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godot/scene/3d/xr_nodes.cpp

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/**************************************************************************/
/* xr_nodes.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "xr_nodes.h"
#include "core/config/project_settings.h"
#include "scene/main/viewport.h"
#include "servers/xr/xr_interface.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
void XRCamera3D::_bind_tracker() {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
tracker = xr_server->get_tracker(tracker_name);
if (tracker.is_valid()) {
tracker->connect("pose_changed", callable_mp(this, &XRCamera3D::_pose_changed));
Ref<XRPose> pose = tracker->get_pose(pose_name);
if (pose.is_valid()) {
set_transform(pose->get_adjusted_transform());
}
}
}
void XRCamera3D::_unbind_tracker() {
if (tracker.is_valid()) {
tracker->disconnect("pose_changed", callable_mp(this, &XRCamera3D::_pose_changed));
}
tracker.unref();
}
void XRCamera3D::_changed_tracker(const StringName &p_tracker_name, int p_tracker_type) {
if (p_tracker_name == tracker_name) {
_bind_tracker();
}
}
void XRCamera3D::_removed_tracker(const StringName &p_tracker_name, int p_tracker_type) {
if (p_tracker_name == tracker_name) {
_unbind_tracker();
}
}
void XRCamera3D::_pose_changed(const Ref<XRPose> &p_pose) {
if (p_pose->get_name() == pose_name) {
set_transform(p_pose->get_adjusted_transform());
}
}
PackedStringArray XRCamera3D::get_configuration_warnings() const {
PackedStringArray warnings = Camera3D::get_configuration_warnings();
if (is_visible() && is_inside_tree()) {
// Warn if the node has a parent which isn't an XROrigin3D!
Node *parent = get_parent();
XROrigin3D *origin = Object::cast_to<XROrigin3D>(parent);
if (parent && origin == nullptr) {
warnings.push_back(RTR("XRCamera3D may not function as expected without an XROrigin3D node as its parent."));
};
}
return warnings;
};
Vector3 XRCamera3D::project_local_ray_normal(const Point2 &p_pos) const {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, Vector3());
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera3D::project_local_ray_normal(p_pos);
}
ERR_FAIL_COND_V_MSG(!is_inside_tree(), Vector3(), "Camera is not inside scene.");
Size2 viewport_size = get_viewport()->get_camera_rect_size();
Vector2 cpos = get_viewport()->get_camera_coords(p_pos);
Vector3 ray;
// Just use the first view, if multiple views are supported this function has no good result
Projection cm = xr_interface->get_projection_for_view(0, viewport_size.aspect(), get_near(), get_far());
Vector2 screen_he = cm.get_viewport_half_extents();
ray = Vector3(((cpos.x / viewport_size.width) * 2.0 - 1.0) * screen_he.x, ((1.0 - (cpos.y / viewport_size.height)) * 2.0 - 1.0) * screen_he.y, -get_near()).normalized();
return ray;
};
Point2 XRCamera3D::unproject_position(const Vector3 &p_pos) const {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, Vector2());
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera3D::unproject_position(p_pos);
}
ERR_FAIL_COND_V_MSG(!is_inside_tree(), Vector2(), "Camera is not inside scene.");
Size2 viewport_size = get_viewport()->get_visible_rect().size;
// Just use the first view, if multiple views are supported this function has no good result
Projection cm = xr_interface->get_projection_for_view(0, viewport_size.aspect(), get_near(), get_far());
Plane p(get_camera_transform().xform_inv(p_pos), 1.0);
p = cm.xform4(p);
p.normal /= p.d;
Point2 res;
res.x = (p.normal.x * 0.5 + 0.5) * viewport_size.x;
res.y = (-p.normal.y * 0.5 + 0.5) * viewport_size.y;
return res;
};
Vector3 XRCamera3D::project_position(const Point2 &p_point, real_t p_z_depth) const {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, Vector3());
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera3D::project_position(p_point, p_z_depth);
}
ERR_FAIL_COND_V_MSG(!is_inside_tree(), Vector3(), "Camera is not inside scene.");
Size2 viewport_size = get_viewport()->get_visible_rect().size;
// Just use the first view, if multiple views are supported this function has no good result
Projection cm = xr_interface->get_projection_for_view(0, viewport_size.aspect(), get_near(), get_far());
Vector2 vp_he = cm.get_viewport_half_extents();
Vector2 point;
point.x = (p_point.x / viewport_size.x) * 2.0 - 1.0;
point.y = (1.0 - (p_point.y / viewport_size.y)) * 2.0 - 1.0;
point *= vp_he;
Vector3 p(point.x, point.y, -p_z_depth);
return get_camera_transform().xform(p);
};
Vector<Plane> XRCamera3D::get_frustum() const {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, Vector<Plane>());
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_null()) {
// we might be in the editor or have VR turned off, just call superclass
return Camera3D::get_frustum();
}
ERR_FAIL_COND_V(!is_inside_world(), Vector<Plane>());
Size2 viewport_size = get_viewport()->get_visible_rect().size;
// TODO Just use the first view for now, this is mostly for debugging so we may look into using our combined projection here.
