling, parent_shear_rotation, parent_shear_translation;
 	Vector3 parent_translation = parent_global_xform.get_origin();

modules/fbx/data/pivot_transform.h

@@ -58,10 +58,10 @@ enum TransformationComp {
 struct PivotTransform : Reference, ModelAbstraction {
 	// at the end we want to keep geometric_ everything, post and pre rotation
 	// these are used during animation data processing / keyframe ingestion the rest can be simplified down / out.
-	Quat pre_rotation = Quat();
+	Quaternion pre_rotation = Quaternion();
-	Quat post_rotation = Quat();
+	Quaternion post_rotation = Quaternion();
-	Quat rotation = Quat();
+	Quaternion rotation = Quaternion();
-	Quat geometric_rotation = Quat();
+	Quaternion geometric_rotation = Quaternion();
 	Vector3 rotation_pivot = Vector3();
 	Vector3 rotation_offset = Vector3();
 	Vector3 scaling_offset = Vector3(1.0, 1.0, 1.0);
@@ -87,8 +87,8 @@ struct PivotTransform : Reference, ModelAbstraction {
 
 	Transform3D ComputeGlobalTransform(Transform3D t) const;
 	Transform3D ComputeLocalTransform(Transform3D t) const;
-	Transform3D ComputeGlobalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const;
+	Transform3D ComputeGlobalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const;
-	Transform3D ComputeLocalTransform(Vector3 p_translation, Quat p_rotation, Vector3 p_scaling) const;
+	Transform3D ComputeLocalTransform(Vector3 p_translation, Quaternion p_rotation, Vector3 p_scaling) const;
 
 	/* Extract into xforms and calculate once */
 	void ComputePivotTransform();

modules/fbx/editor_scene_importer_fbx.cpp

@@ -258,24 +258,24 @@ struct EditorSceneImporterAssetImportInterpolate {
 
 //thank you for existing, partial specialization
 template <>
-struct EditorSceneImporterAssetImportInterpolate<Quat> {
+struct EditorSceneImporterAssetImportInterpolate<Quaternion> {
-	Quat lerp(const Quat &a, const Quat &b, float c) const {
+	Quaternion lerp(const Quaternion &a, const Quaternion &b, float c) const {
-		ERR_FAIL_COND_V(!a.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!a.is_normalized(), Quaternion());
-		ERR_FAIL_COND_V(!b.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!b.is_normalized(), Quaternion());
 
 		return a.slerp(b, c).normalized();
 	}
 
-	Quat catmull_rom(const Quat &p0, const Quat &p1, const Quat &p2, const Quat &p3, float c) {
+	Quaternion catmull_rom(const Quaternion &p0, const Quaternion &p1, const Quaternion &p2, const Quaternion &p3, float c) {
-		ERR_FAIL_COND_V(!p1.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!p1.is_normalized(), Quaternion());
-		ERR_FAIL_COND_V(!p2.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!p2.is_normalized(), Quaternion());
 
 		return p1.slerp(p2, c).normalized();
 	}
 
-	Quat bezier(Quat start, Quat control_1, Quat control_2, Quat end, float t) {
+	Quaternion bezier(Quaternion start, Quaternion control_1, Quaternion control_2, Quaternion end, float t) {
-		ERR_FAIL_COND_V(!start.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!start.is_normalized(), Quaternion());
-		ERR_FAIL_COND_V(!end.is_normalized(), Quat());
+		ERR_FAIL_COND_V(!end.is_normalized(), Quaternion());
 
 		return start.slerp(end, t).normalized();
 	}
@@ -888,7 +888,7 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 					// we need to know what object the curves are for.
 					// we need the target ID and the target name for the track reduction.
 
-					FBXDocParser::Model::RotOrder quat_rotation_order = FBXDocParser::Model::RotOrder_EulerXYZ;
+					FBXDocParser::Model::RotOrder quaternion_rotation_order = FBXDocParser::Model::RotOrder_EulerXYZ;
 
 					// T:: R:: S:: Visible:: Custom::
 					for (const FBXDocParser::AnimationCurveNode *curve_node : node_list) {
@@ -910,7 +910,7 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 							continue;
 						} else {
 							//print_verbose("[doc] applied rotation order: " + itos(target->RotationOrder()));
-							quat_rotation_order = target->RotationOrder();
+							quaternion_rotation_order = target->RotationOrder();
 						}
 
 						uint64_t target_id = target->ID();
@@ -1086,7 +1086,7 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 						Vector<float> pos_times;
 						Vector<Vector3> scale_values;
 						Vector<float> scale_times;
-						Vector<Quat> rot_values;
+						Vector<Quaternion> rot_values;
 						Vector<float> rot_times;
 
 						double max_duration = 0;
@@ -1122,8 +1122,8 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 						bool got_pre = false;
 						bool got_post = false;
 
-						Quat post_rotation;
+						Quaternion post_rotation;
-						Quat pre_rotation;
+						Quaternion pre_rotation;
 
 						// Rotation matrix
 						const Vector3 &PreRotation = FBXDocParser::PropertyGet<Vector3>(props, "PreRotation", got_pre);
@@ -1137,24 +1137,24 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 							post_rotation = ImportUtils::EulerToQuaternion(rot_order, ImportUtils::deg2rad(PostRotation));
 						}
 
-						Quat lastQuat = Quat();
+						Quaternion lastQuaternion = Quaternion();
 
 						for (std::pair<int64_t, Vector3> rotation_key : rotation_keys.keyframes) {
 							double animation_track_time = CONVERT_FBX_TIME(rotation_key.first);
 
 							//print_verbose("euler rotation key: " + rotation_key.second);
-							Quat rot_key_value = ImportUtils::EulerToQuaternion(quat_rotation_order, ImportUtils::deg2rad(rotation_key.second));
+							Quaternion rot_key_value = ImportUtils::EulerToQuaternion(quaternion_rotation_order, ImportUtils::deg2rad(rotation_key.second));
 
-							if (lastQuat != Quat() && rot_key_value.dot(lastQuat) < 0) {
+							if (lastQuaternion != Quaternion() && rot_key_value.dot(lastQuaternion) < 0) {
 								rot_key_value.x = -rot_key_value.x;
 								rot_key_value.y = -rot_key_value.y;
 								rot_key_value.z = -rot_key_value.z;
 								rot_key_value.w = -rot_key_value.w;
 							}
 							// pre_post rotation possibly could fix orientation
-							Quat final_rotation = pre_rotation * rot_key_value * post_rotation;
+							Quaternion final_rotation = pre_rotation * rot_key_value * post_rotation;
 
-							lastQuat = final_rotation;
+							lastQuaternion = final_rotation;
 
 							if (animation_track_time > max_duration) {
 								max_duration = animation_track_time;
@@ -1182,13 +1182,13 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 						}
 
 						const Vector3 def_pos = translation_keys.has_default ? (translation_keys.default_value * state.scale) : bone_rest.origin;
-						const Quat def_rot = rotation_keys.has_default ? ImportUtils::EulerToQuaternion(quat_rotation_order, ImportUtils::deg2rad(rotation_keys.default_value)) : bone_rest.basis.get_rotation_quat();
+						const Quaternion def_rot = rotation_keys.has_default ? ImportUtils::EulerToQuaternion(quaternion_rotation_order, ImportUtils::deg2rad(rotation_keys.default_value)) : bone_rest.basis.get_rotation_quaternion();
 						const Vector3 def_scale = scale_keys.has_default ? scale_keys.default_value : bone_rest.basis.get_scale();
 						print_verbose("track defaults: p(" + def_pos + ") s(" + def_scale + ") r(" + def_rot + ")");
 
 						while (true) {
 							Vector3 pos = def_pos;
-							Quat rot = def_rot;
+							Quaternion rot = def_rot;
 							Vector3 scale = def_scale;
 
 							if (pos_values.size()) {
@@ -1197,7 +1197,7 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 							}
 
 							if (rot_values.size()) {
-								rot = _interpolate_track<Quat>(rot_times, rot_values, time,
+								rot = _interpolate_track<Quaternion>(rot_times, rot_values, time,
 										AssetImportAnimation::INTERP_LINEAR);
 							}
 
@@ -1209,12 +1209,12 @@ Node3D *EditorSceneImporterFBX::_generate_scene(
 							// node animations must also include pivots
 							if (skeleton_bone >= 0) {
 								Transform3D xform = Transform3D();
-								xform.basis.set_quat_scale(rot, scale);
+								xform.basis.set_quaternion_scale(rot, scale);
 								xform.origin = pos;
 								const Transform3D t = bone_rest.affine_inverse() * xform;
 
 								// populate	this again
-								rot = t.basis.get_rotation_quat();
+								rot = t.basis.get_rotation_quaternion();
 								rot.normalize();
 								scale = t.basis.get_scale();
 								pos = t.origin;

modules/fbx/tools/import_utils.cpp

@@ -80,7 +80,7 @@ Basis ImportUtils::EulerToBasis(FBXDocParser::Model::RotOrder mode, const Vector
 	return ret;
 }
 
-Quat ImportUtils::EulerToQuaternion(FBXDocParser::Model::RotOrder mode, const Vector3 &p_rotation) {
+Quaternion ImportUtils::EulerToQuaternion(FBXDocParser::Model::RotOrder mode, const Vector3 &p_rotation) {
 	return ImportUtils::EulerToBasis(mode, p_rotation);
 }
 
@@ -117,7 +117,7 @@ Vector3 ImportUtils::BasisToEuler(FBXDocParser::Model::RotOrder mode, const Basi
 	}
 }
 
-Vector3 ImportUtils::QuaternionToEuler(FBXDocParser::Model::RotOrder mode, const Quat &p_rotation) {
+Vector3 ImportUtils::QuaternionToEuler(FBXDocParser::Model::RotOrder mode, const Quaternion &p_rotation) {
 	return BasisToEuler(mode, p_rotation);
 }
 

modules/fbx/tools/import_utils.h

@@ -56,13 +56,13 @@ public:
 	static Basis EulerToBasis(FBXDocParser::Model::RotOrder mode, const Vector3 &p_rotation);
 
 	/// Converts rotation order vector (in rad) to quaternion.
-	static Quat EulerToQuaternion(FBXDocParser::Model::RotOrder mode, const Vector3 &p_rotation);
+	static Quaternion EulerToQuaternion(FBXDocParser::Model::RotOrder mode, const Vector3 &p_rotation);
 
 	/// Converts basis into rotation order vector (in rad).
 	static Vector3 BasisToEuler(FBXDocParser::Model::RotOrder mode, const Basis &p_rotation);
 
 	/// Converts quaternion into rotation order vector (in rad).
-	static Vector3 QuaternionToEuler(FBXDocParser::Model::RotOrder mode, const Quat &p_rotation);
+	static Vector3 QuaternionToEuler(FBXDocParser::Model::RotOrder mode, const Quaternion &p_rotation);
 
 	static void debug_xform(String name, const Transform3D &t) {
 		print_verbose(name + " " + t.origin + " rotation: " + (t.basis.get_euler() * (180 / Math_PI)));

modules/gdnative/gdnative/quaternion.cpp

@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  quat.cpp                                                             */
+/*  quaternion.cpp                                                       */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,31 +28,31 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#include "gdnative/quat.h"
+#include "gdnative/quaternion.h"
 
-#include "core/math/quat.h"
+#include "core/math/quaternion.h"
 
-static_assert(sizeof(godot_quat) == sizeof(Quat), "Quat size mismatch");
+static_assert(sizeof(godot_quaternion) == sizeof(Quaternion), "Quaternion size mismatch");
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-void GDAPI godot_quat_new(godot_quat *p_self) {
+void GDAPI godot_quaternion_new(godot_quaternion *p_self) {
-	memnew_placement(p_self, Quat);
+	memnew_placement(p_self, Quaternion);
 }
 
-void GDAPI godot_quat_new_copy(godot_quat *r_dest, const godot_quat *p_src) {
+void GDAPI godot_quaternion_new_copy(godot_quaternion *r_dest, const godot_quaternion *p_src) {
-	memnew_placement(r_dest, Quat(*(Quat *)p_src));
+	memnew_placement(r_dest, Quaternion(*(Quaternion *)p_src));
 }
 
-godot_real_t GDAPI *godot_quat_operator_index(godot_quat *p_self, godot_int p_index) {
+godot_real_t GDAPI *godot_quaternion_operator_index(godot_quaternion *p_self, godot_int p_index) {
-	Quat *self = (Quat *)p_self;
+	Quaternion *self = (Quaternion *)p_self;
 	return (godot_real_t *)&self->operator[](p_index);
 }
 
-const godot_real_t GDAPI *godot_quat_operator_index_const(const godot_quat *p_self, godot_int p_index) {
+const godot_real_t GDAPI *godot_quaternion_operator_index_const(const godot_quaternion *p_self, godot_int p_index) {
-	const Quat *self = (const Quat *)p_self;
+	const Quaternion *self = (const Quaternion *)p_self;
 	return (const godot_real_t *)&self->operator[](p_index);
 }
 

modules/gdnative/gdnative/variant.cpp

@@ -143,10 +143,10 @@ void GDAPI godot_variant_new_plane(godot_variant *r_dest, const godot_plane *p_p
 	memnew_placement_custom(dest, Variant, Variant(*plane));
 }
 
-void GDAPI godot_variant_new_quat(godot_variant *r_dest, const godot_quat *p_quat) {
+void GDAPI godot_variant_new_quaternion(godot_variant *r_dest, const godot_quaternion *p_quaternion) {
 	Variant *dest = (Variant *)r_dest;
-	const Quat *quat = (const Quat *)p_quat;
+	const Quaternion *quaternion = (const Quaternion *)p_quaternion;
-	memnew_placement_custom(dest, Variant, Variant(*quat));
+	memnew_placement_custom(dest, Variant, Variant(*quaternion));
 }
 
 void GDAPI godot_variant_new_aabb(godot_variant *r_dest, const godot_aabb *p_aabb) {
@@ -378,10 +378,10 @@ godot_plane GDAPI godot_variant_as_plane(const godot_variant *p_self) {
 	return raw_dest;
 }
 
