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godot/scene/3d/mesh_instance.cpp
PouleyKetchoupp 5c831bc8d6 Fix mesh instance materials not initialized correctly 
This fixes a regression from PR #40313 (support for software skinning in MeshInstance).

Before, the base mesh was always updated on load even if not skinning
was used, which caused mesh instance materials to be reset on the
rendering side.

Now the base mesh is set only when it has been modified, or when
switching software skinning on or off. In this case the mesh instance
materials are always updated properly afterwards.
2020-10-16 09:33:24 +02:00

834 lines
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/*************************************************************************/
/* mesh_instance.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "mesh_instance.h"
#include "collision_shape.h"
#include "core/core_string_names.h"
#include "core/project_settings.h"
#include "physics_body.h"
#include "scene/resources/material.h"
#include "scene/scene_string_names.h"
#include "servers/visual/visual_server_globals.h"
#include "skeleton.h"
bool MeshInstance::_set(const StringName &p_name, const Variant &p_value) {
//this is not _too_ bad performance wise, really. it only arrives here if the property was not set anywhere else.
//add to it that it's probably found on first call to _set anyway.
if (!get_instance().is_valid())
return false;
Map<StringName, BlendShapeTrack>::Element *E = blend_shape_tracks.find(p_name);
if (E) {
E->get().value = p_value;
VisualServer::get_singleton()->instance_set_blend_shape_weight(get_instance(), E->get().idx, E->get().value);
return true;
}
if (p_name.operator String().begins_with("material/")) {
int idx = p_name.operator String().get_slicec('/', 1).to_int();
if (idx >= materials.size() || idx < 0)
return false;
set_surface_material(idx, p_value);
return true;
}
return false;
}
bool MeshInstance::_get(const StringName &p_name, Variant &r_ret) const {
if (!get_instance().is_valid())
return false;
const Map<StringName, BlendShapeTrack>::Element *E = blend_shape_tracks.find(p_name);
if (E) {
r_ret = E->get().value;
return true;
}
if (p_name.operator String().begins_with("material/")) {
int idx = p_name.operator String().get_slicec('/', 1).to_int();
if (idx >= materials.size() || idx < 0)
return false;
r_ret = materials[idx];
return true;
}
return false;
}
void MeshInstance::_get_property_list(List<PropertyInfo> *p_list) const {
List<String> ls;
for (const Map<StringName, BlendShapeTrack>::Element *E = blend_shape_tracks.front(); E; E = E->next()) {
ls.push_back(E->key());
}
ls.sort();
for (List<String>::Element *E = ls.front(); E; E = E->next()) {
p_list->push_back(PropertyInfo(Variant::REAL, E->get(), PROPERTY_HINT_RANGE, "0,1,0.00001"));
}
if (mesh.is_valid()) {
for (int i = 0; i < mesh->get_surface_count(); i++) {
p_list->push_back(PropertyInfo(Variant::OBJECT, "material/" + itos(i), PROPERTY_HINT_RESOURCE_TYPE, "ShaderMaterial,SpatialMaterial"));
}
}
}
void MeshInstance::set_mesh(const Ref<Mesh> &p_mesh) {
if (mesh == p_mesh)
return;
if (mesh.is_valid()) {
mesh->disconnect(CoreStringNames::get_singleton()->changed, this, SceneStringNames::get_singleton()->_mesh_changed);
materials.clear();
}