Projection cm = xr_interface->get_projection_for_view(0, viewport_size.aspect(), get_near(), get_far());
return cm.get_projection_planes(get_camera_transform());
};
XRCamera3D::XRCamera3D() {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->connect("tracker_added", callable_mp(this, &XRCamera3D::_changed_tracker));
xr_server->connect("tracker_updated", callable_mp(this, &XRCamera3D::_changed_tracker));
xr_server->connect("tracker_removed", callable_mp(this, &XRCamera3D::_removed_tracker));
// check if our tracker already exists and if so, bind it...
_bind_tracker();
}
XRCamera3D::~XRCamera3D() {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->disconnect("tracker_added", callable_mp(this, &XRCamera3D::_changed_tracker));
xr_server->disconnect("tracker_updated", callable_mp(this, &XRCamera3D::_changed_tracker));
xr_server->disconnect("tracker_removed", callable_mp(this, &XRCamera3D::_removed_tracker));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
// XRNode3D is a node that has it's transform updated by an XRPositionalTracker.
// Note that trackers are only available in runtime and only after an XRInterface registers one.
// So we bind by name and as long as a tracker isn't available, our node remains inactive.
void XRNode3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_tracker", "tracker_name"), &XRNode3D::set_tracker);
ClassDB::bind_method(D_METHOD("get_tracker"), &XRNode3D::get_tracker);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "tracker", PROPERTY_HINT_ENUM_SUGGESTION), "set_tracker", "get_tracker");
ClassDB::bind_method(D_METHOD("set_pose_name", "pose"), &XRNode3D::set_pose_name);
ClassDB::bind_method(D_METHOD("get_pose_name"), &XRNode3D::get_pose_name);
ADD_PROPERTY(PropertyInfo(Variant::STRING, "pose", PROPERTY_HINT_ENUM_SUGGESTION), "set_pose_name", "get_pose_name");
ClassDB::bind_method(D_METHOD("set_show_when_tracked", "show"), &XRNode3D::set_show_when_tracked);
ClassDB::bind_method(D_METHOD("get_show_when_tracked"), &XRNode3D::get_show_when_tracked);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "show_when_tracked"), "set_show_when_tracked", "get_show_when_tracked");
ClassDB::bind_method(D_METHOD("get_is_active"), &XRNode3D::get_is_active);
ClassDB::bind_method(D_METHOD("get_has_tracking_data"), &XRNode3D::get_has_tracking_data);
ClassDB::bind_method(D_METHOD("get_pose"), &XRNode3D::get_pose);
ClassDB::bind_method(D_METHOD("trigger_haptic_pulse", "action_name", "frequency", "amplitude", "duration_sec", "delay_sec"), &XRNode3D::trigger_haptic_pulse);
ADD_SIGNAL(MethodInfo("tracking_changed", PropertyInfo(Variant::BOOL, "tracking")));
};
void XRNode3D::_validate_property(PropertyInfo &p_property) const {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
if (p_property.name == "tracker") {
PackedStringArray names = xr_server->get_suggested_tracker_names();
String hint_string;
for (const String &name : names) {
hint_string += name + ",";
}
p_property.hint_string = hint_string;
} else if (p_property.name == "pose") {
PackedStringArray names = xr_server->get_suggested_pose_names(tracker_name);
String hint_string;
for (const String &name : names) {
hint_string += name + ",";
}
p_property.hint_string = hint_string;
}
}
void XRNode3D::set_tracker(const StringName &p_tracker_name) {
if (tracker.is_valid() && tracker->get_tracker_name() == p_tracker_name) {
// didn't change
return;
}
// just in case
_unbind_tracker();
// copy the name
tracker_name = p_tracker_name;
pose_name = "default";
// see if it's already available
_bind_tracker();