-godot_quat GDAPI godot_variant_as_quat(const godot_variant *p_self) {
+godot_quaternion GDAPI godot_variant_as_quaternion(const godot_variant *p_self) {
-	godot_quat raw_dest;
+	godot_quaternion raw_dest;
 	const Variant *self = (const Variant *)p_self;
-	Quat *dest = (Quat *)&raw_dest;
+	Quaternion *dest = (Quaternion *)&raw_dest;
 	*dest = *self;
 	return raw_dest;
 }

modules/gdnative/gdnative_api.json

@@ -469,7 +469,7 @@
 				]
 			},
 			{
-				"name": "godot_variant_new_quat",
+				"name": "godot_variant_new_quaternion",
 				"return_type": "void",
 				"arguments": [
 					[
@@ -477,8 +477,8 @@
 						"r_dest"
 					],
 					[
-						"const godot_quat *",
+						"const godot_quaternion *",
-						"p_quat"
+						"p_quaternion"
 					]
 				]
 			},
@@ -893,8 +893,8 @@
 				]
 			},
 			{
-				"name": "godot_variant_as_quat",
+				"name": "godot_variant_as_quaternion",
-				"return_type": "godot_quat",
+				"return_type": "godot_quaternion",
 				"arguments": [
 					[
 						"const godot_variant *",
@@ -3866,35 +3866,35 @@
 				]
 			},
 			{
-				"name": "godot_quat_new",
+				"name": "godot_quaternion_new",
 				"return_type": "void",
 				"arguments": [
 					[
-						"godot_quat *",
+						"godot_quaternion *",
 						"p_self"
 					]
 				]
 			},
 			{
-				"name": "godot_quat_new_copy",
+				"name": "godot_quaternion_new_copy",
 				"return_type": "void",
 				"arguments": [
 					[
-						"godot_quat *",
+						"godot_quaternion *",
 						"r_dest"
 					],
 					[
-						"const godot_quat *",
+						"const godot_quaternion *",
 						"p_src"
 					]
 				]
 			},
 			{
-				"name": "godot_quat_operator_index",
+				"name": "godot_quaternion_operator_index",
 				"return_type": "godot_real_t *",
 				"arguments": [
 					[
-						"godot_quat *",
+						"godot_quaternion *",
 						"p_self"
 					],
 					[
@@ -3904,11 +3904,11 @@
 				]
 			},
 			{
-				"name": "godot_quat_operator_index_const",
+				"name": "godot_quaternion_operator_index_const",
 				"return_type": "const godot_real_t *",
 				"arguments": [
 					[
-						"const godot_quat *",
+						"const godot_quaternion *",
 						"p_self"
 					],
 					[

modules/gdnative/include/gdnative/gdnative.h

@@ -149,9 +149,9 @@ typedef void godot_object;
 
 #include <gdnative/plane.h>
 
-/////// Quat
+/////// Quaternion
 
-#include <gdnative/quat.h>
+#include <gdnative/quaternion.h>
 
 /////// AABB
 

modules/gdnative/include/gdnative/quaternion.h

@@ -1,5 +1,5 @@
 /*************************************************************************/
-/*  quat.h                                                               */
+/*  quaternion.h                                                         */
 /*************************************************************************/
 /*                       This file is part of:                           */
 /*                           GODOT ENGINE                                */
@@ -28,8 +28,8 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
-#ifndef GODOT_QUAT_H
+#ifndef GODOT_QUATERNION_H
-#define GODOT_QUAT_H
+#define GODOT_QUATERNION_H
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,24 +37,24 @@ extern "C" {
 
 #include <gdnative/math_defs.h>
 
-#define GODOT_QUAT_SIZE (sizeof(godot_real_t) * 4)
+#define GODOT_QUATERNION_SIZE (sizeof(godot_real_t) * 4)
 
-#ifndef GODOT_CORE_API_GODOT_QUAT_TYPE_DEFINED
+#ifndef GODOT_CORE_API_GODOT_QUATERNION_TYPE_DEFINED
-#define GODOT_CORE_API_GODOT_QUAT_TYPE_DEFINED
+#define GODOT_CORE_API_GODOT_QUATERNION_TYPE_DEFINED
 typedef struct {
-	uint8_t _dont_touch_that[GODOT_QUAT_SIZE];
+	uint8_t _dont_touch_that[GODOT_QUATERNION_SIZE];
-} godot_quat;
+} godot_quaternion;
 #endif
 
 #include <gdnative/gdnative.h>
 
-void GDAPI godot_quat_new(godot_quat *p_self);
+void GDAPI godot_quaternion_new(godot_quaternion *p_self);
-void GDAPI godot_quat_new_copy(godot_quat *r_dest, const godot_quat *p_src);
+void GDAPI godot_quaternion_new_copy(godot_quaternion *r_dest, const godot_quaternion *p_src);
-godot_real_t GDAPI *godot_quat_operator_index(godot_quat *p_self, godot_int p_index);
+godot_real_t GDAPI *godot_quaternion_operator_index(godot_quaternion *p_self, godot_int p_index);
-const godot_real_t GDAPI *godot_quat_operator_index_const(const godot_quat *p_self, godot_int p_index);
+const godot_real_t GDAPI *godot_quaternion_operator_index_const(const godot_quaternion *p_self, godot_int p_index);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif // GODOT_QUAT_H
+#endif // GODOT_QUATERNION_H

modules/gdnative/include/gdnative/variant.h

@@ -56,7 +56,7 @@ typedef enum godot_variant_type {
 	GODOT_VARIANT_TYPE_VECTOR3I,
 	GODOT_VARIANT_TYPE_TRANSFORM2D,
 	GODOT_VARIANT_TYPE_PLANE,
-	GODOT_VARIANT_TYPE_QUAT,
+	GODOT_VARIANT_TYPE_QUATERNION,
 	GODOT_VARIANT_TYPE_AABB,
 	GODOT_VARIANT_TYPE_BASIS,
 	GODOT_VARIANT_TYPE_TRANSFORM3D,
@@ -177,7 +177,7 @@ typedef void (*godot_ptr_utility_function)(void *r_return, const void **p_argume
 #include <gdnative/node_path.h>
 #include <gdnative/packed_arrays.h>
 #include <gdnative/plane.h>
-#include <gdnative/quat.h>
+#include <gdnative/quaternion.h>
 #include <gdnative/rect2.h>
 #include <gdnative/rid.h>
 #include <gdnative/signal.h>
@@ -208,7 +208,7 @@ void GDAPI godot_variant_new_vector3(godot_variant *r_dest, const godot_vector3
 void GDAPI godot_variant_new_vector3i(godot_variant *r_dest, const godot_vector3i *p_v3);
 void GDAPI godot_variant_new_transform2d(godot_variant *r_dest, const godot_transform2d *p_t2d);
 void GDAPI godot_variant_new_plane(godot_variant *r_dest, const godot_plane *p_plane);
-void GDAPI godot_variant_new_quat(godot_variant *r_dest, const godot_quat *p_quat);
+void GDAPI godot_variant_new_quaternion(godot_variant *r_dest, const godot_quaternion *p_quaternion);
 void GDAPI godot_variant_new_aabb(godot_variant *r_dest, const godot_aabb *p_aabb);
 void GDAPI godot_variant_new_basis(godot_variant *r_dest, const godot_basis *p_basis);
 void GDAPI godot_variant_new_transform3d(godot_variant *r_dest, const godot_transform3d *p_trans);
@@ -243,7 +243,7 @@ godot_vector3 GDAPI godot_variant_as_vector3(const godot_variant *p_self);
 godot_vector3i GDAPI godot_variant_as_vector3i(const godot_variant *p_self);
 godot_transform2d GDAPI godot_variant_as_transform2d(const godot_variant *p_self);
 godot_plane GDAPI godot_variant_as_plane(const godot_variant *p_self);
-godot_quat GDAPI godot_variant_as_quat(const godot_variant *p_self);
+godot_quaternion GDAPI godot_variant_as_quaternion(const godot_variant *p_self);
 godot_aabb GDAPI godot_variant_as_aabb(const godot_variant *p_self);
 godot_basis GDAPI godot_variant_as_basis(const godot_variant *p_self);
 godot_transform3d GDAPI godot_variant_as_transform3d(const godot_variant *p_self);

modules/gdscript/gdscript_analyzer.cpp

@@ -2825,7 +2825,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri
 							case Variant::RECT2:
 							case Variant::RECT2I:
 							case Variant::PLANE:
-							case Variant::QUAT:
+							case Variant::QUATERNION:
 							case Variant::AABB:
 							case Variant::OBJECT:
 								error = index_type.builtin_type != Variant::STRING;
@@ -2904,7 +2904,7 @@ void GDScriptAnalyzer::reduce_subscript(GDScriptParser::SubscriptNode *p_subscri
 					case Variant::PACKED_FLOAT64_ARRAY:
 					case Variant::VECTOR2:
 					case Variant::VECTOR3:
-					case Variant::QUAT:
+					case Variant::QUATERNION:
 						result_type.builtin_type = Variant::FLOAT;
 						break;
 					// Return Color.

modules/gdscript/gdscript_byte_codegen.cpp

@@ -85,7 +85,7 @@ uint32_t GDScriptByteCodeGenerator::add_temporary(const GDScriptDataType &p_type
 				case Variant::VECTOR3I:
 				case Variant::TRANSFORM2D:
 				case Variant::PLANE:
-				case Variant::QUAT:
+				case Variant::QUATERNION:
 				case Variant::AABB:
 				case Variant::BASIS:
 				case Variant::TRANSFORM3D:
@@ -458,8 +458,8 @@ void GDScriptByteCodeGenerator::write_type_adjust(const Address &p_target, Varia
 		case Variant::PLANE:
 			append(GDScriptFunction::OPCODE_TYPE_ADJUST_PLANE, 1);
 			break;
-		case Variant::QUAT:
+		case Variant::QUATERNION:
-			append(GDScriptFunction::OPCODE_TYPE_ADJUST_QUAT, 1);
+			append(GDScriptFunction::OPCODE_TYPE_ADJUST_QUATERNION, 1);
 			break;
 		case Variant::AABB:
 			append(GDScriptFunction::OPCODE_TYPE_ADJUST_AABB, 1);
@@ -1105,7 +1105,7 @@ void GDScriptByteCodeGenerator::write_call_ptrcall(const Address &p_target, cons
 			CASE_TYPE(STRING_NAME);
 			CASE_TYPE(NODE_PATH);
 			CASE_TYPE(RID);
-			CASE_TYPE(QUAT);
+			CASE_TYPE(QUATERNION);
 			CASE_TYPE(OBJECT);
 			CASE_TYPE(CALLABLE);
 			CASE_TYPE(SIGNAL);

modules/gdscript/gdscript_disassembler.cpp

@@ -625,7 +625,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				DISASSEMBLE_PTRCALL(STRING_NAME);
 				DISASSEMBLE_PTRCALL(NODE_PATH);
 				DISASSEMBLE_PTRCALL(RID);
-				DISASSEMBLE_PTRCALL(QUAT);
+				DISASSEMBLE_PTRCALL(QUATERNION);
 				DISASSEMBLE_PTRCALL(OBJECT);
 				DISASSEMBLE_PTRCALL(CALLABLE);
 				DISASSEMBLE_PTRCALL(SIGNAL);
@@ -957,7 +957,7 @@ void GDScriptFunction::disassemble(const Vector<String> &p_code_lines) const {
 				DISASSEMBLE_TYPE_ADJUST(VECTOR3I);
 				DISASSEMBLE_TYPE_ADJUST(TRANSFORM2D);
 				DISASSEMBLE_TYPE_ADJUST(PLANE);
-				DISASSEMBLE_TYPE_ADJUST(QUAT);
+				DISASSEMBLE_TYPE_ADJUST(QUATERNION);
 				DISASSEMBLE_TYPE_ADJUST(AABB);
 				DISASSEMBLE_TYPE_ADJUST(BASIS);
 				DISASSEMBLE_TYPE_ADJUST(TRANSFORM);

modules/gdscript/gdscript_function.h

@@ -278,7 +278,7 @@ public:
 		OPCODE_CALL_PTRCALL_VECTOR3I,
 		OPCODE_CALL_PTRCALL_TRANSFORM2D,
 		OPCODE_CALL_PTRCALL_PLANE,
-		OPCODE_CALL_PTRCALL_QUAT,
+		OPCODE_CALL_PTRCALL_QUATERNION,
 		OPCODE_CALL_PTRCALL_AABB,
 		OPCODE_CALL_PTRCALL_BASIS,
 		OPCODE_CALL_PTRCALL_TRANSFORM3D,
@@ -365,7 +365,7 @@ public:
 		OPCODE_TYPE_ADJUST_VECTOR3I,
 		OPCODE_TYPE_ADJUST_TRANSFORM2D,
 		OPCODE_TYPE_ADJUST_PLANE,
-		OPCODE_TYPE_ADJUST_QUAT,
+		OPCODE_TYPE_ADJUST_QUATERNION,
 		OPCODE_TYPE_ADJUST_AABB,
 		OPCODE_TYPE_ADJUST_BASIS,
 		OPCODE_TYPE_ADJUST_TRANSFORM,

modules/gdscript/gdscript_parser.cpp

@@ -61,7 +61,7 @@ Variant::Type GDScriptParser::get_builtin_type(const StringName &p_type) {
 		builtin_types["Vector3i"] = Variant::VECTOR3I;
 		builtin_types["AABB"] = Variant::AABB;
 		builtin_types["Plane"] = Variant::PLANE;
-		builtin_types["Quat"] = Variant::QUAT;
+		builtin_types["Quaternion"] = Variant::QUATERNION;
 		builtin_types["Basis"] = Variant::BASIS;
 		builtin_types["Transform"] = Variant::TRANSFORM3D;
 		builtin_types["Color"] = Variant::COLOR;

