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mesh_storage.cpp
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mesh_storage.cpp
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/**************************************************************************/
/* mesh_storage.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. */
/**************************************************************************/
#ifdef GLES3_ENABLED
#include "mesh_storage.h"
#include "config.h"
#include "material_storage.h"
#include "texture_storage.h"
#include "utilities.h"
using namespace GLES3;
MeshStorage *MeshStorage::singleton = nullptr;
MeshStorage *MeshStorage::get_singleton() {
return singleton;
}
MeshStorage::MeshStorage() {
singleton = this;
{
skeleton_shader.shader.initialize();
skeleton_shader.shader_version = skeleton_shader.shader.version_create();
}
}
MeshStorage::~MeshStorage() {
singleton = nullptr;
skeleton_shader.shader.version_free(skeleton_shader.shader_version);
}
/* MESH API */
RID MeshStorage::mesh_allocate() {
return mesh_owner.allocate_rid();
}
void MeshStorage::mesh_initialize(RID p_rid) {
mesh_owner.initialize_rid(p_rid, Mesh());
}
void MeshStorage::mesh_free(RID p_rid) {
mesh_clear(p_rid);
mesh_set_shadow_mesh(p_rid, RID());
Mesh *mesh = mesh_owner.get_or_null(p_rid);
ERR_FAIL_NULL(mesh);
mesh->dependency.deleted_notify(p_rid);
if (mesh->instances.size()) {
ERR_PRINT("deleting mesh with active instances");
}
if (mesh->shadow_owners.size()) {
for (Mesh *E : mesh->shadow_owners) {
Mesh *shadow_owner = E;
shadow_owner->shadow_mesh = RID();
shadow_owner->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
}
}
mesh_owner.free(p_rid);
}
void MeshStorage::mesh_set_blend_shape_count(RID p_mesh, int p_blend_shape_count) {
ERR_FAIL_COND(p_blend_shape_count < 0);
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_COND(mesh->surface_count > 0); //surfaces already exist
mesh->blend_shape_count = p_blend_shape_count;
}
bool MeshStorage::mesh_needs_instance(RID p_mesh, bool p_has_skeleton) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, false);
return mesh->blend_shape_count > 0 || (mesh->has_bone_weights && p_has_skeleton);
}
void MeshStorage::mesh_add_surface(RID p_mesh, const RS::SurfaceData &p_surface) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_COND(mesh->surface_count == RS::MAX_MESH_SURFACES);
#ifdef DEBUG_ENABLED
//do a validation, to catch errors first
{
uint32_t stride = 0;
uint32_t attrib_stride = 0;
uint32_t skin_stride = 0;
for (int i = 0; i < RS::ARRAY_WEIGHTS; i++) {
if ((p_surface.format & (1ULL << i))) {
switch (i) {
case RS::ARRAY_VERTEX: {
if ((p_surface.format & RS::ARRAY_FLAG_USE_2D_VERTICES) || (p_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) {
stride += sizeof(float) * 2;
} else {
stride += sizeof(float) * 3;
}
} break;
case RS::ARRAY_NORMAL: {
stride += sizeof(uint16_t) * 2;
} break;
case RS::ARRAY_TANGENT: {
if (!(p_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) {
stride += sizeof(uint16_t) * 2;
}
} break;
case RS::ARRAY_COLOR: {
attrib_stride += sizeof(uint32_t);
} break;
case RS::ARRAY_TEX_UV: {
if (p_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
attrib_stride += sizeof(uint16_t) * 2;
} else {
attrib_stride += sizeof(float) * 2;
}
} break;
case RS::ARRAY_TEX_UV2: {
if (p_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
attrib_stride += sizeof(uint16_t) * 2;
} else {
attrib_stride += sizeof(float) * 2;
}
} break;
case RS::ARRAY_CUSTOM0:
case RS::ARRAY_CUSTOM1:
case RS::ARRAY_CUSTOM2:
case RS::ARRAY_CUSTOM3: {
int idx = i - RS::ARRAY_CUSTOM0;
uint32_t fmt_shift[RS::ARRAY_CUSTOM_COUNT] = { RS::ARRAY_FORMAT_CUSTOM0_SHIFT, RS::ARRAY_FORMAT_CUSTOM1_SHIFT, RS::ARRAY_FORMAT_CUSTOM2_SHIFT, RS::ARRAY_FORMAT_CUSTOM3_SHIFT };
uint32_t fmt = (p_surface.format >> fmt_shift[idx]) & RS::ARRAY_FORMAT_CUSTOM_MASK;