update_configuration_warnings();
notify_property_list_changed();
}
StringName XRNode3D::get_tracker() const {
return tracker_name;
}
void XRNode3D::set_pose_name(const StringName &p_pose_name) {
pose_name = p_pose_name;
// Update pose if we are bound to a tracker with a valid pose
Ref<XRPose> pose = get_pose();
if (pose.is_valid()) {
set_transform(pose->get_adjusted_transform());
}
}
StringName XRNode3D::get_pose_name() const {
return pose_name;
}
void XRNode3D::set_show_when_tracked(bool p_show) {
show_when_tracked = p_show;
_update_visibility();
}
bool XRNode3D::get_show_when_tracked() const {
return show_when_tracked;
}
bool XRNode3D::get_is_active() const {
if (tracker.is_null()) {
return false;
} else if (!tracker->has_pose(pose_name)) {
return false;
} else {
return true;
}
}
bool XRNode3D::get_has_tracking_data() const {
return has_tracking_data;
}
void XRNode3D::trigger_haptic_pulse(const String &p_action_name, double p_frequency, double p_amplitude, double p_duration_sec, double p_delay_sec) {
// TODO need to link trackers to the interface that registered them so we can call this on the correct interface.
// For now this works fine as in 99% of the cases we only have our primary interface active
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_valid()) {
xr_interface->trigger_haptic_pulse(p_action_name, tracker_name, p_frequency, p_amplitude, p_duration_sec, p_delay_sec);
}
}
}
Ref<XRPose> XRNode3D::get_pose() {
if (tracker.is_valid()) {
return tracker->get_pose(pose_name);
} else {
return Ref<XRPose>();
}
}
void XRNode3D::_bind_tracker() {
ERR_FAIL_COND_MSG(tracker.is_valid(), "Unbind the current tracker first");
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
tracker = xr_server->get_tracker(tracker_name);
if (tracker.is_null()) {
// It is possible and valid if the tracker isn't available (yet), in this case we just exit
return;
}
tracker->connect("pose_changed", callable_mp(this, &XRNode3D::_pose_changed));
tracker->connect("pose_lost_tracking", callable_mp(this, &XRNode3D::_pose_lost_tracking));
Ref<XRPose> pose = get_pose();
if (pose.is_valid()) {
set_transform(pose->get_adjusted_transform());
_set_has_tracking_data(pose->get_has_tracking_data());
} else {
// Pose has been invalidated or was never set.
_set_has_tracking_data(false);
}
}
}
void XRNode3D::_unbind_tracker() {
if (tracker.is_valid()) {
tracker->disconnect("pose_changed", callable_mp(this, &XRNode3D::_pose_changed));
tracker->disconnect("pose_lost_tracking", callable_mp(this, &XRNode3D::_pose_lost_tracking));
tracker.unref();
_set_has_tracking_data(false);
}
}
void XRNode3D::_changed_tracker(const StringName &p_tracker_name, int p_tracker_type) {
if (tracker_name == p_tracker_name) {
// just in case unref our current tracker
_unbind_tracker();
// get our new tracker
_bind_tracker();
}
}
void XRNode3D::_removed_tracker(const StringName &p_tracker_name, int p_tracker_type) {
if (tracker_name == p_tracker_name) {
// unref our tracker, it's no longer available
_unbind_tracker();
}
}
void XRNode3D::_pose_changed(const Ref<XRPose> &p_pose) {
if (p_pose.is_valid() && p_pose->get_name() == pose_name) {
set_transform(p_pose->get_adjusted_transform());
_set_has_tracking_data(p_pose->get_has_tracking_data());
}
}
void XRNode3D::_pose_lost_tracking(const Ref<XRPose> &p_pose) {
if (p_pose.is_valid() && p_pose->get_name() == pose_name) {
_set_has_tracking_data(false);
}
}
void XRNode3D::_set_has_tracking_data(bool p_has_tracking_data) {
// Always update our visibility, we may have set our tracking data
// when conditions weren't right.