if (skin_ref.is_valid() && mesh.is_valid() && _is_software_skinning_enabled() && is_visible_in_tree()) {
ERR_FAIL_COND(!skin_ref->get_skeleton_node());
skin_ref->get_skeleton_node()->disconnect("skeleton_updated", this, "_update_skinning");
}
if (software_skinning) {
memdelete(software_skinning);
software_skinning = nullptr;
}
mesh = p_mesh;
blend_shape_tracks.clear();
if (mesh.is_valid()) {
for (int i = 0; i < mesh->get_blend_shape_count(); i++) {
BlendShapeTrack mt;
mt.idx = i;
mt.value = 0;
blend_shape_tracks["blend_shapes/" + String(mesh->get_blend_shape_name(i))] = mt;
}
mesh->connect(CoreStringNames::get_singleton()->changed, this, SceneStringNames::get_singleton()->_mesh_changed);
materials.resize(mesh->get_surface_count());
_initialize_skinning();
} else {
set_base(RID());
}
update_gizmo();
_change_notify();
}
Ref<Mesh> MeshInstance::get_mesh() const {
return mesh;
}
void MeshInstance::_resolve_skeleton_path() {
Ref<SkinReference> new_skin_reference;
if (!skeleton_path.is_empty()) {
Skeleton *skeleton = Object::cast_to<Skeleton>(get_node(skeleton_path));
if (skeleton) {
new_skin_reference = skeleton->register_skin(skin_internal);
if (skin_internal.is_null()) {
//a skin was created for us
skin_internal = new_skin_reference->get_skin();
_change_notify();
}
}
}
if (skin_ref.is_valid() && mesh.is_valid() && _is_software_skinning_enabled() && is_visible_in_tree()) {
ERR_FAIL_COND(!skin_ref->get_skeleton_node());
skin_ref->get_skeleton_node()->disconnect("skeleton_updated", this, "_update_skinning");
}
skin_ref = new_skin_reference;
software_skinning_flags &= ~SoftwareSkinning::FLAG_BONES_READY;
_initialize_skinning();
}
bool MeshInstance::_is_global_software_skinning_enabled() {
// Check if forced in project settings.
if (GLOBAL_GET("rendering/quality/skinning/force_software_skinning")) {
return true;
}
// Check if enabled in project settings.
if (!GLOBAL_GET("rendering/quality/skinning/software_skinning_fallback")) {
return false;
}
// Check if requested by renderer settings.
return VSG::storage->has_os_feature("skinning_fallback");
}
bool MeshInstance::_is_software_skinning_enabled() const {
// Using static local variable which will be initialized only once,
// so _is_global_software_skinning_enabled can be only called once on first use.
static bool global_software_skinning = _is_global_software_skinning_enabled();
return global_software_skinning;
}
void MeshInstance::_initialize_skinning(bool p_force_reset) {
if (mesh.is_null()) {
return;
}
VisualServer *visual_server = VisualServer::get_singleton();
bool update_mesh = false;
if (skin_ref.is_valid()) {
if (_is_software_skinning_enabled()) {
if (is_visible_in_tree()) {
ERR_FAIL_COND(!skin_ref->get_skeleton_node());
if (!skin_ref->get_skeleton_node()->is_connected("skeleton_updated", this, "_update_skinning")) {
skin_ref->get_skeleton_node()->connect("skeleton_updated", this, "_update_skinning");
}
}
if (p_force_reset && software_skinning) {
memdelete(software_skinning);
software_skinning = nullptr;
}
if (!software_skinning) {
software_skinning = memnew(SoftwareSkinning);
if (mesh->get_blend_shape_count() > 0) {
ERR_PRINT("Blend shapes are not supported for software skinning.");
}
Ref<ArrayMesh> software_mesh;
software_mesh.instance();
RID mesh_rid = software_mesh->get_rid();
// Initialize mesh for dynamic update.