uint32_t fmtsize[RS::ARRAY_CUSTOM_MAX] = { 4, 4, 4, 8, 4, 8, 12, 16 };
attrib_stride += fmtsize[fmt];
} break;
case RS::ARRAY_WEIGHTS:
case RS::ARRAY_BONES: {
//uses a separate array
bool use_8 = p_surface.format & RS::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
skin_stride += sizeof(int16_t) * (use_8 ? 16 : 8);
} break;
}
}
}
int expected_size = stride * p_surface.vertex_count;
ERR_FAIL_COND_MSG(expected_size != p_surface.vertex_data.size(), "Size of vertex data provided (" + itos(p_surface.vertex_data.size()) + ") does not match expected (" + itos(expected_size) + ")");
int bs_expected_size = expected_size * mesh->blend_shape_count;
ERR_FAIL_COND_MSG(bs_expected_size != p_surface.blend_shape_data.size(), "Size of blend shape data provided (" + itos(p_surface.blend_shape_data.size()) + ") does not match expected (" + itos(bs_expected_size) + ")");
int expected_attrib_size = attrib_stride * p_surface.vertex_count;
ERR_FAIL_COND_MSG(expected_attrib_size != p_surface.attribute_data.size(), "Size of attribute data provided (" + itos(p_surface.attribute_data.size()) + ") does not match expected (" + itos(expected_attrib_size) + ")");
if ((p_surface.format & RS::ARRAY_FORMAT_WEIGHTS) && (p_surface.format & RS::ARRAY_FORMAT_BONES)) {
expected_size = skin_stride * p_surface.vertex_count;
ERR_FAIL_COND_MSG(expected_size != p_surface.skin_data.size(), "Size of skin data provided (" + itos(p_surface.skin_data.size()) + ") does not match expected (" + itos(expected_size) + ")");
}
}
#endif
uint64_t surface_version = p_surface.format & (uint64_t(RS::ARRAY_FLAG_FORMAT_VERSION_MASK) << RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT);
RS::SurfaceData new_surface = p_surface;
#ifdef DISABLE_DEPRECATED
ERR_FAIL_COND_MSG(surface_version != RS::ARRAY_FLAG_FORMAT_CURRENT_VERSION, "Surface version provided (" + itos(int(surface_version >> RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT)) + ") does not match current version (" + itos(RS::ARRAY_FLAG_FORMAT_CURRENT_VERSION >> RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT) + ")");
#else
if (surface_version != uint64_t(RS::ARRAY_FLAG_FORMAT_CURRENT_VERSION)) {
RS::get_singleton()->fix_surface_compatibility(new_surface);
surface_version = new_surface.format & (uint64_t(RS::ARRAY_FLAG_FORMAT_VERSION_MASK) << RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT);
ERR_FAIL_COND_MSG(surface_version != RS::ARRAY_FLAG_FORMAT_CURRENT_VERSION,
vformat("Surface version provided (%d) does not match current version (%d).",
(surface_version >> RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT) & RS::ARRAY_FLAG_FORMAT_VERSION_MASK,
(RS::ARRAY_FLAG_FORMAT_CURRENT_VERSION >> RS::ARRAY_FLAG_FORMAT_VERSION_SHIFT) & RS::ARRAY_FLAG_FORMAT_VERSION_MASK));
}
#endif
Mesh::Surface *s = memnew(Mesh::Surface);
s->format = new_surface.format;
s->primitive = new_surface.primitive;
if (new_surface.vertex_data.size()) {
glGenBuffers(1, &s->vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, s->vertex_buffer);
// If we have an uncompressed surface that contains normals, but not tangents, we need to differentiate the array
// from a compressed array in the shader. To do so, we allow the normal to read 4 components out of the buffer
// But only give it 2 components per normal. So essentially, each vertex reads the next normal in normal.zw.
// This allows us to avoid adding a shader permutation, and avoid passing dummy tangents. Since the stride is kept small
// this should still be a net win for bandwidth.
// If we do this, then the last normal will read past the end of the array. So we need to pad the array with dummy data.
if (!(new_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) && (new_surface.format & RS::ARRAY_FORMAT_NORMAL) && !(new_surface.format & RS::ARRAY_FORMAT_TANGENT)) {
// Unfortunately, we need to copy the buffer, which is fine as doing a resize triggers a CoW anyway.