modules/gdscript/gdscript_vm.cpp

@@ -166,7 +166,7 @@ void (*type_init_function_table[])(Variant *) = {
 	&VariantInitializer<Vector3i>::init, // VECTOR3I.
 	&VariantInitializer<Transform2D>::init, // TRANSFORM2D.
 	&VariantInitializer<Plane>::init, // PLANE.
-	&VariantInitializer<Quat>::init, // QUAT.
+	&VariantInitializer<Quaternion>::init, // QUATERNION.
 	&VariantInitializer<AABB>::init, // AABB.
 	&VariantInitializer<Basis>::init, // BASIS.
 	&VariantInitializer<Transform3D>::init, // TRANSFORM3D.
@@ -248,7 +248,7 @@ void (*type_init_function_table[])(Variant *) = {
 		&&OPCODE_CALL_PTRCALL_VECTOR3I,              \
 		&&OPCODE_CALL_PTRCALL_TRANSFORM2D,           \
 		&&OPCODE_CALL_PTRCALL_PLANE,                 \
-		&&OPCODE_CALL_PTRCALL_QUAT,                  \
+		&&OPCODE_CALL_PTRCALL_QUATERNION,            \
 		&&OPCODE_CALL_PTRCALL_AABB,                  \
 		&&OPCODE_CALL_PTRCALL_BASIS,                 \
 		&&OPCODE_CALL_PTRCALL_TRANSFORM3D,           \
@@ -335,7 +335,7 @@ void (*type_init_function_table[])(Variant *) = {
 		&&OPCODE_TYPE_ADJUST_VECTOR3I,               \
 		&&OPCODE_TYPE_ADJUST_TRANSFORM2D,            \
 		&&OPCODE_TYPE_ADJUST_PLANE,                  \
-		&&OPCODE_TYPE_ADJUST_QUAT,                   \
+		&&OPCODE_TYPE_ADJUST_QUATERNION,             \
 		&&OPCODE_TYPE_ADJUST_AABB,                   \
 		&&OPCODE_TYPE_ADJUST_BASIS,                  \
 		&&OPCODE_TYPE_ADJUST_TRANSFORM,              \
@@ -398,7 +398,7 @@ void (*type_init_function_table[])(Variant *) = {
 #define OP_GET_VECTOR3I get_vector3i
 #define OP_GET_RECT2 get_rect2
 #define OP_GET_RECT2I get_rect2i
-#define OP_GET_QUAT get_quat
+#define OP_GET_QUATERNION get_quaternion
 #define OP_GET_COLOR get_color
 #define OP_GET_STRING get_string
 #define OP_GET_STRING_NAME get_string_name
@@ -1733,7 +1733,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE_CALL_PTR(VECTOR3I);
 			OPCODE_CALL_PTR(TRANSFORM2D);
 			OPCODE_CALL_PTR(PLANE);
-			OPCODE_CALL_PTR(QUAT);
+			OPCODE_CALL_PTR(QUATERNION);
 			OPCODE_CALL_PTR(AABB);
 			OPCODE_CALL_PTR(BASIS);
 			OPCODE_CALL_PTR(TRANSFORM3D);
@@ -3150,7 +3150,7 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 			OPCODE_TYPE_ADJUST(VECTOR3I, Vector3i);
 			OPCODE_TYPE_ADJUST(TRANSFORM2D, Transform2D);
 			OPCODE_TYPE_ADJUST(PLANE, Plane);
-			OPCODE_TYPE_ADJUST(QUAT, Quat);
+			OPCODE_TYPE_ADJUST(QUATERNION, Quaternion);
 			OPCODE_TYPE_ADJUST(AABB, AABB);
 			OPCODE_TYPE_ADJUST(BASIS, Basis);
 			OPCODE_TYPE_ADJUST(TRANSFORM, Transform3D);

modules/gltf/doc_classes/GLTFNode.xml

@@ -23,7 +23,7 @@
 		</member>
 		<member name="parent" type="int" setter="set_parent" getter="get_parent" default="-1">
 		</member>
-		<member name="rotation" type="Quat" setter="set_rotation" getter="get_rotation" default="Quat( 0, 0, 0, 1 )">
+		<member name="rotation" type="Quaternion" setter="set_rotation" getter="get_rotation" default="Quaternion( 0, 0, 0, 1 )">
 		</member>
 		<member name="scale" type="Vector3" setter="set_scale" getter="get_scale" default="Vector3( 1, 1, 1 )">
 		</member>

modules/gltf/gltf_animation.h

@@ -56,7 +56,7 @@ public:
 
 	struct Track {
 		Channel<Vector3> translation_track;
-		Channel<Quat> rotation_track;
+		Channel<Quaternion> rotation_track;
 		Channel<Vector3> scale_track;
 		Vector<Channel<float>> weight_tracks;
 	};

modules/gltf/gltf_document.cpp

@@ -342,19 +342,19 @@ static Vector3 _arr_to_vec3(const Array &p_array) {
 	return Vector3(p_array[0], p_array[1], p_array[2]);
 }
 
-static Array _quat_to_array(const Quat &p_quat) {
+static Array _quaternion_to_array(const Quaternion &p_quaternion) {
 	Array array;
 	array.resize(4);
-	array[0] = p_quat.x;
+	array[0] = p_quaternion.x;
-	array[1] = p_quat.y;
+	array[1] = p_quaternion.y;
-	array[2] = p_quat.z;
+	array[2] = p_quaternion.z;
-	array[3] = p_quat.w;
+	array[3] = p_quaternion.w;
 	return array;
 }
 
-static Quat _arr_to_quat(const Array &p_array) {
+static Quaternion _arr_to_quaternion(const Array &p_array) {
-	ERR_FAIL_COND_V(p_array.size() != 4, Quat());
+	ERR_FAIL_COND_V(p_array.size() != 4, Quaternion());
-	return Quat(p_array[0], p_array[1], p_array[2], p_array[3]);
+	return Quaternion(p_array[0], p_array[1], p_array[2], p_array[3]);
 }
 
 static Transform3D _arr_to_xform(const Array &p_array) {
@@ -425,8 +425,8 @@ Error GLTFDocument::_serialize_nodes(Ref<GLTFState> state) {
 			node["matrix"] = _xform_to_array(n->xform);
 		}
 
-		if (!n->rotation.is_equal_approx(Quat())) {
+		if (!n->rotation.is_equal_approx(Quaternion())) {
-			node["rotation"] = _quat_to_array(n->rotation);
+			node["rotation"] = _quaternion_to_array(n->rotation);
 		}
 
 		if (!n->scale.is_equal_approx(Vector3(1.0f, 1.0f, 1.0f))) {
@@ -591,13 +591,13 @@ Error GLTFDocument::_parse_nodes(Ref<GLTFState> state) {
 				node->translation = _arr_to_vec3(n["translation"]);
 			}
 			if (n.has("rotation")) {
-				node->rotation = _arr_to_quat(n["rotation"]);
+				node->rotation = _arr_to_quaternion(n["rotation"]);
 			}
 			if (n.has("scale")) {
 				node->scale = _arr_to_vec3(n["scale"]);
 			}
 
-			node->xform.basis.set_quat_scale(node->rotation, node->scale);
+			node->xform.basis.set_quaternion_scale(node->rotation, node->scale);
 			node->xform.origin = node->translation;
 		}
 
@@ -1779,7 +1779,7 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_joints(Ref<GLTFState> state,
 	return state->accessors.size() - 1;
 }
 
-GLTFAccessorIndex GLTFDocument::_encode_accessor_as_quats(Ref<GLTFState> state, const Vector<Quat> p_attribs, const bool p_for_vertex) {
+GLTFAccessorIndex GLTFDocument::_encode_accessor_as_quaternions(Ref<GLTFState> state, const Vector<Quaternion> p_attribs, const bool p_for_vertex) {
 	if (p_attribs.size() == 0) {
 		return -1;
 	}
@@ -1794,11 +1794,11 @@ GLTFAccessorIndex GLTFDocument::_encode_accessor_as_quats(Ref<GLTFState> state,
 	Vector<double> type_min;
 	type_min.resize(element_count);
 	for (int i = 0; i < p_attribs.size(); i++) {
-		Quat quat = p_attribs[i];
+		Quaternion quaternion = p_attribs[i];
-		attribs.write[(i * element_count) + 0] = Math::snapped(quat.x, CMP_NORMALIZE_TOLERANCE);
+		attribs.write[(i * element_count) + 0] = Math::snapped(quaternion.x, CMP_NORMALIZE_TOLERANCE);
-		attribs.write[(i * element_count) + 1] = Math::snapped(quat.y, CMP_NORMALIZE_TOLERANCE);
+		attribs.write[(i * element_count) + 1] = Math::snapped(quaternion.y, CMP_NORMALIZE_TOLERANCE);
-		attribs.write[(i * element_count) + 2] = Math::snapped(quat.z, CMP_NORMALIZE_TOLERANCE);
+		attribs.write[(i * element_count) + 2] = Math::snapped(quaternion.z, CMP_NORMALIZE_TOLERANCE);
-		attribs.write[(i * element_count) + 3] = Math::snapped(quat.w, CMP_NORMALIZE_TOLERANCE);
+		attribs.write[(i * element_count) + 3] = Math::snapped(quaternion.w, CMP_NORMALIZE_TOLERANCE);
 
 		_calc_accessor_min_max(i, element_count, type_max, attribs, type_min);
 	}
@@ -2053,9 +2053,9 @@ Vector<Color> GLTFDocument::_decode_accessor_as_color(Ref<GLTFState> state, cons
 	}
 	return ret;
 }
-Vector<Quat> GLTFDocument::_decode_accessor_as_quat(Ref<GLTFState> state, const GLTFAccessorIndex p_accessor, const bool p_for_vertex) {
+Vector<Quaternion> GLTFDocument::_decode_accessor_as_quaternion(Ref<GLTFState> state, const GLTFAccessorIndex p_accessor, const bool p_for_vertex) {
 	const Vector<double> attribs = _decode_accessor(state, p_accessor, p_for_vertex);
-	Vector<Quat> ret;
+	Vector<Quaternion> ret;
 
 	if (attribs.size() == 0) {
 		return ret;
@@ -2067,7 +2067,7 @@ Vector<Quat> GLTFDocument::_decode_accessor_as_quat(Ref<GLTFState> state, const
 	ret.resize(ret_size);
 	{
 		for (int i = 0; i < ret_size; i++) {
-			ret.write[i] = Quat(attribs_ptr[i * 4 + 0], attribs_ptr[i * 4 + 1], attribs_ptr[i * 4 + 2], attribs_ptr[i * 4 + 3]).normalized();
+			ret.write[i] = Quaternion(attribs_ptr[i * 4 + 0], attribs_ptr[i * 4 + 1], attribs_ptr[i * 4 + 2], attribs_ptr[i * 4 + 3]).normalized();
 		}
 	}
 	return ret;
@@ -4607,8 +4607,8 @@ Error GLTFDocument::_serialize_animations(Ref<GLTFState> state) {
 				s["interpolation"] = interpolation_to_string(track.rotation_track.interpolation);
 				Vector<real_t> times = Variant(track.rotation_track.times);
 				s["input"] = _encode_accessor_as_floats(state, times, false);
-				Vector<Quat> values = track.rotation_track.values;
+				Vector<Quaternion> values = track.rotation_track.values;
-				s["output"] = _encode_accessor_as_quats(state, values, false);
+				s["output"] = _encode_accessor_as_quaternions(state, values, false);
 
 				samplers.push_back(s);
 
@@ -4777,7 +4777,7 @@ Error GLTFDocument::_parse_animations(Ref<GLTFState> state) {
 				track->translation_track.times = Variant(times); //convert via variant
 				track->translation_track.values = Variant(translations); //convert via variant
 			} else if (path == "rotation") {
-				const Vector<Quat> rotations = _decode_accessor_as_quat(state, output, false);
+				const Vector<Quaternion> rotations = _decode_accessor_as_quaternion(state, output, false);
 				track->rotation_track.interpolation = interp;
 				track->rotation_track.times = Variant(times); //convert via variant
 				track->rotation_track.values = rotations;
@@ -5077,7 +5077,7 @@ GLTFSkeletonIndex GLTFDocument::_convert_skeleton(Ref<GLTFState> state, Skeleton
 void GLTFDocument::_convert_spatial(Ref<GLTFState> state, Node3D *p_spatial, Ref<GLTFNode> p_node) {
 	Transform3D xform = p_spatial->get_transform();
 	p_node->scale = xform.basis.get_scale();
-	p_node->rotation = xform.basis.get_rotation_quat();
+	p_node->rotation = xform.basis.get_rotation_quaternion();
 	p_node->translation = xform.origin;
 }
 
@@ -5274,9 +5274,9 @@ void GLTFDocument::_convert_mult_mesh_instance_to_gltf(Node *p_scene_parent, con
 				transform.origin =
 						Vector3(xform_2d.get_origin().x, 0, xform_2d.get_origin().y);
 				real_t rotation = xform_2d.get_rotation();
-				Quat quat(Vector3(0, 1, 0), rotation);
+				Quaternion quaternion(Vector3(0, 1, 0), rotation);
 				Size2 scale = xform_2d.get_scale();
-				transform.basis.set_quat_scale(quat,
+				transform.basis.set_quaternion_scale(quaternion,
 						Vector3(scale.x, 0, scale.y));
 				transform =
 						multi_mesh_instance->get_transform() * transform;
@@ -5516,24 +5516,24 @@ struct EditorSceneImporterGLTFInterpolate {
 