int surface_count = mesh->get_surface_count();
software_skinning->surface_data.resize(surface_count);
for (int surface_index = 0; surface_index < surface_count; ++surface_index) {
ERR_CONTINUE(Mesh::PRIMITIVE_TRIANGLES != mesh->surface_get_primitive_type(surface_index));
SoftwareSkinning::SurfaceData &surface_data = software_skinning->surface_data[surface_index];
surface_data.transform_tangents = false;
surface_data.ensure_correct_normals = false;
uint32_t format = mesh->surface_get_format(surface_index);
ERR_CONTINUE(0 == (format & Mesh::ARRAY_FORMAT_VERTEX));
ERR_CONTINUE(0 == (format & Mesh::ARRAY_FORMAT_BONES));
ERR_CONTINUE(0 == (format & Mesh::ARRAY_FORMAT_WEIGHTS));
format |= Mesh::ARRAY_FLAG_USE_DYNAMIC_UPDATE;
format &= ~Mesh::ARRAY_COMPRESS_VERTEX;
format &= ~Mesh::ARRAY_COMPRESS_WEIGHTS;
format &= ~Mesh::ARRAY_FLAG_USE_16_BIT_BONES;
Array write_arrays = mesh->surface_get_arrays(surface_index);
Array read_arrays;
read_arrays.resize(Mesh::ARRAY_MAX);
read_arrays[Mesh::ARRAY_VERTEX] = write_arrays[Mesh::ARRAY_VERTEX];
read_arrays[Mesh::ARRAY_BONES] = write_arrays[Mesh::ARRAY_BONES];
read_arrays[Mesh::ARRAY_WEIGHTS] = write_arrays[Mesh::ARRAY_WEIGHTS];
write_arrays[Mesh::ARRAY_BONES] = Variant();
write_arrays[Mesh::ARRAY_WEIGHTS] = Variant();
if (software_skinning_flags & SoftwareSkinning::FLAG_TRANSFORM_NORMALS) {
ERR_CONTINUE(0 == (format & Mesh::ARRAY_FORMAT_NORMAL));
format &= ~Mesh::ARRAY_COMPRESS_NORMAL;
read_arrays[Mesh::ARRAY_NORMAL] = write_arrays[Mesh::ARRAY_NORMAL];
Ref<Material> mat = get_active_material(surface_index);
if (mat.is_valid()) {
Ref<SpatialMaterial> spatial_mat = mat;
if (spatial_mat.is_valid()) {
// Spatial material, check from material settings.
surface_data.transform_tangents = spatial_mat->get_feature(SpatialMaterial::FEATURE_NORMAL_MAPPING);
surface_data.ensure_correct_normals = spatial_mat->get_flag(SpatialMaterial::FLAG_ENSURE_CORRECT_NORMALS);
} else {
// Custom shader, must check for compiled flags.
surface_data.transform_tangents = VSG::storage->material_uses_tangents(mat->get_rid());
surface_data.ensure_correct_normals = VSG::storage->material_uses_ensure_correct_normals(mat->get_rid());
}
}
if (surface_data.transform_tangents) {
ERR_CONTINUE(0 == (format & Mesh::ARRAY_FORMAT_TANGENT));
format &= ~Mesh::ARRAY_COMPRESS_TANGENT;
read_arrays[Mesh::ARRAY_TANGENT] = write_arrays[Mesh::ARRAY_TANGENT];
}
}
// 1. Temporarily add surface with bone data to create the read buffer.
software_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, read_arrays, Array(), format);
PoolByteArray buffer_read = visual_server->mesh_surface_get_array(mesh_rid, surface_index);
surface_data.source_buffer.append_array(buffer_read);
surface_data.source_format = software_mesh->surface_get_format(surface_index);
software_mesh->surface_remove(surface_index);
// 2. Create the surface again without the bone data for the write buffer.
software_mesh->add_surface_from_arrays(Mesh::PRIMITIVE_TRIANGLES, write_arrays, Array(), format);
Ref<Material> material = mesh->surface_get_material(surface_index);
software_mesh->surface_set_material(surface_index, material);
surface_data.buffer = visual_server->mesh_surface_get_array(mesh_rid, surface_index);
surface_data.buffer_write = surface_data.buffer.write();
}
software_skinning->mesh_instance = software_mesh;
update_mesh = true;
}
visual_server->instance_attach_skeleton(get_instance(), RID());
if (is_visible_in_tree() && (software_skinning_flags & SoftwareSkinning::FLAG_BONES_READY)) {
// Intialize from current skeleton pose.