Vector<uint8_t> new_vertex_data;
new_vertex_data.resize_zeroed(new_surface.vertex_data.size() + sizeof(uint16_t) * 2);
memcpy(new_vertex_data.ptrw(), new_surface.vertex_data.ptr(), new_surface.vertex_data.size());
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, s->vertex_buffer, new_vertex_data.size(), new_vertex_data.ptr(), (s->format & RS::ARRAY_FLAG_USE_DYNAMIC_UPDATE) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, "Mesh vertex buffer");
s->vertex_buffer_size = new_vertex_data.size();
} else {
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, s->vertex_buffer, new_surface.vertex_data.size(), new_surface.vertex_data.ptr(), (s->format & RS::ARRAY_FLAG_USE_DYNAMIC_UPDATE) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, "Mesh vertex buffer");
s->vertex_buffer_size = new_surface.vertex_data.size();
}
}
if (new_surface.attribute_data.size()) {
glGenBuffers(1, &s->attribute_buffer);
glBindBuffer(GL_ARRAY_BUFFER, s->attribute_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, s->attribute_buffer, new_surface.attribute_data.size(), new_surface.attribute_data.ptr(), (s->format & RS::ARRAY_FLAG_USE_DYNAMIC_UPDATE) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, "Mesh attribute buffer");
s->attribute_buffer_size = new_surface.attribute_data.size();
}
if (new_surface.skin_data.size()) {
glGenBuffers(1, &s->skin_buffer);
glBindBuffer(GL_ARRAY_BUFFER, s->skin_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, s->skin_buffer, new_surface.skin_data.size(), new_surface.skin_data.ptr(), (s->format & RS::ARRAY_FLAG_USE_DYNAMIC_UPDATE) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, "Mesh skin buffer");
s->skin_buffer_size = new_surface.skin_data.size();
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
s->vertex_count = new_surface.vertex_count;
if (new_surface.format & RS::ARRAY_FORMAT_BONES) {
mesh->has_bone_weights = true;
}
if (new_surface.index_count) {
bool is_index_16 = new_surface.vertex_count <= 65536 && new_surface.vertex_count > 0;
glGenBuffers(1, &s->index_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->index_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ELEMENT_ARRAY_BUFFER, s->index_buffer, new_surface.index_data.size(), new_surface.index_data.ptr(), GL_STATIC_DRAW, "Mesh index buffer");
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); //unbind
s->index_count = new_surface.index_count;
s->index_buffer_size = new_surface.index_data.size();
if (new_surface.lods.size()) {
s->lods = memnew_arr(Mesh::Surface::LOD, new_surface.lods.size());
s->lod_count = new_surface.lods.size();
for (int i = 0; i < new_surface.lods.size(); i++) {
glGenBuffers(1, &s->lods[i].index_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->lods[i].index_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ELEMENT_ARRAY_BUFFER, s->lods[i].index_buffer, new_surface.lods[i].index_data.size(), new_surface.lods[i].index_data.ptr(), GL_STATIC_DRAW, "Mesh index buffer LOD[" + itos(i) + "]");
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); //unbind
s->lods[i].edge_length = new_surface.lods[i].edge_length;
s->lods[i].index_count = new_surface.lods[i].index_data.size() / (is_index_16 ? 2 : 4);
s->lods[i].index_buffer_size = new_surface.lods[i].index_data.size();
}
}
}
ERR_FAIL_COND_MSG(!new_surface.index_count && !new_surface.vertex_count, "Meshes must contain a vertex array, an index array, or both");
if (GLES3::Config::get_singleton()->generate_wireframes && s->primitive == RS::PRIMITIVE_TRIANGLES) {
// Generate wireframes. This is mostly used by the editor.
s->wireframe = memnew(Mesh::Surface::Wireframe);
Vector<uint32_t> wf_indices;
uint32_t &wf_index_count = s->wireframe->index_count;
uint32_t *wr = nullptr;
if (new_surface.format & RS::ARRAY_FORMAT_INDEX) {
wf_index_count = s->index_count * 2;
wf_indices.resize(wf_index_count);
Vector<uint8_t> ir = new_surface.index_data;
wr = wf_indices.ptrw();
if (new_surface.vertex_count < (1 << 16)) {
// Read 16 bit indices.
const uint16_t *src_idx = (const uint16_t *)ir.ptr();
for (uint32_t i = 0; i + 5 < wf_index_count; i += 6) {
// We use GL_LINES instead of GL_TRIANGLES for drawing these primitives later,
// so we need double the indices for each triangle.
wr[i + 0] = src_idx[i / 2];
wr[i + 1] = src_idx[i / 2 + 1];
wr[i + 2] = src_idx[i / 2 + 1];
wr[i + 3] = src_idx[i / 2 + 2];
wr[i + 4] = src_idx[i / 2 + 2];
wr[i + 5] = src_idx[i / 2];
}
} else {
// Read 32 bit indices.
const uint32_t *src_idx = (const uint32_t *)ir.ptr();
for (uint32_t i = 0; i + 5 < wf_index_count; i += 6) {
wr[i + 0] = src_idx[i / 2];
wr[i + 1] = src_idx[i / 2 + 1];
wr[i + 2] = src_idx[i / 2 + 1];
wr[i + 3] = src_idx[i / 2 + 2];
wr[i + 4] = src_idx[i / 2 + 2];
wr[i + 5] = src_idx[i / 2];
}
}
} else {
// Not using indices.