 // thank you for existing, partial specialization
 template <>
-struct EditorSceneImporterGLTFInterpolate<Quat> {
+struct EditorSceneImporterGLTFInterpolate<Quaternion> {
-	Quat lerp(const Quat &a, const Quat &b, const float c) const {
+	Quaternion lerp(const Quaternion &a, const Quaternion &b, const float c) const {
-		ERR_FAIL_COND_V_MSG(!a.is_normalized(), Quat(), "The quaternion \"a\" must be normalized.");
+		ERR_FAIL_COND_V_MSG(!a.is_normalized(), Quaternion(), "The quaternion \"a\" must be normalized.");
-		ERR_FAIL_COND_V_MSG(!b.is_normalized(), Quat(), "The quaternion \"b\" must be normalized.");
+		ERR_FAIL_COND_V_MSG(!b.is_normalized(), Quaternion(), "The quaternion \"b\" must be normalized.");
 
 		return a.slerp(b, c).normalized();
 	}
 
-	Quat catmull_rom(const Quat &p0, const Quat &p1, const Quat &p2, const Quat &p3, const float c) {
+	Quaternion catmull_rom(const Quaternion &p0, const Quaternion &p1, const Quaternion &p2, const Quaternion &p3, const float c) {
-		ERR_FAIL_COND_V_MSG(!p1.is_normalized(), Quat(), "The quaternion \"p1\" must be normalized.");
+		ERR_FAIL_COND_V_MSG(!p1.is_normalized(), Quaternion(), "The quaternion \"p1\" must be normalized.");
-		ERR_FAIL_COND_V_MSG(!p2.is_normalized(), Quat(), "The quaternion \"p2\" must be normalized.");
+		ERR_FAIL_COND_V_MSG(!p2.is_normalized(), Quaternion(), "The quaternion \"p2\" must be normalized.");
 
 		return p1.slerp(p2, c).normalized();
 	}
 
-	Quat bezier(const Quat start, const Quat control_1, const Quat control_2, const Quat end, const float t) {
+	Quaternion bezier(const Quaternion start, const Quaternion control_1, const Quaternion control_2, const Quaternion end, const float t) {
-		ERR_FAIL_COND_V_MSG(!start.is_normalized(), Quat(), "The start quaternion must be normalized.");
+		ERR_FAIL_COND_V_MSG(!start.is_normalized(), Quaternion(), "The start quaternion must be normalized.");
-		ERR_FAIL_COND_V_MSG(!end.is_normalized(), Quat(), "The end quaternion must be normalized.");
+		ERR_FAIL_COND_V_MSG(!end.is_normalized(), Quaternion(), "The end quaternion must be normalized.");
 
 		return start.slerp(end, t).normalized();
 	}
@@ -5681,7 +5681,7 @@ void GLTFDocument::_import_animation(Ref<GLTFState> state, AnimationPlayer *ap,
 			double time = 0.0;
 
 			Vector3 base_pos;
-			Quat base_rot;
+			Quaternion base_rot;
 			Vector3 base_scale = Vector3(1, 1, 1);
 
 			if (!track.rotation_track.values.size()) {
@@ -5699,7 +5699,7 @@ void GLTFDocument::_import_animation(Ref<GLTFState> state, AnimationPlayer *ap,
 			bool last = false;
 			while (true) {
 				Vector3 pos = base_pos;
-				Quat rot = base_rot;
+				Quaternion rot = base_rot;
 				Vector3 scale = base_scale;
 
 				if (track.translation_track.times.size()) {
@@ -5707,7 +5707,7 @@ void GLTFDocument::_import_animation(Ref<GLTFState> state, AnimationPlayer *ap,
 				}
 
 				if (track.rotation_track.times.size()) {
-					rot = _interpolate_track<Quat>(track.rotation_track.times, track.rotation_track.values, time, track.rotation_track.interpolation);
+					rot = _interpolate_track<Quaternion>(track.rotation_track.times, track.rotation_track.values, time, track.rotation_track.interpolation);
 				}
 
 				if (track.scale_track.times.size()) {
@@ -5716,14 +5716,14 @@ void GLTFDocument::_import_animation(Ref<GLTFState> state, AnimationPlayer *ap,
 
 				if (gltf_node->skeleton >= 0) {
 					Transform3D xform;
-					xform.basis.set_quat_scale(rot, scale);
+					xform.basis.set_quaternion_scale(rot, scale);
 					xform.origin = pos;
 
 					const Skeleton3D *skeleton = state->skeletons[gltf_node->skeleton]->godot_skeleton;
 					const int bone_idx = skeleton->find_bone(gltf_node->get_name());
 					xform = skeleton->get_bone_rest(bone_idx).affine_inverse() * xform;
 
-					rot = xform.basis.get_rotation_quat();
+					rot = xform.basis.get_rotation_quaternion();
 					rot.normalize();
 					scale = xform.basis.get_scale();
 					pos = xform.origin;
@@ -5810,7 +5810,7 @@ void GLTFDocument::_convert_mesh_instances(Ref<GLTFState> state) {
 		ERR_CONTINUE(!mi);
 		Transform3D mi_xform = mi->get_transform();
 		node->scale = mi_xform.basis.get_scale();
-		node->rotation = mi_xform.basis.get_rotation_quat();
+		node->rotation = mi_xform.basis.get_rotation_quaternion();
 		node->translation = mi_xform.origin;
 
 		Dictionary json_skin;
@@ -5874,7 +5874,7 @@ void GLTFDocument::_convert_mesh_instances(Ref<GLTFState> state) {
 
 			Transform3D bone_rest_xform = skeleton->get_bone_rest(bone_index);
 			joint_node->scale = bone_rest_xform.basis.get_scale();
-			joint_node->rotation = bone_rest_xform.basis.get_rotation_quat();
+			joint_node->rotation = bone_rest_xform.basis.get_rotation_quaternion();
 			joint_node->translation = bone_rest_xform.origin;
 			joint_node->joint = true;
 
@@ -6036,16 +6036,16 @@ GLTFAnimation::Track GLTFDocument::_convert_animation_track(Ref<GLTFState> state
 		p_track.rotation_track.interpolation = gltf_interpolation;
 		for (int32_t key_i = 0; key_i < key_count; key_i++) {
 			Vector3 translation;
-			Quat rotation;
+			Quaternion rotation;
 			Vector3 scale;
 			Error err = p_animation->transform_track_get_key(p_track_i, key_i, &translation, &rotation, &scale);
 			ERR_CONTINUE(err != OK);
 			Transform3D xform;
-			xform.basis.set_quat_scale(rotation, scale);
+			xform.basis.set_quaternion_scale(rotation, scale);
 			xform.origin = translation;
 			xform = p_bone_rest * xform;
 			p_track.translation_track.values.write[key_i] = xform.get_origin();
-			p_track.rotation_track.values.write[key_i] = xform.basis.get_rotation_quat();
+			p_track.rotation_track.values.write[key_i] = xform.basis.get_rotation_quaternion();
 			p_track.scale_track.values.write[key_i] = xform.basis.get_scale();
 		}
 	} else if (path.find(":transform") != -1) {
@@ -6065,7 +6065,7 @@ GLTFAnimation::Track GLTFDocument::_convert_animation_track(Ref<GLTFState> state
 		for (int32_t key_i = 0; key_i < key_count; key_i++) {
 			Transform3D xform = p_animation->track_get_key_value(p_track_i, key_i);
 			p_track.translation_track.values.write[key_i] = xform.get_origin();
-			p_track.rotation_track.values.write[key_i] = xform.basis.get_rotation_quat();
+			p_track.rotation_track.values.write[key_i] = xform.basis.get_rotation_quaternion();
 			p_track.scale_track.values.write[key_i] = xform.basis.get_scale();
 		}
 	} else if (track_type == Animation::TYPE_VALUE) {
@@ -6077,7 +6077,7 @@ GLTFAnimation::Track GLTFDocument::_convert_animation_track(Ref<GLTFState> state
 			p_track.rotation_track.interpolation = gltf_interpolation;
 
 			for (int32_t key_i = 0; key_i < key_count; key_i++) {
-				Quat rotation_track = p_animation->track_get_key_value(p_track_i, key_i);
+				Quaternion rotation_track = p_animation->track_get_key_value(p_track_i, key_i);
 				p_track.rotation_track.values.write[key_i] = rotation_track;
 			}
 		} else if (path.find(":translation") != -1) {
@@ -6104,7 +6104,7 @@ GLTFAnimation::Track GLTFDocument::_convert_animation_track(Ref<GLTFState> state
 				rotation_radian.x = Math::deg2rad(rotation_degrees.x);
 				rotation_radian.y = Math::deg2rad(rotation_degrees.y);
 				rotation_radian.z = Math::deg2rad(rotation_degrees.z);
-				p_track.rotation_track.values.write[key_i] = Quat(rotation_radian);
+				p_track.rotation_track.values.write[key_i] = Quaternion(rotation_radian);
 			}
 		} else if (path.find(":scale") != -1) {
 			p_track.scale_track.times = times;

modules/gltf/gltf_document.h

@@ -205,7 +205,7 @@ private:
 	Vector<Color> _decode_accessor_as_color(Ref<GLTFState> state,
 			const GLTFAccessorIndex p_accessor,
 			const bool p_for_vertex);
-	Vector<Quat> _decode_accessor_as_quat(Ref<GLTFState> state,
+	Vector<Quaternion> _decode_accessor_as_quaternion(Ref<GLTFState> state,
 			const GLTFAccessorIndex p_accessor,
 			const bool p_for_vertex);
 	Vector<Transform2D> _decode_accessor_as_xform2d(Ref<GLTFState> state,
@@ -273,8 +273,8 @@ private:
 	T _interpolate_track(const Vector<float> &p_times, const Vector<T> &p_values,
 			const float p_time,
 			const GLTFAnimation::Interpolation p_interp);
-	GLTFAccessorIndex _encode_accessor_as_quats(Ref<GLTFState> state,
+	GLTFAccessorIndex _encode_accessor_as_quaternions(Ref<GLTFState> state,
-			const Vector<Quat> p_attribs,
+			const Vector<Quaternion> p_attribs,
 			const bool p_for_vertex);
 	GLTFAccessorIndex _encode_accessor_as_weights(Ref<GLTFState> state,
 			const Vector<Color> p_attribs,

modules/gltf/gltf_node.cpp

@@ -67,7 +67,7 @@ void GLTFNode::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "skeleton"), "set_skeleton", "get_skeleton"); // GLTFSkeletonIndex
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "joint"), "set_joint", "get_joint"); // bool
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "translation"), "set_translation", "get_translation"); // Vector3
-	ADD_PROPERTY(PropertyInfo(Variant::QUAT, "rotation"), "set_rotation", "get_rotation"); // Quat
+	ADD_PROPERTY(PropertyInfo(Variant::QUATERNION, "rotation"), "set_rotation", "get_rotation"); // Quaternion
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "scale"), "set_scale", "get_scale"); // Vector3
 	ADD_PROPERTY(PropertyInfo(Variant::PACKED_INT32_ARRAY, "children"), "set_children", "get_children"); // Vector<int>
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "light"), "set_light", "get_light"); // GLTFLightIndex
@@ -145,11 +145,11 @@ void GLTFNode::set_translation(Vector3 p_translation) {
 	translation = p_translation;
 }
 
-Quat GLTFNode::get_rotation() {
+Quaternion GLTFNode::get_rotation() {
 	return rotation;
 }
 
-void GLTFNode::set_rotation(Quat p_rotation) {
+void GLTFNode::set_rotation(Quaternion p_rotation) {
 	rotation = p_rotation;
 }
 

modules/gltf/gltf_node.h

@@ -50,7 +50,7 @@ private:
 	GLTFSkeletonIndex skeleton = -1;
 	bool joint = false;
 	Vector3 translation;
-	Quat rotation;
+	Quaternion rotation;
 	Vector3 scale = Vector3(1, 1, 1);
 	Vector<int> children;
 	GLTFLightIndex light = -1;
@@ -86,8 +86,8 @@ public:
 	Vector3 get_translation();
 	void set_translation(Vector3 p_translation);
 
-	Quat get_rotation();
+	Quaternion get_rotation();
-	void set_rotation(Quat p_rotation);
+	void set_rotation(Quaternion p_rotation);
 
 	Vector3 get_scale();
 	void set_scale(Vector3 p_scale);

modules/mobile_vr/mobile_vr_interface.cpp

@@ -185,8 +185,8 @@ void MobileVRInterface::set_position_from_sensors() {
 	// if you have a gyro + accelerometer that combo tends to be better than combining all three but without a gyro you need the magnetometer..
 	if (has_magneto && has_grav && !has_gyro) {
 		// convert to quaternions, easier to smooth those out
-		Quat transform_quat(orientation);
+		Quaternion transform_quat(orientation);
-		Quat acc_mag_quat(combine_acc_mag(grav, magneto));
+		Quaternion acc_mag_quat(combine_acc_mag(grav, magneto));
 		transform_quat = transform_quat.slerp(acc_mag_quat, 0.1);
 		orientation = Basis(transform_quat);
 

modules/mono/csharp_script.cpp

@@ -496,7 +496,7 @@ static String variant_type_to_managed_name(const String &p_var_type_name) {
 		Variant::VECTOR3I,
 		Variant::TRANSFORM2D,
 		Variant::PLANE,
-		Variant::QUAT,
+		Variant::QUATERNION,
 		Variant::AABB,
 		Variant::BASIS,
 		Variant::TRANSFORM3D,

modules/mono/editor/bindings_generator.cpp

@@ -2523,7 +2523,7 @@ bool BindingsGenerator::_arg_default_value_is_assignable_to_type(const Variant &
 		case Variant::TRANSFORM2D:
 		case Variant::TRANSFORM3D:
 		case Variant::BASIS:
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 		case Variant::PLANE:
 		case Variant::AABB:
 		case Variant::COLOR:
@@ -3142,12 +3142,12 @@ bool BindingsGenerator::_arg_default_value_from_variant(const Variant &p_val, Ar
 			}
 			r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
 		} break;
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			Quat quat = p_val.operator Quat();
+			Quaternion quaternion = p_val.operator Quaternion();
-			if (quat == Quat()) {
+			if (quaternion == Quaternion()) {
-				r_iarg.default_argument = "Quat.Identity";
+				r_iarg.default_argument = "Quaternion.Identity";
 			} else {
-				r_iarg.default_argument = "new Quat" + quat.operator String();
+				r_iarg.default_argument = "new Quaternion" + quaternion.operator String();
 			}
 			r_iarg.def_param_mode = ArgumentInterface::NULLABLE_VAL;
 		} break;
@@ -3196,7 +3196,7 @@ void BindingsGenerator::_populate_builtin_type_interfaces() {
 	INSERT_STRUCT_TYPE(Vector3)
 	INSERT_STRUCT_TYPE(Vector3i)
 	INSERT_STRUCT_TYPE(Basis)
-	INSERT_STRUCT_TYPE(Quat)
+	INSERT_STRUCT_TYPE(Quaternion)
 	INSERT_STRUCT_TYPE(Transform3D)
 	INSERT_STRUCT_TYPE(AABB)
 	INSERT_STRUCT_TYPE(Color)

modules/mono/glue/GodotSharp/GodotSharp/Core/Basis.cs

@@ -207,7 +207,7 @@ namespace Godot
             }
         }
 
-        public Quat RotationQuat()
+        public Quaternion RotationQuaternion()
         {
             Basis orthonormalizedBasis = Orthonormalized();
             real_t det = orthonormalizedBasis.Determinant();
@@ -218,18 +218,18 @@ namespace Godot
                 orthonormalizedBasis = orthonormalizedBasis.Scaled(-Vector3.One);
             }
 