_update_skinning();
}
} else {
ERR_FAIL_COND(!skin_ref->get_skeleton_node());
if (skin_ref->get_skeleton_node()->is_connected("skeleton_updated", this, "_update_skinning")) {
skin_ref->get_skeleton_node()->disconnect("skeleton_updated", this, "_update_skinning");
}
visual_server->instance_attach_skeleton(get_instance(), skin_ref->get_skeleton());
if (software_skinning) {
memdelete(software_skinning);
software_skinning = nullptr;
update_mesh = true;
}
}
} else {
visual_server->instance_attach_skeleton(get_instance(), RID());
if (software_skinning) {
memdelete(software_skinning);
software_skinning = nullptr;
update_mesh = true;
}
}
RID render_mesh = software_skinning ? software_skinning->mesh_instance->get_rid() : mesh->get_rid();
if (update_mesh || (render_mesh != get_base())) {
set_base(render_mesh);
// Update instance materials after switching mesh.
int surface_count = mesh->get_surface_count();
for (int surface_index = 0; surface_index < surface_count; ++surface_index) {
if (materials[surface_index].is_valid()) {
visual_server->instance_set_surface_material(get_instance(), surface_index, materials[surface_index]->get_rid());
}
}
}
}
void MeshInstance::_update_skinning() {
ERR_FAIL_COND(!_is_software_skinning_enabled());
#if defined(TOOLS_ENABLED) && defined(DEBUG_ENABLED)
ERR_FAIL_COND(!is_visible_in_tree());
#else
ERR_FAIL_COND(!is_visible());
#endif
ERR_FAIL_COND(!software_skinning);
Ref<Mesh> software_skinning_mesh = software_skinning->mesh_instance;
ERR_FAIL_COND(!software_skinning_mesh.is_valid());
RID mesh_rid = software_skinning_mesh->get_rid();
ERR_FAIL_COND(!mesh_rid.is_valid());
ERR_FAIL_COND(!mesh.is_valid());
RID source_mesh_rid = mesh->get_rid();
ERR_FAIL_COND(!source_mesh_rid.is_valid());
ERR_FAIL_COND(skin_ref.is_null());
RID skeleton = skin_ref->get_skeleton();
ERR_FAIL_COND(!skeleton.is_valid());
VisualServer *visual_server = VisualServer::get_singleton();
// Prepare bone transforms.
const int num_bones = visual_server->skeleton_get_bone_count(skeleton);
ERR_FAIL_COND(num_bones <= 0);
Transform *bone_transforms = (Transform *)alloca(sizeof(Transform) * num_bones);
for (int bone_index = 0; bone_index < num_bones; ++bone_index) {
bone_transforms[bone_index] = visual_server->skeleton_bone_get_transform(skeleton, bone_index);
}
// Apply skinning.