wf_index_count = s->vertex_count * 2;
wf_indices.resize(wf_index_count);
wr = wf_indices.ptrw();
for (uint32_t i = 0; i + 5 < wf_index_count; i += 6) {
wr[i + 0] = i / 2;
wr[i + 1] = i / 2 + 1;
wr[i + 2] = i / 2 + 1;
wr[i + 3] = i / 2 + 2;
wr[i + 4] = i / 2 + 2;
wr[i + 5] = i / 2;
}
}
s->wireframe->index_buffer_size = wf_index_count * sizeof(uint32_t);
glGenBuffers(1, &s->wireframe->index_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, s->wireframe->index_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ELEMENT_ARRAY_BUFFER, s->wireframe->index_buffer, s->wireframe->index_buffer_size, wr, GL_STATIC_DRAW, "Mesh wireframe index buffer");
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); // unbind
}
s->aabb = new_surface.aabb;
s->bone_aabbs = new_surface.bone_aabbs; //only really useful for returning them.
s->mesh_to_skeleton_xform = p_surface.mesh_to_skeleton_xform;
s->uv_scale = new_surface.uv_scale;
if (new_surface.skin_data.size() || mesh->blend_shape_count > 0) {
// Size must match the size of the vertex array.
int size = new_surface.vertex_data.size();
int vertex_size = 0;
int position_stride = 0;
int normal_tangent_stride = 0;
int normal_offset = 0;
int tangent_offset = 0;
if ((new_surface.format & (1ULL << RS::ARRAY_VERTEX))) {
if (new_surface.format & RS::ARRAY_FLAG_USE_2D_VERTICES) {
vertex_size = 2;
position_stride = sizeof(float) * vertex_size;
} else {
if (new_surface.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
vertex_size = 4;
position_stride = sizeof(uint16_t) * vertex_size;
} else {
vertex_size = 3;
position_stride = sizeof(float) * vertex_size;
}
}
}
if ((new_surface.format & (1ULL << RS::ARRAY_NORMAL))) {
normal_offset = position_stride * s->vertex_count;
normal_tangent_stride += sizeof(uint16_t) * 2;
}
if ((new_surface.format & (1ULL << RS::ARRAY_TANGENT))) {
tangent_offset = normal_offset + normal_tangent_stride;
normal_tangent_stride += sizeof(uint16_t) * 2;
}
if (mesh->blend_shape_count > 0) {
// Blend shapes are passed as one large array, for OpenGL, we need to split each of them into their own buffer
s->blend_shapes = memnew_arr(Mesh::Surface::BlendShape, mesh->blend_shape_count);
for (uint32_t i = 0; i < mesh->blend_shape_count; i++) {
glGenVertexArrays(1, &s->blend_shapes[i].vertex_array);
glBindVertexArray(s->blend_shapes[i].vertex_array);
glGenBuffers(1, &s->blend_shapes[i].vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, s->blend_shapes[i].vertex_buffer);
GLES3::Utilities::get_singleton()->buffer_allocate_data(GL_ARRAY_BUFFER, s->blend_shapes[i].vertex_buffer, size, new_surface.blend_shape_data.ptr() + i * size, (s->format & RS::ARRAY_FLAG_USE_DYNAMIC_UPDATE) ? GL_DYNAMIC_DRAW : GL_STATIC_DRAW, "Mesh blend shape buffer");
if ((new_surface.format & (1ULL << RS::ARRAY_VERTEX))) {
glEnableVertexAttribArray(RS::ARRAY_VERTEX + 3);
glVertexAttribPointer(RS::ARRAY_VERTEX + 3, vertex_size, GL_FLOAT, GL_FALSE, position_stride, CAST_INT_TO_UCHAR_PTR(0));
}
if ((new_surface.format & (1ULL << RS::ARRAY_NORMAL))) {
// Normal and tangent are packed into the same attribute.
glEnableVertexAttribArray(RS::ARRAY_NORMAL + 3);
glVertexAttribPointer(RS::ARRAY_NORMAL + 3, 2, GL_UNSIGNED_SHORT, GL_TRUE, normal_tangent_stride, CAST_INT_TO_UCHAR_PTR(normal_offset));
}
if ((p_surface.format & (1ULL << RS::ARRAY_TANGENT))) {
glEnableVertexAttribArray(RS::ARRAY_TANGENT + 3);
glVertexAttribPointer(RS::ARRAY_TANGENT + 3, 2, GL_UNSIGNED_SHORT, GL_TRUE, normal_tangent_stride, CAST_INT_TO_UCHAR_PTR(tangent_offset));
}
}
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
glBindVertexArray(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
if (mesh->surface_count == 0) {
mesh->aabb = new_surface.aabb;
} else {
mesh->aabb.merge_with(new_surface.aabb);
}
mesh->skeleton_aabb_version = 0;