-            return orthonormalizedBasis.Quat();
+            return orthonormalizedBasis.Quaternion();
         }
 
-        internal void SetQuatScale(Quat quat, Vector3 scale)
+        internal void SetQuaternionScale(Quaternion quaternion, Vector3 scale)
         {
             SetDiagonal(scale);
-            Rotate(quat);
+            Rotate(quaternion);
         }
 
-        private void Rotate(Quat quat)
+        private void Rotate(Quaternion quaternion)
         {
-            this *= new Basis(quat);
+            this *= new Basis(quaternion);
         }
 
         private void SetDiagonal(Vector3 diagonal)
@@ -263,8 +263,8 @@ namespace Godot
         /// The returned vector contains the rotation angles in
         /// the format (X angle, Y angle, Z angle).
         ///
-        /// Consider using the <see cref="Basis.Quat()"/> method instead, which
+        /// Consider using the <see cref="Basis.Quaternion()"/> method instead, which
-        /// returns a <see cref="Godot.Quat"/> quaternion instead of Euler angles.
+        /// returns a <see cref="Godot.Quaternion"/> quaternion instead of Euler angles.
         /// </summary>
         /// <returns>A Vector3 representing the basis rotation in Euler angles.</returns>
         public Vector3 GetEuler()
@@ -486,8 +486,8 @@ namespace Godot
         /// <returns>The resulting basis matrix of the interpolation.</returns>
         public Basis Slerp(Basis target, real_t weight)
         {
-            Quat from = new Quat(this);
+            Quaternion from = new Quaternion(this);
-            Quat to = new Quat(target);
+            Quaternion to = new Quaternion(target);
 
             Basis b = new Basis(from.Slerp(to, weight));
             b.Row0 *= Mathf.Lerp(Row0.Length(), target.Row0.Length(), weight);
@@ -588,8 +588,8 @@ namespace Godot
         /// See <see cref="GetEuler()"/> if you need Euler angles, but keep in
         /// mind that quaternions should generally be preferred to Euler angles.
         /// </summary>
-        /// <returns>A <see cref="Godot.Quat"/> representing the basis's rotation.</returns>
+        /// <returns>A <see cref="Godot.Quaternion"/> representing the basis's rotation.</returns>
-        public Quat Quat()
+        public Quaternion Quaternion()
         {
             real_t trace = Row0[0] + Row1[1] + Row2[2];
 
@@ -597,7 +597,7 @@ namespace Godot
             {
                 real_t s = Mathf.Sqrt(trace + 1.0f) * 2f;
                 real_t inv_s = 1f / s;
-                return new Quat(
+                return new Quaternion(
                     (Row2[1] - Row1[2]) * inv_s,
                     (Row0[2] - Row2[0]) * inv_s,
                     (Row1[0] - Row0[1]) * inv_s,
@@ -609,7 +609,7 @@ namespace Godot
             {
                 real_t s = Mathf.Sqrt(Row0[0] - Row1[1] - Row2[2] + 1.0f) * 2f;
                 real_t inv_s = 1f / s;
-                return new Quat(
+                return new Quaternion(
                     s * 0.25f,
                     (Row0[1] + Row1[0]) * inv_s,
                     (Row0[2] + Row2[0]) * inv_s,
@@ -621,7 +621,7 @@ namespace Godot
             {
                 real_t s = Mathf.Sqrt(-Row0[0] + Row1[1] - Row2[2] + 1.0f) * 2f;
                 real_t inv_s = 1f / s;
-                return new Quat(
+                return new Quaternion(
                     (Row0[1] + Row1[0]) * inv_s,
                     s * 0.25f,
                     (Row1[2] + Row2[1]) * inv_s,
@@ -632,7 +632,7 @@ namespace Godot
             {
                 real_t s = Mathf.Sqrt(-Row0[0] - Row1[1] + Row2[2] + 1.0f) * 2f;
                 real_t inv_s = 1f / s;
-                return new Quat(
+                return new Quaternion(
                     (Row0[2] + Row2[0]) * inv_s,
                     (Row1[2] + Row2[1]) * inv_s,
                     s * 0.25f,
@@ -699,23 +699,23 @@ namespace Godot
         /// <summary>
         /// Constructs a pure rotation basis matrix from the given quaternion.
         /// </summary>
-        /// <param name="quat">The quaternion to create the basis from.</param>
+        /// <param name="quaternion">The quaternion to create the basis from.</param>
-        public Basis(Quat quat)
+        public Basis(Quaternion quaternion)
         {
-            real_t s = 2.0f / quat.LengthSquared;
+            real_t s = 2.0f / quaternion.LengthSquared;
 
-            real_t xs = quat.x * s;
+            real_t xs = quaternion.x * s;
-            real_t ys = quat.y * s;
+            real_t ys = quaternion.y * s;
-            real_t zs = quat.z * s;
+            real_t zs = quaternion.z * s;
-            real_t wx = quat.w * xs;
+            real_t wx = quaternion.w * xs;
-            real_t wy = quat.w * ys;
+            real_t wy = quaternion.w * ys;
-            real_t wz = quat.w * zs;
+            real_t wz = quaternion.w * zs;
-            real_t xx = quat.x * xs;
+            real_t xx = quaternion.x * xs;
-            real_t xy = quat.x * ys;
+            real_t xy = quaternion.x * ys;
-            real_t xz = quat.x * zs;
+            real_t xz = quaternion.x * zs;
-            real_t yy = quat.y * ys;
+            real_t yy = quaternion.y * ys;
-            real_t yz = quat.y * zs;
+            real_t yz = quaternion.y * zs;
-            real_t zz = quat.z * zs;
+            real_t zz = quaternion.z * zs;
 
             Row0 = new Vector3(1.0f - (yy + zz), xy - wz, xz + wy);
             Row1 = new Vector3(xy + wz, 1.0f - (xx + zz), yz - wx);
@@ -727,8 +727,8 @@ namespace Godot
         /// (in the YXZ convention: when *composing*, first Y, then X, and Z last),
         /// given in the vector format as (X angle, Y angle, Z angle).
         ///
-        /// Consider using the <see cref="Basis(Quat)"/> constructor instead, which
+        /// Consider using the <see cref="Basis(Quaternion)"/> constructor instead, which
-        /// uses a <see cref="Godot.Quat"/> quaternion instead of Euler angles.
+        /// uses a <see cref="Godot.Quaternion"/> quaternion instead of Euler angles.
         /// </summary>
         /// <param name="eulerYXZ">The Euler angles to create the basis from.</param>
         public Basis(Vector3 eulerYXZ)

modules/mono/glue/GodotSharp/GodotSharp/Core/Quaternion.cs

@@ -15,7 +15,7 @@ namespace Godot
     /// It is similar to Basis, which implements matrix representation of
     /// rotations, and can be parametrized using both an axis-angle pair
     /// or Euler angles. Basis stores rotation, scale, and shearing,
-    /// while Quat only stores rotation.
+    /// while Quaternion only stores rotation.
     ///
     /// Due to its compactness and the way it is stored in memory, certain
     /// operations (obtaining axis-angle and performing SLERP, in particular)
@@ -23,7 +23,7 @@ namespace Godot
     /// </summary>
     [Serializable]
     [StructLayout(LayoutKind.Sequential)]
-    public struct Quat : IEquatable<Quat>
+    public struct Quaternion : IEquatable<Quaternion>
     {
         /// <summary>
         /// X component of the quaternion (imaginary `i` axis part).
@@ -122,11 +122,11 @@ namespace Godot
         /// <param name="postB">A quaternion after `b`.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The interpolated quaternion.</returns>
-        public Quat CubicSlerp(Quat b, Quat preA, Quat postB, real_t weight)
+        public Quaternion CubicSlerp(Quaternion b, Quaternion preA, Quaternion postB, real_t weight)
         {
             real_t t2 = (1.0f - weight) * weight * 2f;
-            Quat sp = Slerp(b, weight);
+            Quaternion sp = Slerp(b, weight);
-            Quat sq = preA.Slerpni(postB, weight);
+            Quaternion sq = preA.Slerpni(postB, weight);
             return sp.Slerpni(sq, t2);
         }
 
@@ -135,7 +135,7 @@ namespace Godot
         /// </summary>
         /// <param name="b">The other quaternion.</param>
         /// <returns>The dot product.</returns>
-        public real_t Dot(Quat b)
+        public real_t Dot(Quaternion b)
         {
             return x * b.x + y * b.y + z * b.z + w * b.w;
         }
@@ -152,7 +152,7 @@ namespace Godot
 #if DEBUG
             if (!IsNormalized())
             {
-                throw new InvalidOperationException("Quat is not normalized");
+                throw new InvalidOperationException("Quaternion is not normalized");
             }
 #endif
             var basis = new Basis(this);
@@ -163,15 +163,15 @@ namespace Godot
         /// Returns the inverse of the quaternion.
         /// </summary>
         /// <returns>The inverse quaternion.</returns>
-        public Quat Inverse()
+        public Quaternion Inverse()
         {
 #if DEBUG
             if (!IsNormalized())
             {
-                throw new InvalidOperationException("Quat is not normalized");
+                throw new InvalidOperationException("Quaternion is not normalized");
             }
 #endif
-            return new Quat(-x, -y, -z, w);
+            return new Quaternion(-x, -y, -z, w);
         }
 
         /// <summary>
@@ -187,7 +187,7 @@ namespace Godot
         /// Returns a copy of the quaternion, normalized to unit length.
         /// </summary>
         /// <returns>The normalized quaternion.</returns>
-        public Quat Normalized()
+        public Quaternion Normalized()
         {
             return this / Length;
         }
@@ -201,12 +201,12 @@ namespace Godot
         /// <param name="to">The destination quaternion for interpolation. Must be normalized.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting quaternion of the interpolation.</returns>
-        public Quat Slerp(Quat to, real_t weight)
+        public Quaternion Slerp(Quaternion to, real_t weight)
         {
 #if DEBUG
             if (!IsNormalized())
             {
-                throw new InvalidOperationException("Quat is not normalized");
+                throw new InvalidOperationException("Quaternion is not normalized");
             }
             if (!to.IsNormalized())
             {
@@ -217,7 +217,7 @@ namespace Godot
             // Calculate cosine.
             real_t cosom = x * to.x + y * to.y + z * to.z + w * to.w;
 
-            var to1 = new Quat();
+            var to1 = new Quaternion();
 
             // Adjust signs if necessary.
             if (cosom < 0.0)
@@ -255,7 +255,7 @@ namespace Godot
             }
 
             // Calculate final values.
-            return new Quat
+            return new Quaternion
             (
                 scale0 * x + scale1 * to1.x,
                 scale0 * y + scale1 * to1.y,
@@ -272,7 +272,7 @@ namespace Godot
         /// <param name="to">The destination quaternion for interpolation. Must be normalized.</param>
         /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param>
         /// <returns>The resulting quaternion of the interpolation.</returns>
-        public Quat Slerpni(Quat to, real_t weight)
+        public Quaternion Slerpni(Quaternion to, real_t weight)
         {
             real_t dot = Dot(to);
 
@@ -286,7 +286,7 @@ namespace Godot
             real_t newFactor = Mathf.Sin(weight * theta) * sinT;
             real_t invFactor = Mathf.Sin((1.0f - weight) * theta) * sinT;
 
-            return new Quat
+            return new Quaternion
             (
                 invFactor * x + newFactor * to.x,
                 invFactor * y + newFactor * to.y,
@@ -305,7 +305,7 @@ namespace Godot
 #if DEBUG
             if (!IsNormalized())
             {
-                throw new InvalidOperationException("Quat is not normalized");
+                throw new InvalidOperationException("Quaternion is not normalized");
             }
 #endif
             var u = new Vector3(x, y, z);
@@ -314,15 +314,15 @@ namespace Godot
         }
 
         // Constants
-        private static readonly Quat _identity = new Quat(0, 0, 0, 1);
+        private static readonly Quaternion _identity = new Quaternion(0, 0, 0, 1);
 
         /// <summary>
         /// The identity quaternion, representing no rotation.
         /// Equivalent to an identity <see cref="Basis"/> matrix. If a vector is transformed by
         /// an identity quaternion, it will not change.
         /// </summary>
-        /// <value>Equivalent to `new Quat(0, 0, 0, 1)`.</value>
+        /// <value>Equivalent to `new Quaternion(0, 0, 0, 1)`.</value>
-        public static Quat Identity { get { return _identity; } }
+        public static Quaternion Identity { get { return _identity; } }
 
         /// <summary>
         /// Constructs a quaternion defined by the given values.
@@ -331,7 +331,7 @@ namespace Godot
         /// <param name="y">Y component of the quaternion (imaginary `j` axis part).</param>
         /// <param name="z">Z component of the quaternion (imaginary `k` axis part).</param>
         /// <param name="w">W component of the quaternion (real part).</param>
-        public Quat(real_t x, real_t y, real_t z, real_t w)
+        public Quaternion(real_t x, real_t y, real_t z, real_t w)
         {
             this.x = x;
             this.y = y;
@@ -343,7 +343,7 @@ namespace Godot
         /// Constructs a quaternion from the given quaternion.
         /// </summary>
         /// <param name="q">The existing quaternion.</param>
-        public Quat(Quat q)
+        public Quaternion(Quaternion q)
         {
             this = q;
         }
@@ -352,9 +352,9 @@ namespace Godot
         /// Constructs a quaternion from the given <see cref="Basis"/>.
         /// </summary>
         /// <param name="basis">The basis to construct from.</param>
-        public Quat(Basis basis)
+        public Quaternion(Basis basis)
         {
-            this = basis.Quat();
+            this = basis.Quaternion();
         }
 