int surface_count = software_skinning_mesh->get_surface_count();
for (int surface_index = 0; surface_index < surface_count; ++surface_index) {
ERR_CONTINUE((uint32_t)surface_index >= software_skinning->surface_data.size());
const SoftwareSkinning::SurfaceData &surface_data = software_skinning->surface_data[surface_index];
const bool transform_tangents = surface_data.transform_tangents;
const bool ensure_correct_normals = surface_data.ensure_correct_normals;
const uint32_t format_write = software_skinning_mesh->surface_get_format(surface_index);
const int vertex_count_write = software_skinning_mesh->surface_get_array_len(surface_index);
const int index_count_write = software_skinning_mesh->surface_get_array_index_len(surface_index);
uint32_t array_offsets_write[Mesh::ARRAY_MAX];
const uint32_t stride_write = visual_server->mesh_surface_make_offsets_from_format(format_write, vertex_count_write, index_count_write, array_offsets_write);
const uint32_t offset_vertices_write = array_offsets_write[Mesh::ARRAY_VERTEX];
const uint32_t offset_normals_write = array_offsets_write[Mesh::ARRAY_NORMAL];
const uint32_t offset_tangents_write = array_offsets_write[Mesh::ARRAY_TANGENT];
PoolByteArray buffer_source = surface_data.source_buffer;
PoolByteArray::Read buffer_read = buffer_source.read();
const uint32_t format_read = surface_data.source_format;
ERR_CONTINUE(0 == (format_read & Mesh::ARRAY_FORMAT_BONES));
ERR_CONTINUE(0 == (format_read & Mesh::ARRAY_FORMAT_WEIGHTS));
const int vertex_count = mesh->surface_get_array_len(surface_index);
const int index_count = mesh->surface_get_array_index_len(surface_index);
ERR_CONTINUE(vertex_count != vertex_count_write);
uint32_t array_offsets[Mesh::ARRAY_MAX];
const uint32_t stride = visual_server->mesh_surface_make_offsets_from_format(format_read, vertex_count, index_count, array_offsets);
const uint32_t offset_vertices = array_offsets[Mesh::ARRAY_VERTEX];
const uint32_t offset_normals = array_offsets[Mesh::ARRAY_NORMAL];
const uint32_t offset_tangents = array_offsets[Mesh::ARRAY_TANGENT];
const uint32_t offset_bones = array_offsets[Mesh::ARRAY_BONES];
const uint32_t offset_weights = array_offsets[Mesh::ARRAY_WEIGHTS];
PoolByteArray buffer = surface_data.buffer;
PoolByteArray::Write buffer_write = surface_data.buffer_write;
for (int vertex_index = 0; vertex_index < vertex_count; ++vertex_index) {
const uint32_t vertex_offset = vertex_index * stride;
const uint32_t vertex_offset_write = vertex_index * stride_write;
float bone_weights[4];
const float *weight_ptr = (const float *)(buffer_read.ptr() + offset_weights + vertex_offset);
bone_weights[0] = weight_ptr[0];
bone_weights[1] = weight_ptr[1];
bone_weights[2] = weight_ptr[2];
bone_weights[3] = weight_ptr[3];
const uint8_t *bones_ptr = buffer_read.ptr() + offset_bones + vertex_offset;
const int b0 = bones_ptr[0];
const int b1 = bones_ptr[1];
const int b2 = bones_ptr[2];
const int b3 = bones_ptr[3];
Transform transform;
transform.origin =
bone_weights[0] * bone_transforms[b0].origin +
bone_weights[1] * bone_transforms[b1].origin +
bone_weights[2] * bone_transforms[b2].origin +
bone_weights[3] * bone_transforms[b3].origin;
transform.basis =
bone_transforms[b0].basis * bone_weights[0] +
bone_transforms[b1].basis * bone_weights[1] +
bone_transforms[b2].basis * bone_weights[2] +
bone_transforms[b3].basis * bone_weights[3];
const Vector3 &vertex_read = (const Vector3 &)buffer_read[vertex_offset + offset_vertices];