s->material = new_surface.material;
mesh->surfaces = (Mesh::Surface **)memrealloc(mesh->surfaces, sizeof(Mesh::Surface *) * (mesh->surface_count + 1));
mesh->surfaces[mesh->surface_count] = s;
mesh->surface_count++;
for (MeshInstance *mi : mesh->instances) {
_mesh_instance_add_surface(mi, mesh, mesh->surface_count - 1);
}
mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
for (Mesh *E : mesh->shadow_owners) {
Mesh *shadow_owner = E;
shadow_owner->shadow_mesh = RID();
shadow_owner->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
}
mesh->material_cache.clear();
}
int MeshStorage::mesh_get_blend_shape_count(RID p_mesh) const {
const Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, -1);
return mesh->blend_shape_count;
}
void MeshStorage::mesh_set_blend_shape_mode(RID p_mesh, RS::BlendShapeMode p_mode) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_INDEX((int)p_mode, 2);
mesh->blend_shape_mode = p_mode;
}
RS::BlendShapeMode MeshStorage::mesh_get_blend_shape_mode(RID p_mesh) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, RS::BLEND_SHAPE_MODE_NORMALIZED);
return mesh->blend_shape_mode;
}
void MeshStorage::mesh_surface_update_vertex_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
ERR_FAIL_COND(p_data.is_empty());
uint64_t data_size = p_data.size();
ERR_FAIL_COND(p_offset + data_size > mesh->surfaces[p_surface]->vertex_buffer_size);
const uint8_t *r = p_data.ptr();
glBindBuffer(GL_ARRAY_BUFFER, mesh->surfaces[p_surface]->vertex_buffer);
glBufferSubData(GL_ARRAY_BUFFER, p_offset, data_size, r);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void MeshStorage::mesh_surface_update_attribute_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
ERR_FAIL_COND(p_data.is_empty());
uint64_t data_size = p_data.size();
ERR_FAIL_COND(p_offset + data_size > mesh->surfaces[p_surface]->attribute_buffer_size);
const uint8_t *r = p_data.ptr();
glBindBuffer(GL_ARRAY_BUFFER, mesh->surfaces[p_surface]->attribute_buffer);
glBufferSubData(GL_ARRAY_BUFFER, p_offset, data_size, r);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void MeshStorage::mesh_surface_update_skin_region(RID p_mesh, int p_surface, int p_offset, const Vector<uint8_t> &p_data) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
ERR_FAIL_COND(p_data.is_empty());
uint64_t data_size = p_data.size();
ERR_FAIL_COND(p_offset + data_size > mesh->surfaces[p_surface]->skin_buffer_size);
const uint8_t *r = p_data.ptr();
glBindBuffer(GL_ARRAY_BUFFER, mesh->surfaces[p_surface]->skin_buffer);
glBufferSubData(GL_ARRAY_BUFFER, p_offset, data_size, r);
glBindBuffer(GL_ARRAY_BUFFER, 0);
}
void MeshStorage::mesh_surface_set_material(RID p_mesh, int p_surface, RID p_material) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
ERR_FAIL_UNSIGNED_INDEX((uint32_t)p_surface, mesh->surface_count);
mesh->surfaces[p_surface]->material = p_material;
mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MATERIAL);
mesh->material_cache.clear();
}
RID MeshStorage::mesh_surface_get_material(RID p_mesh, int p_surface) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, RID());
ERR_FAIL_UNSIGNED_INDEX_V((uint32_t)p_surface, mesh->surface_count, RID());
return mesh->surfaces[p_surface]->material;
}
RS::SurfaceData MeshStorage::mesh_get_surface(RID p_mesh, int p_surface) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, RS::SurfaceData());
ERR_FAIL_UNSIGNED_INDEX_V((uint32_t)p_surface, mesh->surface_count, RS::SurfaceData());
Mesh::Surface &s = *mesh->surfaces[p_surface];
RS::SurfaceData sd;
sd.format = s.format;
if (s.vertex_buffer != 0) {
sd.vertex_data = Utilities::buffer_get_data(GL_ARRAY_BUFFER, s.vertex_buffer, s.vertex_buffer_size);
// When using an uncompressed buffer with normals, but without tangents, we have to trim the padding.