_update_visibility();
// Ignore if the has_tracking_data state isn't changing.
if (p_has_tracking_data == has_tracking_data) {
return;
}
// Handle change of has_tracking_data.
has_tracking_data = p_has_tracking_data;
emit_signal(SNAME("tracking_changed"), has_tracking_data);
}
void XRNode3D::_update_visibility() {
// If configured, show or hide the node based on tracking data.
if (show_when_tracked) {
// Only react to this if we have a primary interface.
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
Ref<XRInterface> xr_interface = xr_server->get_primary_interface();
if (xr_interface.is_valid()) {
set_visible(has_tracking_data);
}
}
}
}
XRNode3D::XRNode3D() {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->connect("tracker_added", callable_mp(this, &XRNode3D::_changed_tracker));
xr_server->connect("tracker_updated", callable_mp(this, &XRNode3D::_changed_tracker));
xr_server->connect("tracker_removed", callable_mp(this, &XRNode3D::_removed_tracker));
}
XRNode3D::~XRNode3D() {
_unbind_tracker();
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->disconnect("tracker_added", callable_mp(this, &XRNode3D::_changed_tracker));
xr_server->disconnect("tracker_updated", callable_mp(this, &XRNode3D::_changed_tracker));
xr_server->disconnect("tracker_removed", callable_mp(this, &XRNode3D::_removed_tracker));
}
PackedStringArray XRNode3D::get_configuration_warnings() const {
PackedStringArray warnings = Node3D::get_configuration_warnings();
if (is_visible() && is_inside_tree()) {
// Warn if the node has a parent which isn't an XROrigin3D!
Node *parent = get_parent();
XROrigin3D *origin = Object::cast_to<XROrigin3D>(parent);
if (parent && origin == nullptr) {
warnings.push_back(RTR("XRNode3D may not function as expected without an XROrigin3D node as its parent."));
};
if (tracker_name == "") {
warnings.push_back(RTR("No tracker name is set."));
}
if (pose_name == "") {
warnings.push_back(RTR("No pose is set."));
}
}
return warnings;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void XRController3D::_bind_methods() {
// passthroughs to information about our related joystick
ClassDB::bind_method(D_METHOD("is_button_pressed", "name"), &XRController3D::is_button_pressed);
ClassDB::bind_method(D_METHOD("get_input", "name"), &XRController3D::get_input);
ClassDB::bind_method(D_METHOD("get_float", "name"), &XRController3D::get_float);
ClassDB::bind_method(D_METHOD("get_vector2", "name"), &XRController3D::get_vector2);
ClassDB::bind_method(D_METHOD("get_tracker_hand"), &XRController3D::get_tracker_hand);
ADD_SIGNAL(MethodInfo("button_pressed", PropertyInfo(Variant::STRING, "name")));
ADD_SIGNAL(MethodInfo("button_released", PropertyInfo(Variant::STRING, "name")));
ADD_SIGNAL(MethodInfo("input_float_changed", PropertyInfo(Variant::STRING, "name"), PropertyInfo(Variant::FLOAT, "value")));
ADD_SIGNAL(MethodInfo("input_vector2_changed", PropertyInfo(Variant::STRING, "name"), PropertyInfo(Variant::VECTOR2, "value")));
ADD_SIGNAL(MethodInfo("profile_changed", PropertyInfo(Variant::STRING, "role")));
};
void XRController3D::_bind_tracker() {
XRNode3D::_bind_tracker();
if (tracker.is_valid()) {
// bind to input signals
tracker->connect("button_pressed", callable_mp(this, &XRController3D::_button_pressed));
tracker->connect("button_released", callable_mp(this, &XRController3D::_button_released));
tracker->connect("input_float_changed", callable_mp(this, &XRController3D::_input_float_changed));
tracker->connect("input_vector2_changed", callable_mp(this, &XRController3D::_input_vector2_changed));
tracker->connect("profile_changed", callable_mp(this, &XRController3D::_profile_changed));
}
}
void XRController3D::_unbind_tracker() {
if (tracker.is_valid()) {
// unbind input signals
tracker->disconnect("button_pressed", callable_mp(this, &XRController3D::_button_pressed));