Vector3 &vertex = (Vector3 &)buffer_write[vertex_offset_write + offset_vertices_write];
vertex = transform.xform(vertex_read);
if (software_skinning_flags & SoftwareSkinning::FLAG_TRANSFORM_NORMALS) {
if (ensure_correct_normals) {
transform.basis.invert();
transform.basis.transpose();
}
const Vector3 &normal_read = (const Vector3 &)buffer_read[vertex_offset + offset_normals];
Vector3 &normal = (Vector3 &)buffer_write[vertex_offset_write + offset_normals_write];
normal = transform.basis.xform(normal_read);
if (transform_tangents) {
const Vector3 &tangent_read = (const Vector3 &)buffer_read[vertex_offset + offset_tangents];
Vector3 &tangent = (Vector3 &)buffer_write[vertex_offset_write + offset_tangents_write];
tangent = transform.basis.xform(tangent_read);
}
}
}
visual_server->mesh_surface_update_region(mesh_rid, surface_index, 0, buffer);
}
software_skinning_flags |= SoftwareSkinning::FLAG_BONES_READY;
}
void MeshInstance::set_skin(const Ref<Skin> &p_skin) {
skin_internal = p_skin;
skin = p_skin;
if (!is_inside_tree())
return;
_resolve_skeleton_path();
}
Ref<Skin> MeshInstance::get_skin() const {
return skin;
}
void MeshInstance::set_skeleton_path(const NodePath &p_skeleton) {
skeleton_path = p_skeleton;
if (!is_inside_tree())
return;
_resolve_skeleton_path();
}
NodePath MeshInstance::get_skeleton_path() {
return skeleton_path;
}
AABB MeshInstance::get_aabb() const {
if (!mesh.is_null())
return mesh->get_aabb();
return AABB();
}
PoolVector<Face3> MeshInstance::get_faces(uint32_t p_usage_flags) const {
if (!(p_usage_flags & (FACES_SOLID | FACES_ENCLOSING)))
return PoolVector<Face3>();
if (mesh.is_null())
return PoolVector<Face3>();
return mesh->get_faces();
}
Node *MeshInstance::create_trimesh_collision_node() {
if (mesh.is_null())
return NULL;
Ref<Shape> shape = mesh->create_trimesh_shape();
if (shape.is_null())
return NULL;
StaticBody *static_body = memnew(StaticBody);
CollisionShape *cshape = memnew(CollisionShape);
cshape->set_shape(shape);
static_body->add_child(cshape);
return static_body;
}
void MeshInstance::create_trimesh_collision() {
StaticBody *static_body = Object::cast_to<StaticBody>(create_trimesh_collision_node());
ERR_FAIL_COND(!static_body);
static_body->set_name(String(get_name()) + "_col");
add_child(static_body);
if (get_owner()) {
CollisionShape *cshape = Object::cast_to<CollisionShape>(static_body->get_child(0));
static_body->set_owner(get_owner());
cshape->set_owner(get_owner());
}
}
Node *MeshInstance::create_convex_collision_node() {
if (mesh.is_null())
return NULL;
Ref<Shape> shape = mesh->create_convex_shape();
if (shape.is_null())
return NULL;
StaticBody *static_body = memnew(StaticBody);
CollisionShape *cshape = memnew(CollisionShape);
cshape->set_shape(shape);
static_body->add_child(cshape);
return static_body;
}
void MeshInstance::create_convex_collision() {
StaticBody *static_body = Object::cast_to<StaticBody>(create_convex_collision_node());
ERR_FAIL_COND(!static_body);
static_body->set_name(String(get_name()) + "_col");
add_child(static_body);
if (get_owner()) {
CollisionShape *cshape = Object::cast_to<CollisionShape>(static_body->get_child(0));
static_body->set_owner(get_owner());
cshape->set_owner(get_owner());
}
}
void MeshInstance::_notification(int p_what) {
if (p_what == NOTIFICATION_ENTER_TREE) {
_resolve_skeleton_path();
}
if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
if (skin_ref.is_valid() && mesh.is_valid() && _is_software_skinning_enabled()) {
ERR_FAIL_COND(!skin_ref->get_skeleton_node());
if (is_visible_in_tree()) {