if (!(s.format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) && (s.format & RS::ARRAY_FORMAT_NORMAL) && !(s.format & RS::ARRAY_FORMAT_TANGENT)) {
sd.vertex_data.resize(sd.vertex_data.size() - sizeof(uint16_t) * 2);
}
}
if (s.attribute_buffer != 0) {
sd.attribute_data = Utilities::buffer_get_data(GL_ARRAY_BUFFER, s.attribute_buffer, s.attribute_buffer_size);
}
if (s.skin_buffer != 0) {
sd.skin_data = Utilities::buffer_get_data(GL_ARRAY_BUFFER, s.skin_buffer, s.skin_buffer_size);
}
sd.vertex_count = s.vertex_count;
sd.index_count = s.index_count;
sd.primitive = s.primitive;
if (sd.index_count) {
sd.index_data = Utilities::buffer_get_data(GL_ELEMENT_ARRAY_BUFFER, s.index_buffer, s.index_buffer_size);
}
sd.aabb = s.aabb;
for (uint32_t i = 0; i < s.lod_count; i++) {
RS::SurfaceData::LOD lod;
lod.edge_length = s.lods[i].edge_length;
lod.index_data = Utilities::buffer_get_data(GL_ELEMENT_ARRAY_BUFFER, s.lods[i].index_buffer, s.lods[i].index_buffer_size);
sd.lods.push_back(lod);
}
sd.bone_aabbs = s.bone_aabbs;
sd.mesh_to_skeleton_xform = s.mesh_to_skeleton_xform;
if (mesh->blend_shape_count) {
sd.blend_shape_data = Vector<uint8_t>();
for (uint32_t i = 0; i < mesh->blend_shape_count; i++) {
sd.blend_shape_data.append_array(Utilities::buffer_get_data(GL_ARRAY_BUFFER, s.blend_shapes[i].vertex_buffer, s.vertex_buffer_size));
}
}
sd.uv_scale = s.uv_scale;
return sd;
}
int MeshStorage::mesh_get_surface_count(RID p_mesh) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, 0);
return mesh->surface_count;
}
void MeshStorage::mesh_set_custom_aabb(RID p_mesh, const AABB &p_aabb) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
mesh->custom_aabb = p_aabb;
mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
}
AABB MeshStorage::mesh_get_custom_aabb(RID p_mesh) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, AABB());
return mesh->custom_aabb;
}
AABB MeshStorage::mesh_get_aabb(RID p_mesh, RID p_skeleton) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, AABB());
if (mesh->custom_aabb != AABB()) {
return mesh->custom_aabb;
}
Skeleton *skeleton = skeleton_owner.get_or_null(p_skeleton);
if (!skeleton || skeleton->size == 0 || mesh->skeleton_aabb_version == skeleton->version) {
return mesh->aabb;
}
// Calculate AABB based on Skeleton
AABB aabb;
for (uint32_t i = 0; i < mesh->surface_count; i++) {
AABB laabb;
const Mesh::Surface &surface = *mesh->surfaces[i];
if ((surface.format & RS::ARRAY_FORMAT_BONES) && surface.bone_aabbs.size()) {
int bs = surface.bone_aabbs.size();
const AABB *skbones = surface.bone_aabbs.ptr();
int sbs = skeleton->size;
ERR_CONTINUE(bs > sbs);
const float *baseptr = skeleton->data.ptr();
bool found_bone_aabb = false;
if (skeleton->use_2d) {
for (int j = 0; j < bs; j++) {
if (skbones[j].size == Vector3(-1, -1, -1)) {
continue; //bone is unused
}
const float *dataptr = baseptr + j * 8;
Transform3D mtx;
mtx.basis.rows[0][0] = dataptr[0];
mtx.basis.rows[0][1] = dataptr[1];
mtx.origin.x = dataptr[3];
mtx.basis.rows[1][0] = dataptr[4];
mtx.basis.rows[1][1] = dataptr[5];
mtx.origin.y = dataptr[7];
// Transform bounds to skeleton's space before applying animation data.
AABB baabb = surface.mesh_to_skeleton_xform.xform(skbones[j]);
baabb = mtx.xform(baabb);
if (!found_bone_aabb) {
laabb = baabb;
found_bone_aabb = true;
} else {
laabb.merge_with(baabb);
}
}
} else {
for (int j = 0; j < bs; j++) {
if (skbones[j].size == Vector3(-1, -1, -1)) {
continue; //bone is unused
}
const float *dataptr = baseptr + j * 12;
Transform3D mtx;
mtx.basis.rows[0][0] = dataptr[0];
mtx.basis.rows[0][1] = dataptr[1];
mtx.basis.rows[0][2] = dataptr[2];
mtx.origin.x = dataptr[3];
mtx.basis.rows[1][0] = dataptr[4];
mtx.basis.rows[1][1] = dataptr[5];
mtx.basis.rows[1][2] = dataptr[6];
mtx.origin.y = dataptr[7];
mtx.basis.rows[2][0] = dataptr[8];
mtx.basis.rows[2][1] = dataptr[9];
mtx.basis.rows[2][2] = dataptr[10];
mtx.origin.z = dataptr[11];
// Transform bounds to skeleton's space before applying animation data.
AABB baabb = surface.mesh_to_skeleton_xform.xform(skbones[j]);
baabb = mtx.xform(baabb);
if (!found_bone_aabb) {
laabb = baabb;
found_bone_aabb = true;
} else {
laabb.merge_with(baabb);
}
}
}
if (found_bone_aabb) {
// Transform skeleton bounds back to mesh's space if any animated AABB applied.