tracker->disconnect("button_released", callable_mp(this, &XRController3D::_button_released));
tracker->disconnect("input_float_changed", callable_mp(this, &XRController3D::_input_float_changed));
tracker->disconnect("input_vector2_changed", callable_mp(this, &XRController3D::_input_vector2_changed));
tracker->disconnect("profile_changed", callable_mp(this, &XRController3D::_profile_changed));
}
XRNode3D::_unbind_tracker();
}
void XRController3D::_button_pressed(const String &p_name) {
emit_signal(SNAME("button_pressed"), p_name);
}
void XRController3D::_button_released(const String &p_name) {
emit_signal(SNAME("button_released"), p_name);
}
void XRController3D::_input_float_changed(const String &p_name, float p_value) {
emit_signal(SNAME("input_float_changed"), p_name, p_value);
}
void XRController3D::_input_vector2_changed(const String &p_name, Vector2 p_value) {
emit_signal(SNAME("input_vector2_changed"), p_name, p_value);
}
void XRController3D::_profile_changed(const String &p_role) {
emit_signal(SNAME("profile_changed"), p_role);
}
bool XRController3D::is_button_pressed(const StringName &p_name) const {
if (tracker.is_valid()) {
// Inputs should already be of the correct type, our XR runtime handles conversions between raw input and the desired type
bool pressed = tracker->get_input(p_name);
return pressed;
} else {
return false;
}
}
Variant XRController3D::get_input(const StringName &p_name) const {
if (tracker.is_valid()) {
return tracker->get_input(p_name);
} else {
return Variant();
}
}
float XRController3D::get_float(const StringName &p_name) const {
if (tracker.is_valid()) {
// Inputs should already be of the correct type, our XR runtime handles conversions between raw input and the desired type, but just in case we convert
Variant input = tracker->get_input(p_name);
switch (input.get_type()) {
case Variant::BOOL: {
bool value = input;
return value ? 1.0 : 0.0;
} break;
case Variant::FLOAT: {
float value = input;
return value;
} break;
default:
return 0.0;
};
} else {
return 0.0;
}
}
Vector2 XRController3D::get_vector2(const StringName &p_name) const {
if (tracker.is_valid()) {
// Inputs should already be of the correct type, our XR runtime handles conversions between raw input and the desired type, but just in case we convert
Variant input = tracker->get_input(p_name);
switch (input.get_type()) {
case Variant::BOOL: {
bool value = input;
return Vector2(value ? 1.0 : 0.0, 0.0);
} break;
case Variant::FLOAT: {
float value = input;
return Vector2(value, 0.0);
} break;
case Variant::VECTOR2: {
Vector2 axis = input;
return axis;
}
default:
return Vector2();
}
} else {
return Vector2();
}
}
XRPositionalTracker::TrackerHand XRController3D::get_tracker_hand() const {
// get our XRServer
if (!tracker.is_valid()) {
return XRPositionalTracker::TRACKER_HAND_UNKNOWN;
}
return tracker->get_tracker_hand();
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void XRAnchor3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_size"), &XRAnchor3D::get_size);
ClassDB::bind_method(D_METHOD("get_plane"), &XRAnchor3D::get_plane);
}
Vector3 XRAnchor3D::get_size() const {
return size;
}
Plane XRAnchor3D::get_plane() const {
Vector3 location = get_position();
Basis orientation = get_transform().basis;
Plane plane(orientation.get_column(1).normalized(), location);
return plane;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
Vector<XROrigin3D *> XROrigin3D::origin_nodes;
PackedStringArray XROrigin3D::get_configuration_warnings() const {
PackedStringArray warnings = Node3D::get_configuration_warnings();
if (is_visible() && is_inside_tree()) {
bool has_camera = false;
for (int i = 0; !has_camera && i < get_child_count(); i++) {
XRCamera3D *camera = Object::cast_to<XRCamera3D>(get_child(i));
if (camera) {
// found it!