skin_ref->get_skeleton_node()->connect("skeleton_updated", this, "_update_skinning");
} else {
skin_ref->get_skeleton_node()->disconnect("skeleton_updated", this, "_update_skinning");
}
}
}
}
int MeshInstance::get_surface_material_count() const {
return materials.size();
}
void MeshInstance::set_surface_material(int p_surface, const Ref<Material> &p_material) {
ERR_FAIL_INDEX(p_surface, materials.size());
materials.write[p_surface] = p_material;
if (materials[p_surface].is_valid())
VS::get_singleton()->instance_set_surface_material(get_instance(), p_surface, materials[p_surface]->get_rid());
else
VS::get_singleton()->instance_set_surface_material(get_instance(), p_surface, RID());
if (software_skinning) {
_initialize_skinning(true);
}
}
Ref<Material> MeshInstance::get_surface_material(int p_surface) const {
ERR_FAIL_INDEX_V(p_surface, materials.size(), Ref<Material>());
return materials[p_surface];
}
Ref<Material> MeshInstance::get_active_material(int p_surface) const {
Ref<Material> material_override = get_material_override();
if (material_override.is_valid()) {
return material_override;
}
Ref<Material> surface_material = get_surface_material(p_surface);
if (surface_material.is_valid()) {
return surface_material;
}
Ref<Mesh> mesh = get_mesh();
if (mesh.is_valid()) {
return mesh->surface_get_material(p_surface);
}
return Ref<Material>();
}
void MeshInstance::set_material_override(const Ref<Material> &p_material) {
if (p_material == get_material_override()) {
return;
}
GeometryInstance::set_material_override(p_material);
if (software_skinning) {
_initialize_skinning(true);
}
}
void MeshInstance::set_software_skinning_transform_normals(bool p_enabled) {
if (p_enabled == is_software_skinning_transform_normals_enabled()) {
return;
}
if (p_enabled) {
software_skinning_flags |= SoftwareSkinning::FLAG_TRANSFORM_NORMALS;
} else {
software_skinning_flags &= ~SoftwareSkinning::FLAG_TRANSFORM_NORMALS;
}
if (software_skinning) {
_initialize_skinning(true);
}
}
bool MeshInstance::is_software_skinning_transform_normals_enabled() const {
return 0 != (software_skinning_flags & SoftwareSkinning::FLAG_TRANSFORM_NORMALS);
}
void MeshInstance::_mesh_changed() {
materials.resize(mesh->get_surface_count());
if (software_skinning) {
_initialize_skinning(true);
}
}
void MeshInstance::create_debug_tangents() {
Vector<Vector3> lines;
Vector<Color> colors;
Ref<Mesh> mesh = get_mesh();
if (!mesh.is_valid())
return;
for (int i = 0; i < mesh->get_surface_count(); i++) {
Array arrays = mesh->surface_get_arrays(i);
Vector<Vector3> verts = arrays[Mesh::ARRAY_VERTEX];
Vector<Vector3> norms = arrays[Mesh::ARRAY_NORMAL];
if (norms.size() == 0)
continue;
Vector<float> tangents = arrays[Mesh::ARRAY_TANGENT];
if (tangents.size() == 0)
continue;
for (int j = 0; j < verts.size(); j++) {
Vector3 v = verts[j];
Vector3 n = norms[j];
Vector3 t = Vector3(tangents[j * 4 + 0], tangents[j * 4 + 1], tangents[j * 4 + 2]);
Vector3 b = (n.cross(t)).normalized() * tangents[j * 4 + 3];
lines.push_back(v); //normal
colors.push_back(Color(0, 0, 1)); //color
lines.push_back(v + n * 0.04); //normal
colors.push_back(Color(0, 0, 1)); //color
lines.push_back(v); //tangent
colors.push_back(Color(1, 0, 0)); //color
lines.push_back(v + t * 0.04); //tangent
colors.push_back(Color(1, 0, 0)); //color
lines.push_back(v); //binormal
colors.push_back(Color(0, 1, 0)); //color
lines.push_back(v + b * 0.04); //binormal
colors.push_back(Color(0, 1, 0)); //color
}
}
if (lines.size()) {