laabb = surface.mesh_to_skeleton_xform.affine_inverse().xform(laabb);
}
if (laabb.size == Vector3()) {
laabb = surface.aabb;
}
} else {
laabb = surface.aabb;
}
if (i == 0) {
aabb = laabb;
} else {
aabb.merge_with(laabb);
}
}
mesh->aabb = aabb;
mesh->skeleton_aabb_version = skeleton->version;
return aabb;
}
void MeshStorage::mesh_set_path(RID p_mesh, const String &p_path) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
mesh->path = p_path;
}
String MeshStorage::mesh_get_path(RID p_mesh) const {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL_V(mesh, String());
return mesh->path;
}
void MeshStorage::mesh_set_shadow_mesh(RID p_mesh, RID p_shadow_mesh) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
Mesh *shadow_mesh = mesh_owner.get_or_null(mesh->shadow_mesh);
if (shadow_mesh) {
shadow_mesh->shadow_owners.erase(mesh);
}
mesh->shadow_mesh = p_shadow_mesh;
shadow_mesh = mesh_owner.get_or_null(mesh->shadow_mesh);
if (shadow_mesh) {
shadow_mesh->shadow_owners.insert(mesh);
}
mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
}
void MeshStorage::mesh_clear(RID p_mesh) {
Mesh *mesh = mesh_owner.get_or_null(p_mesh);
ERR_FAIL_NULL(mesh);
// Clear instance data before mesh data.
for (MeshInstance *mi : mesh->instances) {
_mesh_instance_clear(mi);
}
for (uint32_t i = 0; i < mesh->surface_count; i++) {
Mesh::Surface &s = *mesh->surfaces[i];
if (s.vertex_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.vertex_buffer);
s.vertex_buffer = 0;
}
if (s.version_count != 0) {
for (uint32_t j = 0; j < s.version_count; j++) {
glDeleteVertexArrays(1, &s.versions[j].vertex_array);
s.versions[j].vertex_array = 0;
}
}
if (s.attribute_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.attribute_buffer);
s.attribute_buffer = 0;
}
if (s.skin_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.skin_buffer);
s.skin_buffer = 0;
}
if (s.index_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.index_buffer);
s.index_buffer = 0;
}
if (s.versions) {
memfree(s.versions); //reallocs, so free with memfree.
}
if (s.wireframe) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.wireframe->index_buffer);
memdelete(s.wireframe);
}
if (s.lod_count) {
for (uint32_t j = 0; j < s.lod_count; j++) {
if (s.lods[j].index_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.lods[j].index_buffer);
s.lods[j].index_buffer = 0;
}
}
memdelete_arr(s.lods);
}
if (mesh->blend_shape_count) {
for (uint32_t j = 0; j < mesh->blend_shape_count; j++) {
if (s.blend_shapes[j].vertex_buffer != 0) {
GLES3::Utilities::get_singleton()->buffer_free_data(s.blend_shapes[j].vertex_buffer);
s.blend_shapes[j].vertex_buffer = 0;
}
if (s.blend_shapes[j].vertex_array != 0) {
glDeleteVertexArrays(1, &s.blend_shapes[j].vertex_array);
s.blend_shapes[j].vertex_array = 0;
}
}
memdelete_arr(s.blend_shapes);
}
memdelete(mesh->surfaces[i]);
}
if (mesh->surfaces) {
memfree(mesh->surfaces);
}
mesh->surfaces = nullptr;
mesh->surface_count = 0;
mesh->material_cache.clear();
mesh->has_bone_weights = false;
mesh->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
for (Mesh *E : mesh->shadow_owners) {
Mesh *shadow_owner = E;
shadow_owner->shadow_mesh = RID();
shadow_owner->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_MESH);
}
}
void MeshStorage::_mesh_surface_generate_version_for_input_mask(Mesh::Surface::Version &v, Mesh::Surface *s, uint64_t p_input_mask, MeshInstance::Surface *mis) {
Mesh::Surface::Attrib attribs[RS::ARRAY_MAX];
int position_stride = 0; // Vertex position only.
int normal_tangent_stride = 0;
int attributes_stride = 0;
int skin_stride = 0;
for (int i = 0; i < RS::ARRAY_INDEX; i++) {
attribs[i].enabled = false;
attribs[i].integer = false;
if (!(s->format & (1ULL << i))) {
continue;
}
if ((p_input_mask & (1ULL << i))) {
// Only enable if it matches input mask.
// Iterate over all anyway, so we can calculate stride.
attribs[i].enabled = true;
}
switch (i) {
case RS::ARRAY_VERTEX: {
attribs[i].offset = 0;
attribs[i].type = GL_FLOAT;
attribs[i].normalized = GL_FALSE;
if (s->format & RS::ARRAY_FLAG_USE_2D_VERTICES) {
attribs[i].size = 2;
position_stride = attribs[i].size * sizeof(float);
} else {
if (!mis && (s->format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) {
attribs[i].size = 4;
position_stride = attribs[i].size * sizeof(uint16_t);
attribs[i].type = GL_UNSIGNED_SHORT;
attribs[i].normalized = GL_TRUE;
} else {
attribs[i].size = 3;
position_stride = attribs[i].size * sizeof(float);
}
}
} break;
case RS::ARRAY_NORMAL: {
if (!mis && (s->format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES)) {
attribs[i].size = 2;
normal_tangent_stride += 2 * attribs[i].size;
} else {
attribs[i].size = 4;
// A small trick here: if we are uncompressed and we have normals, but no tangents. We need
// the shader to think there are 4 components to "axis_tangent_attrib". So we give a size of 4,
// but a stride based on only having 2 elements.