has_camera = true;
}
}
if (!has_camera) {
warnings.push_back(RTR("XROrigin3D requires an XRCamera3D child node."));
}
}
bool xr_enabled = GLOBAL_GET("xr/shaders/enabled");
if (!xr_enabled) {
warnings.push_back(RTR("XR shaders are not enabled in project settings. Stereoscopic output is not supported unless they are enabled. Please enable `xr/shaders/enabled` to use stereoscopic output."));
}
return warnings;
}
void XROrigin3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_world_scale", "world_scale"), &XROrigin3D::set_world_scale);
ClassDB::bind_method(D_METHOD("get_world_scale"), &XROrigin3D::get_world_scale);
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "world_scale"), "set_world_scale", "get_world_scale");
ClassDB::bind_method(D_METHOD("set_current", "enabled"), &XROrigin3D::set_current);
ClassDB::bind_method(D_METHOD("is_current"), &XROrigin3D::is_current);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "current"), "set_current", "is_current");
}
real_t XROrigin3D::get_world_scale() const {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, 1.0);
return xr_server->get_world_scale();
}
void XROrigin3D::set_world_scale(real_t p_world_scale) {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->set_world_scale(p_world_scale);
}
void XROrigin3D::_set_current(bool p_enabled, bool p_update_others) {
// We run this logic even if current already equals p_enabled as we may have set this previously before we entered our tree.
// This is then called a second time on NOTIFICATION_ENTER_TREE where we actually process activating this origin node.
current = p_enabled;
if (!is_inside_tree() || Engine::get_singleton()->is_editor_hint()) {
return;
}
// Notify us of any transform changes
set_notify_local_transform(current);
set_notify_transform(current);
// update XRServer with our current position
if (current) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
xr_server->set_world_origin(get_global_transform());
}
// Check if we need to update our other origin nodes accordingly
if (p_update_others) {
if (current) {
for (int i = 0; i < origin_nodes.size(); i++) {
if (origin_nodes[i] != this && origin_nodes[i]->current) {
origin_nodes[i]->_set_current(false, false);
}
}
} else {
// We no longer have a current origin so find the first one we can make current
for (int i = 0; i < origin_nodes.size(); i++) {
if (origin_nodes[i] != this) {
origin_nodes[i]->_set_current(true, false);
return; // we are done.
}
}
}
}
}
void XROrigin3D::set_current(bool p_enabled) {
_set_current(p_enabled, true);
}
bool XROrigin3D::is_current() const {
if (Engine::get_singleton()->is_editor_hint()) {
// return as is
return current;
} else {
return current && is_inside_tree();
}
}
void XROrigin3D::_notification(int p_what) {
// get our XRServer
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (!Engine::get_singleton()->is_editor_hint()) {
if (origin_nodes.is_empty()) {
// first entry always becomes current
current = true;
}
origin_nodes.push_back(this);
if (current) {
// set this again so we do whatever setup is needed.
set_current(true);
}
}
} break;
case NOTIFICATION_EXIT_TREE: {
if (!Engine::get_singleton()->is_editor_hint()) {
origin_nodes.erase(this);
if (current) {
// We are no longer current
set_current(false);
}
}
} break;
case NOTIFICATION_LOCAL_TRANSFORM_CHANGED:
case NOTIFICATION_TRANSFORM_CHANGED: {
if (current && !Engine::get_singleton()->is_editor_hint()) {
xr_server->set_world_origin(get_global_transform());
}
} break;
}
if (current) {
// send our notification to all active XE interfaces, they may need to react to it also
for (int i = 0; i < xr_server->get_interface_count(); i++) {
Ref<XRInterface> interface = xr_server->get_interface(i);
if (interface.is_valid() && interface->is_initialized()) {
interface->notification(p_what);
}
}
}
}
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