         /// <summary>
@@ -364,7 +364,7 @@ namespace Godot
         /// given in the vector format as (X angle, Y angle, Z angle).
         /// </summary>
         /// <param name="eulerYXZ"></param>
-        public Quat(Vector3 eulerYXZ)
+        public Quaternion(Vector3 eulerYXZ)
         {
             real_t half_a1 = eulerYXZ.y * 0.5f;
             real_t half_a2 = eulerYXZ.x * 0.5f;
@@ -393,7 +393,7 @@ namespace Godot
         /// </summary>
         /// <param name="axis">The axis to rotate around. Must be normalized.</param>
         /// <param name="angle">The angle to rotate, in radians.</param>
-        public Quat(Vector3 axis, real_t angle)
+        public Quaternion(Vector3 axis, real_t angle)
         {
 #if DEBUG
             if (!axis.IsNormalized())
@@ -424,9 +424,9 @@ namespace Godot
             }
         }
 
-        public static Quat operator *(Quat left, Quat right)
+        public static Quaternion operator *(Quaternion left, Quaternion right)
         {
-            return new Quat
+            return new Quaternion
             (
                 left.w * right.x + left.x * right.w + left.y * right.z - left.z * right.y,
                 left.w * right.y + left.y * right.w + left.z * right.x - left.x * right.z,
@@ -435,24 +435,24 @@ namespace Godot
             );
         }
 
-        public static Quat operator +(Quat left, Quat right)
+        public static Quaternion operator +(Quaternion left, Quaternion right)
         {
-            return new Quat(left.x + right.x, left.y + right.y, left.z + right.z, left.w + right.w);
+            return new Quaternion(left.x + right.x, left.y + right.y, left.z + right.z, left.w + right.w);
         }
 
-        public static Quat operator -(Quat left, Quat right)
+        public static Quaternion operator -(Quaternion left, Quaternion right)
         {
-            return new Quat(left.x - right.x, left.y - right.y, left.z - right.z, left.w - right.w);
+            return new Quaternion(left.x - right.x, left.y - right.y, left.z - right.z, left.w - right.w);
         }
 
-        public static Quat operator -(Quat left)
+        public static Quaternion operator -(Quaternion left)
         {
-            return new Quat(-left.x, -left.y, -left.z, -left.w);
+            return new Quaternion(-left.x, -left.y, -left.z, -left.w);
         }
 
-        public static Quat operator *(Quat left, Vector3 right)
+        public static Quaternion operator *(Quaternion left, Vector3 right)
         {
-            return new Quat
+            return new Quaternion
             (
                 left.w * right.x + left.y * right.z - left.z * right.y,
                 left.w * right.y + left.z * right.x - left.x * right.z,
@@ -461,9 +461,9 @@ namespace Godot
             );
         }
 
-        public static Quat operator *(Vector3 left, Quat right)
+        public static Quaternion operator *(Vector3 left, Quaternion right)
         {
-            return new Quat
+            return new Quaternion
             (
                 right.w * left.x + right.y * left.z - right.z * left.y,
                 right.w * left.y + right.z * left.x - right.x * left.z,
@@ -472,42 +472,42 @@ namespace Godot
             );
         }
 
-        public static Quat operator *(Quat left, real_t right)
+        public static Quaternion operator *(Quaternion left, real_t right)
         {
-            return new Quat(left.x * right, left.y * right, left.z * right, left.w * right);
+            return new Quaternion(left.x * right, left.y * right, left.z * right, left.w * right);
         }
 
-        public static Quat operator *(real_t left, Quat right)
+        public static Quaternion operator *(real_t left, Quaternion right)
         {
-            return new Quat(right.x * left, right.y * left, right.z * left, right.w * left);
+            return new Quaternion(right.x * left, right.y * left, right.z * left, right.w * left);
         }
 
-        public static Quat operator /(Quat left, real_t right)
+        public static Quaternion operator /(Quaternion left, real_t right)
         {
             return left * (1.0f / right);
         }
 
-        public static bool operator ==(Quat left, Quat right)
+        public static bool operator ==(Quaternion left, Quaternion right)
         {
             return left.Equals(right);
         }
 
-        public static bool operator !=(Quat left, Quat right)
+        public static bool operator !=(Quaternion left, Quaternion right)
         {
             return !left.Equals(right);
         }
 
         public override bool Equals(object obj)
         {
-            if (obj is Quat)
+            if (obj is Quaternion)
             {
-                return Equals((Quat)obj);
+                return Equals((Quaternion)obj);
             }
 
             return false;
         }
 
-        public bool Equals(Quat other)
+        public bool Equals(Quaternion other)
         {
             return x == other.x && y == other.y && z == other.z && w == other.w;
         }
@@ -518,7 +518,7 @@ namespace Godot
         /// </summary>
         /// <param name="other">The other quaternion to compare.</param>
         /// <returns>Whether or not the quaternions are approximately equal.</returns>
-        public bool IsEqualApprox(Quat other)
+        public bool IsEqualApprox(Quaternion other)
         {
             return Mathf.IsEqualApprox(x, other.x) && Mathf.IsEqualApprox(y, other.y) && Mathf.IsEqualApprox(z, other.z) && Mathf.IsEqualApprox(w, other.w);
         }

modules/mono/glue/GodotSharp/GodotSharp/Core/Transform3D.cs

@@ -124,15 +124,15 @@ namespace Godot
             /* not sure if very "efficient" but good enough? */
 
             Vector3 sourceScale = basis.Scale;
-            Quat sourceRotation = basis.RotationQuat();
+            Quaternion sourceRotation = basis.RotationQuaternion();
             Vector3 sourceLocation = origin;
 
             Vector3 destinationScale = transform.basis.Scale;
-            Quat destinationRotation = transform.basis.RotationQuat();
+            Quaternion destinationRotation = transform.basis.RotationQuaternion();
             Vector3 destinationLocation = transform.origin;
 
             var interpolated = new Transform3D();
-            interpolated.basis.SetQuatScale(sourceRotation.Slerp(destinationRotation, weight).Normalized(), sourceScale.Lerp(destinationScale, weight));
+            interpolated.basis.SetQuaternionScale(sourceRotation.Slerp(destinationRotation, weight).Normalized(), sourceScale.Lerp(destinationScale, weight));
             interpolated.origin = sourceLocation.Lerp(destinationLocation, weight);
 
             return interpolated;
@@ -324,11 +324,11 @@ namespace Godot
         /// <summary>
         /// Constructs a transformation matrix from the given quaternion and origin vector.
         /// </summary>
-        /// <param name="quat">The <see cref="Godot.Quat"/> to create the basis from.</param>
+        /// <param name="quaternion">The <see cref="Godot.Quaternion"/> to create the basis from.</param>
         /// <param name="origin">The origin vector, or column index 3.</param>
-        public Transform3D(Quat quat, Vector3 origin)
+        public Transform3D(Quaternion quaternion, Vector3 origin)
         {
-            basis = new Basis(quat);
+            basis = new Basis(quaternion);
             this.origin = origin;
         }
 

modules/mono/glue/GodotSharp/GodotSharp/GodotSharp.csproj

@@ -50,7 +50,7 @@
     <Compile Include="Core\NodePath.cs" />
     <Compile Include="Core\Object.base.cs" />
     <Compile Include="Core\Plane.cs" />
-    <Compile Include="Core\Quat.cs" />
+    <Compile Include="Core\Quaternion.cs" />
     <Compile Include="Core\Rect2.cs" />
     <Compile Include="Core\Rect2i.cs" />
     <Compile Include="Core\RID.cs" />

modules/mono/mono_gd/gd_mono_cache.cpp

@@ -109,7 +109,7 @@ void CachedData::clear_godot_api_cache() {
 	class_Vector3 = nullptr;
 	class_Vector3i = nullptr;
 	class_Basis = nullptr;
-	class_Quat = nullptr;
+	class_Quaternion = nullptr;
 	class_Transform3D = nullptr;
 	class_AABB = nullptr;
 	class_Color = nullptr;
@@ -238,7 +238,7 @@ void update_godot_api_cache() {
 	CACHE_CLASS_AND_CHECK(Vector3, GODOT_API_CLASS(Vector3));
 	CACHE_CLASS_AND_CHECK(Vector3i, GODOT_API_CLASS(Vector3i));
 	CACHE_CLASS_AND_CHECK(Basis, GODOT_API_CLASS(Basis));
-	CACHE_CLASS_AND_CHECK(Quat, GODOT_API_CLASS(Quat));
+	CACHE_CLASS_AND_CHECK(Quaternion, GODOT_API_CLASS(Quaternion));
 	CACHE_CLASS_AND_CHECK(Transform3D, GODOT_API_CLASS(Transform3D));
 	CACHE_CLASS_AND_CHECK(AABB, GODOT_API_CLASS(AABB));
 	CACHE_CLASS_AND_CHECK(Color, GODOT_API_CLASS(Color));

modules/mono/mono_gd/gd_mono_cache.h

@@ -80,7 +80,7 @@ struct CachedData {
 	GDMonoClass *class_Vector3;
 	GDMonoClass *class_Vector3i;
 	GDMonoClass *class_Basis;
-	GDMonoClass *class_Quat;
+	GDMonoClass *class_Quaternion;
 	GDMonoClass *class_Transform3D;
 	GDMonoClass *class_AABB;
 	GDMonoClass *class_Color;

modules/mono/mono_gd/gd_mono_field.cpp

@@ -146,8 +146,8 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 				break;
 			}
 
-			if (tclass == CACHED_CLASS(Quat)) {
+			if (tclass == CACHED_CLASS(Quaternion)) {
-				GDMonoMarshal::M_Quat from = MARSHALLED_OUT(Quat, p_value.operator ::Quat());
+				GDMonoMarshal::M_Quaternion from = MARSHALLED_OUT(Quaternion, p_value.operator ::Quaternion());
 				mono_field_set_value(p_object, mono_field, &from);
 				break;
 			}
@@ -336,8 +336,8 @@ void GDMonoField::set_value_from_variant(MonoObject *p_object, const Variant &p_
 					GDMonoMarshal::M_Plane from = MARSHALLED_OUT(Plane, p_value.operator ::Plane());
 					mono_field_set_value(p_object, mono_field, &from);
 				} break;
-				case Variant::QUAT: {
+				case Variant::QUATERNION: {
-					GDMonoMarshal::M_Quat from = MARSHALLED_OUT(Quat, p_value.operator ::Quat());
+					GDMonoMarshal::M_Quaternion from = MARSHALLED_OUT(Quaternion, p_value.operator ::Quaternion());
 					mono_field_set_value(p_object, mono_field, &from);
 				} break;
 				case Variant::AABB: {

modules/mono/mono_gd/gd_mono_marshal.cpp

@@ -104,8 +104,8 @@ Variant::Type managed_to_variant_type(const ManagedType &p_type, bool *r_nil_is_
 				return Variant::BASIS;
 			}
 
-			if (vtclass == CACHED_CLASS(Quat)) {
+			if (vtclass == CACHED_CLASS(Quaternion)) {
-				return Variant::QUAT;
+				return Variant::QUATERNION;
 			}
 
 			if (vtclass == CACHED_CLASS(Transform3D)) {
@@ -508,9 +508,9 @@ MonoObject *variant_to_mono_object(const Variant &p_var) {
 			GDMonoMarshal::M_Plane from = MARSHALLED_OUT(Plane, p_var.operator ::Plane());
 			return mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(Plane), &from);
 		}
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			GDMonoMarshal::M_Quat from = MARSHALLED_OUT(Quat, p_var.operator ::Quat());
+			GDMonoMarshal::M_Quaternion from = MARSHALLED_OUT(Quaternion, p_var.operator ::Quaternion());
-			return mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(Quat), &from);
+			return mono_value_box(mono_domain_get(), CACHED_CLASS_RAW(Quaternion), &from);
 		}
 		case Variant::AABB: {
 			GDMonoMarshal::M_AABB from = MARSHALLED_OUT(AABB, p_var.operator ::AABB());
@@ -619,7 +619,7 @@ size_t variant_get_managed_unboxed_size(const ManagedType &p_type) {
 			RETURN_CHECK_FOR_STRUCT(Vector3);
 			RETURN_CHECK_FOR_STRUCT(Vector3i);
 			RETURN_CHECK_FOR_STRUCT(Basis);
-			RETURN_CHECK_FOR_STRUCT(Quat);
+			RETURN_CHECK_FOR_STRUCT(Quaternion);
 			RETURN_CHECK_FOR_STRUCT(Transform3D);
 			RETURN_CHECK_FOR_STRUCT(AABB);
 			RETURN_CHECK_FOR_STRUCT(Color);
@@ -724,7 +724,7 @@ void *variant_to_managed_unboxed(const Variant &p_var, const ManagedType &p_type
 			RETURN_CHECK_FOR_STRUCT(Vector3);
 			RETURN_CHECK_FOR_STRUCT(Vector3i);
 			RETURN_CHECK_FOR_STRUCT(Basis);
-			RETURN_CHECK_FOR_STRUCT(Quat);
+			RETURN_CHECK_FOR_STRUCT(Quaternion);
 			RETURN_CHECK_FOR_STRUCT(Transform3D);
 			RETURN_CHECK_FOR_STRUCT(AABB);
 			RETURN_CHECK_FOR_STRUCT(Color);
@@ -880,7 +880,7 @@ MonoObject *variant_to_mono_object(const Variant &p_var, const ManagedType &p_ty
 			RETURN_CHECK_FOR_STRUCT(Vector3);
 			RETURN_CHECK_FOR_STRUCT(Vector3i);
 			RETURN_CHECK_FOR_STRUCT(Basis);
-			RETURN_CHECK_FOR_STRUCT(Quat);
+			RETURN_CHECK_FOR_STRUCT(Quaternion);
 			RETURN_CHECK_FOR_STRUCT(Transform3D);
 			RETURN_CHECK_FOR_STRUCT(AABB);
 			RETURN_CHECK_FOR_STRUCT(Color);
@@ -1036,8 +1036,8 @@ Variant mono_object_to_variant_impl(MonoObject *p_obj, const ManagedType &p_type
 				return MARSHALLED_IN(Basis, unbox_addr<GDMonoMarshal::M_Basis>(p_obj));
 			}
 