if (!(s->format & RS::ARRAY_FORMAT_TANGENT)) {
normal_tangent_stride += (mis ? sizeof(float) : sizeof(uint16_t)) * 2;
} else {
normal_tangent_stride += (mis ? sizeof(float) : sizeof(uint16_t)) * 4;
}
}
if (mis) {
// Transform feedback has interleave all or no attributes. It can't mix interleaving.
attribs[i].offset = position_stride;
normal_tangent_stride += position_stride;
position_stride = normal_tangent_stride;
} else {
attribs[i].offset = position_stride * s->vertex_count;
}
attribs[i].type = (mis ? GL_FLOAT : GL_UNSIGNED_SHORT);
attribs[i].normalized = GL_TRUE;
} break;
case RS::ARRAY_TANGENT: {
// We never use the tangent attribute. It is always packed in ARRAY_NORMAL, or ARRAY_VERTEX.
attribs[i].enabled = false;
attribs[i].integer = false;
} break;
case RS::ARRAY_COLOR: {
attribs[i].offset = attributes_stride;
attribs[i].size = 4;
attribs[i].type = GL_UNSIGNED_BYTE;
attributes_stride += 4;
attribs[i].normalized = GL_TRUE;
} break;
case RS::ARRAY_TEX_UV: {
attribs[i].offset = attributes_stride;
attribs[i].size = 2;
if (s->format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
attribs[i].type = GL_UNSIGNED_SHORT;
attributes_stride += 2 * sizeof(uint16_t);
attribs[i].normalized = GL_TRUE;
} else {
attribs[i].type = GL_FLOAT;
attributes_stride += 2 * sizeof(float);
attribs[i].normalized = GL_FALSE;
}
} break;
case RS::ARRAY_TEX_UV2: {
attribs[i].offset = attributes_stride;
attribs[i].size = 2;
if (s->format & RS::ARRAY_FLAG_COMPRESS_ATTRIBUTES) {
attribs[i].type = GL_UNSIGNED_SHORT;
attributes_stride += 2 * sizeof(uint16_t);
attribs[i].normalized = GL_TRUE;
} else {
attribs[i].type = GL_FLOAT;
attributes_stride += 2 * sizeof(float);
attribs[i].normalized = GL_FALSE;
}
} break;
case RS::ARRAY_CUSTOM0:
case RS::ARRAY_CUSTOM1:
case RS::ARRAY_CUSTOM2:
case RS::ARRAY_CUSTOM3: {
attribs[i].offset = attributes_stride;
int idx = i - RS::ARRAY_CUSTOM0;
uint32_t fmt_shift[RS::ARRAY_CUSTOM_COUNT] = { RS::ARRAY_FORMAT_CUSTOM0_SHIFT, RS::ARRAY_FORMAT_CUSTOM1_SHIFT, RS::ARRAY_FORMAT_CUSTOM2_SHIFT, RS::ARRAY_FORMAT_CUSTOM3_SHIFT };
uint32_t fmt = (s->format >> fmt_shift[idx]) & RS::ARRAY_FORMAT_CUSTOM_MASK;
uint32_t fmtsize[RS::ARRAY_CUSTOM_MAX] = { 4, 4, 4, 8, 4, 8, 12, 16 };
GLenum gl_type[RS::ARRAY_CUSTOM_MAX] = { GL_UNSIGNED_BYTE, GL_BYTE, GL_HALF_FLOAT, GL_HALF_FLOAT, GL_FLOAT, GL_FLOAT, GL_FLOAT, GL_FLOAT };
GLboolean norm[RS::ARRAY_CUSTOM_MAX] = { GL_TRUE, GL_TRUE, GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE };
attribs[i].type = gl_type[fmt];
attributes_stride += fmtsize[fmt];
attribs[i].size = fmtsize[fmt] / sizeof(float);
attribs[i].normalized = norm[fmt];
} break;
case RS::ARRAY_BONES: {
attribs[i].offset = skin_stride;
attribs[i].size = 4;
attribs[i].type = GL_UNSIGNED_SHORT;
skin_stride += 4 * sizeof(uint16_t);
attribs[i].normalized = GL_FALSE;
attribs[i].integer = true;
} break;
case RS::ARRAY_WEIGHTS: {
attribs[i].offset = skin_stride;
attribs[i].size = 4;
attribs[i].type = GL_UNSIGNED_SHORT;
skin_stride += 4 * sizeof(uint16_t);
attribs[i].normalized = GL_TRUE;
} break;
}
}
glGenVertexArrays(1, &v.vertex_array);
glBindVertexArray(v.vertex_array);
for (int i = 0; i < RS::ARRAY_INDEX; i++) {
if (!attribs[i].enabled) {