Ref<SpatialMaterial> sm;
sm.instance();
sm->set_flag(SpatialMaterial::FLAG_UNSHADED, true);
sm->set_flag(SpatialMaterial::FLAG_SRGB_VERTEX_COLOR, true);
sm->set_flag(SpatialMaterial::FLAG_ALBEDO_FROM_VERTEX_COLOR, true);
Ref<ArrayMesh> am;
am.instance();
Array a;
a.resize(Mesh::ARRAY_MAX);
a[Mesh::ARRAY_VERTEX] = lines;
a[Mesh::ARRAY_COLOR] = colors;
am->add_surface_from_arrays(Mesh::PRIMITIVE_LINES, a);
am->surface_set_material(0, sm);
MeshInstance *mi = memnew(MeshInstance);
mi->set_mesh(am);
mi->set_name("DebugTangents");
add_child(mi);
#ifdef TOOLS_ENABLED
if (this == get_tree()->get_edited_scene_root())
mi->set_owner(this);
else
mi->set_owner(get_owner());
#endif
}
}
void MeshInstance::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &MeshInstance::set_mesh);
ClassDB::bind_method(D_METHOD("get_mesh"), &MeshInstance::get_mesh);
ClassDB::bind_method(D_METHOD("set_skeleton_path", "skeleton_path"), &MeshInstance::set_skeleton_path);
ClassDB::bind_method(D_METHOD("get_skeleton_path"), &MeshInstance::get_skeleton_path);
ClassDB::bind_method(D_METHOD("set_skin", "skin"), &MeshInstance::set_skin);
ClassDB::bind_method(D_METHOD("get_skin"), &MeshInstance::get_skin);
ClassDB::bind_method(D_METHOD("get_surface_material_count"), &MeshInstance::get_surface_material_count);
ClassDB::bind_method(D_METHOD("set_surface_material", "surface", "material"), &MeshInstance::set_surface_material);
ClassDB::bind_method(D_METHOD("get_surface_material", "surface"), &MeshInstance::get_surface_material);
ClassDB::bind_method(D_METHOD("get_active_material", "surface"), &MeshInstance::get_active_material);
ClassDB::bind_method(D_METHOD("set_software_skinning_transform_normals", "enabled"), &MeshInstance::set_software_skinning_transform_normals);
ClassDB::bind_method(D_METHOD("is_software_skinning_transform_normals_enabled"), &MeshInstance::is_software_skinning_transform_normals_enabled);
ClassDB::bind_method(D_METHOD("create_trimesh_collision"), &MeshInstance::create_trimesh_collision);
ClassDB::set_method_flags("MeshInstance", "create_trimesh_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("create_convex_collision"), &MeshInstance::create_convex_collision);
ClassDB::set_method_flags("MeshInstance", "create_convex_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("_mesh_changed"), &MeshInstance::_mesh_changed);
ClassDB::bind_method(D_METHOD("_update_skinning"), &MeshInstance::_update_skinning);
ClassDB::bind_method(D_METHOD("create_debug_tangents"), &MeshInstance::create_debug_tangents);
ClassDB::set_method_flags("MeshInstance", "create_debug_tangents", METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR);
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "skin", PROPERTY_HINT_RESOURCE_TYPE, "Skin"), "set_skin", "get_skin");
ADD_PROPERTY(PropertyInfo(Variant::NODE_PATH, "skeleton", PROPERTY_HINT_NODE_PATH_VALID_TYPES, "Skeleton"), "set_skeleton_path", "get_skeleton_path");
ADD_GROUP("Software Skinning", "software_skinning");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "software_skinning_transform_normals"), "set_software_skinning_transform_normals", "is_software_skinning_transform_normals_enabled");
}
MeshInstance::MeshInstance() {
skeleton_path = NodePath("..");
software_skinning = nullptr;
software_skinning_flags = SoftwareSkinning::FLAG_TRANSFORM_NORMALS;
}
MeshInstance::~MeshInstance() {
if (software_skinning) {
memdelete(software_skinning);
software_skinning = nullptr;
}
}
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