-			if (vtclass == CACHED_CLASS(Quat)) {
+			if (vtclass == CACHED_CLASS(Quaternion)) {
-				return MARSHALLED_IN(Quat, unbox_addr<GDMonoMarshal::M_Quat>(p_obj));
+				return MARSHALLED_IN(Quaternion, unbox_addr<GDMonoMarshal::M_Quaternion>(p_obj));
 			}
 
 			if (vtclass == CACHED_CLASS(Transform3D)) {

modules/mono/mono_gd/gd_mono_marshal.h

@@ -263,11 +263,11 @@ enum {
 
 	MATCHES_Basis = (MATCHES_Vector3 && (sizeof(Basis) == (sizeof(Vector3) * 3))), // No field offset required, it stores an array
 
-	MATCHES_Quat = (MATCHES_real_t && (sizeof(Quat) == (sizeof(real_t) * 4)) &&
+	MATCHES_Quaternion = (MATCHES_real_t && (sizeof(Quaternion) == (sizeof(real_t) * 4)) &&
-					offsetof(Quat, x) == (sizeof(real_t) * 0) &&
+						  offsetof(Quaternion, x) == (sizeof(real_t) * 0) &&
-					offsetof(Quat, y) == (sizeof(real_t) * 1) &&
+						  offsetof(Quaternion, y) == (sizeof(real_t) * 1) &&
-					offsetof(Quat, z) == (sizeof(real_t) * 2) &&
+						  offsetof(Quaternion, z) == (sizeof(real_t) * 2) &&
-					offsetof(Quat, w) == (sizeof(real_t) * 3)),
+						  offsetof(Quaternion, w) == (sizeof(real_t) * 3)),
 
 	MATCHES_Transform3D = (MATCHES_Basis && MATCHES_Vector3 && (sizeof(Transform3D) == (sizeof(Basis) + sizeof(Vector3))) &&
 						   offsetof(Transform3D, basis) == 0 &&
@@ -292,7 +292,7 @@ enum {
 #ifdef GD_MONO_FORCE_INTEROP_STRUCT_COPY
 /* clang-format off */
 static_assert(MATCHES_Vector2 && MATCHES_Rect2 && MATCHES_Transform2D && MATCHES_Vector3 &&
-				MATCHES_Basis && MATCHES_Quat && MATCHES_Transform3D && MATCHES_AABB && MATCHES_Color &&
+				MATCHES_Basis && MATCHES_Quaternion && MATCHES_Transform3D && MATCHES_AABB && MATCHES_Color &&
 				MATCHES_Plane && MATCHES_Vector2i && MATCHES_Rect2i && MATCHES_Vector3i);
 /* clang-format on */
 #endif
@@ -420,15 +420,15 @@ struct M_Basis {
 	}
 };
 
-struct M_Quat {
+struct M_Quaternion {
 	real_t x, y, z, w;
 
-	static _FORCE_INLINE_ Quat convert_to(const M_Quat &p_from) {
+	static _FORCE_INLINE_ Quaternion convert_to(const M_Quaternion &p_from) {
-		return Quat(p_from.x, p_from.y, p_from.z, p_from.w);
+		return Quaternion(p_from.x, p_from.y, p_from.z, p_from.w);
 	}
 
-	static _FORCE_INLINE_ M_Quat convert_from(const Quat &p_from) {
+	static _FORCE_INLINE_ M_Quaternion convert_from(const Quaternion &p_from) {
-		M_Quat ret = { p_from.x, p_from.y, p_from.z, p_from.w };
+		M_Quaternion ret = { p_from.x, p_from.y, p_from.z, p_from.w };
 		return ret;
 	}
 };
@@ -533,7 +533,7 @@ DECL_TYPE_MARSHAL_TEMPLATES(Transform2D)
 DECL_TYPE_MARSHAL_TEMPLATES(Vector3)
 DECL_TYPE_MARSHAL_TEMPLATES(Vector3i)
 DECL_TYPE_MARSHAL_TEMPLATES(Basis)
-DECL_TYPE_MARSHAL_TEMPLATES(Quat)
+DECL_TYPE_MARSHAL_TEMPLATES(Quaternion)
 DECL_TYPE_MARSHAL_TEMPLATES(Transform3D)
 DECL_TYPE_MARSHAL_TEMPLATES(AABB)
 DECL_TYPE_MARSHAL_TEMPLATES(Color)

modules/visual_script/visual_script_editor.cpp

@@ -381,7 +381,7 @@ static Color _color_from_type(Variant::Type p_type, bool dark_theme = true) {
 			case Variant::PLANE:
 				color = Color(0.97, 0.44, 0.44);
 				break;
-			case Variant::QUAT:
+			case Variant::QUATERNION:
 				color = Color(0.93, 0.41, 0.64);
 				break;
 			case Variant::AABB:
@@ -487,7 +487,7 @@ static Color _color_from_type(Variant::Type p_type, bool dark_theme = true) {
 			case Variant::PLANE:
 				color = Color(0.97, 0.44, 0.44);
 				break;
-			case Variant::QUAT:
+			case Variant::QUATERNION:
 				color = Color(0.93, 0.41, 0.64);
 				break;
 			case Variant::AABB:

modules/visual_script/visual_script_nodes.cpp

@@ -3918,7 +3918,7 @@ void register_visual_script_nodes() {
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::RECT2I), create_node_deconst_typed<Variant::Type::RECT2I>);
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::TRANSFORM2D), create_node_deconst_typed<Variant::Type::TRANSFORM2D>);
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::PLANE), create_node_deconst_typed<Variant::Type::PLANE>);
-	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::QUAT), create_node_deconst_typed<Variant::Type::QUAT>);
+	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::QUATERNION), create_node_deconst_typed<Variant::Type::QUATERNION>);
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::AABB), create_node_deconst_typed<Variant::Type::AABB>);
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::BASIS), create_node_deconst_typed<Variant::Type::BASIS>);
 	VisualScriptLanguage::singleton->add_register_func("functions/deconstruct/" + Variant::get_type_name(Variant::Type::TRANSFORM3D), create_node_deconst_typed<Variant::Type::TRANSFORM3D>);

platform/windows/godot.natvis

@@ -46,7 +46,7 @@
 		<DisplayString Condition="type == Variant::RECT2">{*(Rect2 *)_data._mem}</DisplayString>
 		<DisplayString Condition="type == Variant::VECTOR3">{*(Vector3 *)_data._mem}</DisplayString>
 		<DisplayString Condition="type == Variant::PLANE">{*(Plane *)_data._mem}</DisplayString>
-		<DisplayString Condition="type == Variant::QUAT">{*(Quat *)_data._mem}</DisplayString>
+		<DisplayString Condition="type == Variant::QUATERNION">{*(Quaternion *)_data._mem}</DisplayString>
 		<DisplayString Condition="type == Variant::COLOR">{*(Color *)_data._mem}</DisplayString>
 		<DisplayString Condition="type == Variant::NODE_PATH">{*(NodePath *)_data._mem}</DisplayString>
 		<DisplayString Condition="type == Variant::RID">{*(::RID *)_data._mem}</DisplayString>
@@ -78,7 +78,7 @@
 			<Item Name="[value]" Condition="type == Variant::RECT2">*(Rect2 *)_data._mem</Item>
 			<Item Name="[value]" Condition="type == Variant::VECTOR3">*(Vector3 *)_data._mem</Item>
 			<Item Name="[value]" Condition="type == Variant::PLANE">*(Plane *)_data._mem</Item>
-			<Item Name="[value]" Condition="type == Variant::QUAT">*(Quat *)_data._mem</Item>
+			<Item Name="[value]" Condition="type == Variant::QUATERNION">*(Quaternion *)_data._mem</Item>
 			<Item Name="[value]" Condition="type == Variant::COLOR">*(Color *)_data._mem</Item>
 			<Item Name="[value]" Condition="type == Variant::NODE_PATH">*(NodePath *)_data._mem</Item>
 			<Item Name="[value]" Condition="type == Variant::RID">*(::RID *)_data._mem</Item>
@@ -128,8 +128,8 @@
 		</Expand>
 	</Type>
 
-	<Type Name="Quat">
+	<Type Name="Quaternion">
-		<DisplayString>Quat {{{x},{y},{z},{w}}}</DisplayString>
+		<DisplayString>Quaternion {{{x},{y},{z},{w}}}</DisplayString>
 		<Expand>
 			<Item Name="x">x</Item>
 			<Item Name="y">y</Item>

scene/animation/animation_cache.cpp

@@ -236,7 +236,7 @@ void AnimationCache::set_all(float p_time, float p_delta) {
 		switch (animation->track_get_type(i)) {
 			case Animation::TYPE_TRANSFORM3D: {
 				Vector3 loc, scale;
-				Quat rot;
+				Quaternion rot;
 				animation->transform_track_interpolate(i, p_time, &loc, &rot, &scale);
 				Transform3D tr(Basis(rot), loc);
 				tr.basis.scale(scale);

scene/animation/animation_player.cpp

@@ -377,7 +377,7 @@ void AnimationPlayer::_animation_process_animation(AnimationData *p_anim, float
 				}
 
 				Vector3 loc;
-				Quat rot;
+				Quaternion rot;
 				Vector3 scale;
 
 				Error err = a->transform_track_interpolate(i, p_time, &loc, &rot, &scale);
@@ -850,7 +850,7 @@ void AnimationPlayer::_animation_update_transforms() {
 			ERR_CONTINUE(nc->accum_pass != accum_pass);
 
 			t.origin = nc->loc_accum;
-			t.basis.set_quat_scale(nc->rot_accum, nc->scale_accum);
+			t.basis.set_quaternion_scale(nc->rot_accum, nc->scale_accum);
 #ifndef _3D_DISABLED
 			if (nc->skeleton && nc->bone_idx >= 0) {
 				nc->skeleton->set_bone_pose(nc->bone_idx, t);

scene/animation/animation_player.h

@@ -102,7 +102,7 @@ private:
 		// accumulated transforms
 
 		Vector3 loc_accum;
-		Quat rot_accum;
+		Quaternion rot_accum;
 		Vector3 scale_accum;
 		uint64_t accum_pass = 0;
 

scene/animation/animation_tree.cpp

@@ -853,7 +853,7 @@ void AnimationTree::_process_graph(float p_delta) {
 							if (t->process_pass != process_pass) {
 								t->process_pass = process_pass;
 								t->loc = Vector3();
-								t->rot = Quat();
+								t->rot = Quaternion();
 								t->rot_blend_accum = 0;
 								t->scale = Vector3(1, 1, 1);
 							}
@@ -868,7 +868,7 @@ void AnimationTree::_process_graph(float p_delta) {
 							}
 
 							Vector3 loc[2];
-							Quat rot[2];
+							Quaternion rot[2];
 							Vector3 scale[2];
 
 							if (prev_time > time) {
@@ -881,7 +881,7 @@ void AnimationTree::_process_graph(float p_delta) {
 
 								t->loc += (loc[1] - loc[0]) * blend;
 								t->scale += (scale[1] - scale[0]) * blend;
-								Quat q = Quat().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
+								Quaternion q = Quaternion().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
 								t->rot = (t->rot * q).normalized();
 
 								prev_time = 0;
@@ -896,14 +896,14 @@ void AnimationTree::_process_graph(float p_delta) {
 
 							t->loc += (loc[1] - loc[0]) * blend;
 							t->scale += (scale[1] - scale[0]) * blend;
-							Quat q = Quat().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
+							Quaternion q = Quaternion().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
 							t->rot = (t->rot * q).normalized();
 
 							prev_time = 0;
 
 						} else {
 							Vector3 loc;
-							Quat rot;
+							Quaternion rot;
 							Vector3 scale;
 
 							Error err = a->transform_track_interpolate(i, time, &loc, &rot, &scale);
@@ -1197,7 +1197,7 @@ void AnimationTree::_process_graph(float p_delta) {
 					Transform3D xform;
 					xform.origin = t->loc;
 
-					xform.basis.set_quat_scale(t->rot, t->scale);
+					xform.basis.set_quaternion_scale(t->rot, t->scale);
 
 					if (t->root_motion) {
 						root_motion_transform = xform;

scene/animation/animation_tree.h

@@ -190,7 +190,7 @@ private:
 #endif // _3D_DISABLED
 		int bone_idx = -1;
 		Vector3 loc;
-		Quat rot;
+		Quaternion rot;
 		float rot_blend_accum = 0.0;
 		Vector3 scale;
 

scene/animation/tween.cpp

@@ -519,11 +519,11 @@ Variant Tween::_run_equation(InterpolateData &p_data) {
 			result = r;
 		} break;
 
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
 			// Get the quaternian for the initial and delta values
-			Quat i = initial_val;
+			Quaternion i = initial_val;
-			Quat d = delta_val;
+			Quaternion d = delta_val;
-			Quat r;
+			Quaternion r;
 
 			// Execute the equation on the quaternian values and mutate the r quaternian
 			// This uses the custom APPLY_EQUATION macro defined above
@@ -1202,9 +1202,9 @@ bool Tween::_calc_delta_val(const Variant &p_initial_val, const Variant &p_final
 			delta_val = d;
 		} break;
 
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 			// Convert to quaternianls and find the delta
-			delta_val = final_val.operator Quat() - initial_val.operator Quat();
+			delta_val = final_val.operator Quaternion() - initial_val.operator Quaternion();
 			break;
 
 		case Variant::AABB: {
@@ -1266,7 +1266,7 @@ bool Tween::_calc_delta_val(const Variant &p_initial_val, const Variant &p_final
 				Variant::RECT2,
 				Variant::VECTOR3,
 				Variant::TRANSFORM2D,
-				Variant::QUAT,
+				Variant::QUATERNION,
 				Variant::AABB,
 				Variant::BASIS,
 				Variant::TRANSFORM3D,

scene/resources/animation.cpp

@@ -361,7 +361,7 @@ bool Animation::_get(const StringName &p_name, Variant &r_ret) const {
 				int idx = 0;
 				for (int i = 0; i < track_get_key_count(track); i++) {
 					Vector3 loc;
-					Quat rot;
+					Quaternion rot;
 					Vector3 scale;
 					transform_track_get_key(track, i, &loc, &rot, &scale);
 
@@ -773,7 +773,7 @@ void Animation::_clear(T &p_keys) {
 	p_keys.clear();
 }
 
-Error Animation::transform_track_get_key(int p_track, int p_key, Vector3 *r_loc, Quat *r_rot, Vector3 *r_scale) const {
+Error Animation::transform_track_get_key(int p_track, int p_key, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const {
 	ERR_FAIL_INDEX_V(p_track, tracks.size(), ERR_INVALID_PARAMETER);
 	Track *t = tracks[p_track];
 
@@ -794,7 +794,7 @@ Error Animation::transform_track_get_key(int p_track, int p_key, Vector3 *r_loc,
 	return OK;
 }
 
-int Animation::transform_track_insert_key(int p_track, float p_time, const Vector3 &p_loc, const Quat &p_rot, const Vector3 &p_scale) {
+int Animation::transform_track_insert_key(int p_track, float p_time, const Vector3 &p_loc, const Quaternion &p_rot, const Vector3 &p_scale) {
 	ERR_FAIL_INDEX_V(p_track, tracks.size(), -1);
 	Track *t = tracks[p_track];
 	ERR_FAIL_COND_V(t->type != TYPE_TRANSFORM3D, -1);
@@ -958,7 +958,7 @@ void Animation::track_insert_key(int p_track, float p_time, const Variant &p_key
 				loc = d["location"];
 			}
 
-			Quat rot;
+			Quaternion rot;
 			if (d.has("rotation")) {
 				rot = d["rotation"];
 			}
@@ -1462,7 +1462,7 @@ Vector3 Animation::_interpolate(const Vector3 &p_a, const Vector3 &p_b, float p_
 	return p_a.lerp(p_b, p_c);
 }
 
-Quat Animation::_interpolate(const Quat &p_a, const Quat &p_b, float p_c) const {
+Quaternion Animation::_interpolate(const Quaternion &p_a, const Quaternion &p_b, float p_c) const {
 	return p_a.slerp(p_b, p_c);
 }
 
@@ -1490,7 +1490,7 @@ Vector3 Animation::_cubic_interpolate(const Vector3 &p_pre_a, const Vector3 &p_a
 	return p_a.cubic_interpolate(p_b, p_pre_a, p_post_b, p_c);
 }
 
-Quat Animation::_cubic_interpolate(const Quat &p_pre_a, const Quat &p_a, const Quat &p_b, const Quat &p_post_b, float p_c) const {
+Quaternion Animation::_cubic_interpolate(const Quaternion &p_pre_a, const Quaternion &p_a, const Quaternion &p_b, const Quaternion &p_post_b, float p_c) const {
 	return p_a.cubic_slerp(p_b, p_pre_a, p_post_b, p_c);
 }
 
@@ -1555,11 +1555,11 @@ Variant Animation::_cubic_interpolate(const Variant &p_pre_a, const Variant &p_a
 
 			return a.cubic_interpolate(b, pa, pb, p_c);
 		}
-		case Variant::QUAT: {
+		case Variant::QUATERNION: {
-			Quat a = p_a;
+			Quaternion a = p_a;
-			Quat b = p_b;
+			Quaternion b = p_b;
-			Quat pa = p_pre_a;
+			Quaternion pa = p_pre_a;
-			Quat pb = p_post_b;
+			Quaternion pb = p_post_b;
 
 			return a.cubic_slerp(b, pa, pb, p_c);
 		}
@@ -1728,7 +1728,7 @@ T Animation::_interpolate(const Vector<TKey<T>> &p_keys, float p_time, Interpola
 	// do a barrel roll
 }
 
-Error Animation::transform_track_interpolate(int p_track, float p_time, Vector3 *r_loc, Quat *r_rot, Vector3 *r_scale) const {
+Error Animation::transform_track_interpolate(int p_track, float p_time, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const {
 	ERR_FAIL_INDEX_V(p_track, tracks.size(), ERR_INVALID_PARAMETER);
 	Track *t = tracks[p_track];
 	ERR_FAIL_COND_V(t->type != TYPE_TRANSFORM3D, ERR_INVALID_PARAMETER);
@@ -2751,9 +2751,9 @@ bool Animation::_transform_track_optimize_key(const TKey<TransformKey> &t0, cons
 
 	{ //rotation
 
-		const Quat &q0 = t0.value.rot;
+		const Quaternion &q0 = t0.value.rot;
-		const Quat &q1 = t1.value.rot;
+		const Quaternion &q1 = t1.value.rot;
-		const Quat &q2 = t2.value.rot;
+		const Quaternion &q2 = t2.value.rot;
 
 		//localize both to rotation from q0
 
@@ -2763,8 +2763,8 @@ bool Animation::_transform_track_optimize_key(const TKey<TransformKey> &t0, cons
 			}
 
 		} else {
-			Quat r02 = (q0.inverse() * q2).normalized();
+			Quaternion r02 = (q0.inverse() * q2).normalized();
-			Quat r01 = (q0.inverse() * q1).normalized();
+			Quaternion r01 = (q0.inverse() * q1).normalized();
 
 			Vector3 v02, v01;
 			real_t a02, a01;

scene/resources/animation.h

@@ -88,7 +88,7 @@ private:
 
 	struct TransformKey {
 		Vector3 loc;
-		Quat rot;
+		Quaternion rot;
 		Vector3 scale;
 	};
 
@@ -186,13 +186,13 @@ private:
 	_FORCE_INLINE_ Animation::TransformKey _interpolate(const Animation::TransformKey &p_a, const Animation::TransformKey &p_b, float p_c) const;
 
 	_FORCE_INLINE_ Vector3 _interpolate(const Vector3 &p_a, const Vector3 &p_b, float p_c) const;
-	_FORCE_INLINE_ Quat _interpolate(const Quat &p_a, const Quat &p_b, float p_c) const;
+	_FORCE_INLINE_ Quaternion _interpolate(const Quaternion &p_a, const Quaternion &p_b, float p_c) const;
 	_FORCE_INLINE_ Variant _interpolate(const Variant &p_a, const Variant &p_b, float p_c) const;
 	_FORCE_INLINE_ float _interpolate(const float &p_a, const float &p_b, float p_c) const;
 
 	_FORCE_INLINE_ Animation::TransformKey _cubic_interpolate(const Animation::TransformKey &p_pre_a, const Animation::TransformKey &p_a, const Animation::TransformKey &p_b, const Animation::TransformKey &p_post_b, float p_c) const;
 	_FORCE_INLINE_ Vector3 _cubic_interpolate(const Vector3 &p_pre_a, const Vector3 &p_a, const Vector3 &p_b, const Vector3 &p_post_b, float p_c) const;
-	_FORCE_INLINE_ Quat _cubic_interpolate(const Quat &p_pre_a, const Quat &p_a, const Quat &p_b, const Quat &p_post_b, float p_c) const;
+	_FORCE_INLINE_ Quaternion _cubic_interpolate(const Quaternion &p_pre_a, const Quaternion &p_a, const Quaternion &p_b, const Quaternion &p_post_b, float p_c) const;
 	_FORCE_INLINE_ Variant _cubic_interpolate(const Variant &p_pre_a, const Variant &p_a, const Variant &p_b, const Variant &p_post_b, float p_c) const;
 	_FORCE_INLINE_ float _cubic_interpolate(const float &p_pre_a, const float &p_a, const float &p_b, const float &p_post_b, float p_c) const;
 
@@ -213,7 +213,7 @@ private:
 private:
 	Array _transform_track_interpolate(int p_track, float p_time) const {
 		Vector3 loc;
-		Quat rot;
+		Quaternion rot;
 		Vector3 scale;
 		transform_track_interpolate(p_track, p_time, &loc, &rot, &scale);
 		Array ret;
@@ -291,8 +291,8 @@ public:
 	float track_get_key_time(int p_track, int p_key_idx) const;
 	float track_get_key_transition(int p_track, int p_key_idx) const;
 
-	int transform_track_insert_key(int p_track, float p_time, const Vector3 &p_loc, const Quat &p_rot = Quat(), const Vector3 &p_scale = Vector3());
+	int transform_track_insert_key(int p_track, float p_time, const Vector3 &p_loc, const Quaternion &p_rot = Quaternion(), const Vector3 &p_scale = Vector3());
-	Error transform_track_get_key(int p_track, int p_key, Vector3 *r_loc, Quat *r_rot, Vector3 *r_scale) const;
+	Error transform_track_get_key(int p_track, int p_key, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const;
 	void track_set_interpolation_type(int p_track, InterpolationType p_interp);
 	InterpolationType track_get_interpolation_type(int p_track) const;
 
@@ -321,7 +321,7 @@ public:
 	void track_set_interpolation_loop_wrap(int p_track, bool p_enable);
 	bool track_get_interpolation_loop_wrap(int p_track) const;
 
-	Error transform_track_interpolate(int p_track, float p_time, Vector3 *r_loc, Quat *r_rot, Vector3 *r_scale) const;
+	Error transform_track_interpolate(int p_track, float p_time, Vector3 *r_loc, Quaternion *r_rot, Vector3 *r_scale) const;
 
 	Variant value_track_interpolate(int p_track, float p_time) const;
 	void value_track_get_key_indices(int p_track, float p_time, float p_delta, List<int> *p_indices) const;

servers/physics_3d/joints/cone_twist_joint_3d_sw.cpp

@@ -211,7 +211,7 @@ bool ConeTwistJoint3DSW::setup(real_t p_timestep) {
 	// Twist limits
 	if (m_twistSpan >= real_t(0.)) {
 		Vector3 b2Axis22 = B->get_transform().basis.xform(this->m_rbBFrame.basis.get_axis(1));
-		Quat rotationArc = Quat(b2Axis1, b1Axis1);
+		Quaternion rotationArc = Quaternion(b2Axis1, b1Axis1);
 		Vector3 TwistRef = rotationArc.xform(b2Axis22);
 		real_t twist = atan2fast(TwistRef.dot(b1Axis3), TwistRef.dot(b1Axis2));
 

servers/physics_3d/joints/hinge_joint_3d_sw.cpp

@@ -126,7 +126,7 @@ HingeJoint3DSW::HingeJoint3DSW(Body3DSW *rbA, Body3DSW *rbB, const Vector3 &pivo
 			rbAxisA1.y, rbAxisA2.y, axisInA.y,
 			rbAxisA1.z, rbAxisA2.z, axisInA.z);
 
-	Quat rotationArc = Quat(axisInA, axisInB);
+	Quaternion rotationArc = Quaternion(axisInA, axisInB);
 	Vector3 rbAxisB1 = rotationArc.xform(rbAxisA1);
 	Vector3 rbAxisB2 = axisInB.cross(rbAxisB1);
 

servers/rendering/renderer_rd/renderer_storage_rd.cpp

@@ -1878,8 +1878,8 @@ _FORCE_INLINE_ static void _fill_std140_variant_ubo_value(ShaderLanguage::DataTy
 				gui[1] = v.position.y;
 				gui[2] = v.size.x;
 				gui[3] = v.size.y;
-			} else if (value.get_type() == Variant::QUAT) {
+			} else if (value.get_type() == Variant::QUATERNION) {
-				Quat v = value;
+				Quaternion v = value;
 
 				gui[0] = v.x;
 				gui[1] = v.y;

tests/test_class_db.h

@@ -243,7 +243,7 @@ bool arg_default_value_is_assignable_to_type(const Context &p_context, const Var
 		case Variant::TRANSFORM3D:
 		case Variant::TRANSFORM2D:
 		case Variant::BASIS:
-		case Variant::QUAT:
+		case Variant::QUATERNION:
 		case Variant::PLANE:
 		case Variant::AABB:
 		case Variant::COLOR:

tests/test_macros.h

@@ -91,7 +91,7 @@ DOCTEST_STRINGIFY_VARIANT(Vector3);
 DOCTEST_STRINGIFY_VARIANT(Vector3i);
 DOCTEST_STRINGIFY_VARIANT(Transform2D);
 DOCTEST_STRINGIFY_VARIANT(Plane);
-DOCTEST_STRINGIFY_VARIANT(Quat);
+DOCTEST_STRINGIFY_VARIANT(Quaternion);
 DOCTEST_STRINGIFY_VARIANT(AABB);
 DOCTEST_STRINGIFY_VARIANT(Basis);
 DOCTEST_STRINGIFY_VARIANT(Transform3D);

tests/test_math.cpp

@@ -599,13 +599,13 @@ MainLoop *test() {
 
 		Basis m2(v2, a2);
 
-		Quat q = m;
+		Quaternion q = m;
-		Quat q2 = m2;
+		Quaternion q2 = m2;
 
 		Basis m3 = m.inverse() * m2;
-		Quat q3 = (q.inverse() * q2); //.normalized();
+		Quaternion q3 = (q.inverse() * q2); //.normalized();
 
-		print_line(Quat(m3));
+		print_line(Quaternion(m3));
 		print_line(q3);
 
 		print_line("before v: " + v + " a: " + rtos(a));

tests/test_validate_testing.h

@@ -84,7 +84,7 @@ TEST_SUITE("Validate tests") {
 		Plane plane(Vector3(1, 1, 1), 1.0);
 		INFO(plane);
 
-		Quat quat(Vector3(0.5, 1.0, 2.0));
+		Quaternion quat(Vector3(0.5, 1.0, 2.0));
 		INFO(quat);
 
 		AABB aabb(Vector3(), Vector3(100, 100, 100));