861 lines
30 KiB
C++
861 lines
30 KiB
C++
/*************************************************************************/
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/* scene_importer_mesh.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "scene_importer_mesh.h"
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#include "core/math/math_defs.h"
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#include "scene/resources/surface_tool.h"
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void EditorSceneImporterMesh::add_blend_shape(const String &p_name) {
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ERR_FAIL_COND(surfaces.size() > 0);
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blend_shapes.push_back(p_name);
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}
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int EditorSceneImporterMesh::get_blend_shape_count() const {
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return blend_shapes.size();
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}
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String EditorSceneImporterMesh::get_blend_shape_name(int p_blend_shape) const {
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ERR_FAIL_INDEX_V(p_blend_shape, blend_shapes.size(), String());
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return blend_shapes[p_blend_shape];
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}
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void EditorSceneImporterMesh::set_blend_shape_mode(Mesh::BlendShapeMode p_blend_shape_mode) {
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blend_shape_mode = p_blend_shape_mode;
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}
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Mesh::BlendShapeMode EditorSceneImporterMesh::get_blend_shape_mode() const {
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return blend_shape_mode;
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}
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void EditorSceneImporterMesh::add_surface(Mesh::PrimitiveType p_primitive, const Array &p_arrays, const Array &p_blend_shapes, const Dictionary &p_lods, const Ref<Material> &p_material, const String &p_name) {
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ERR_FAIL_COND(p_blend_shapes.size() != blend_shapes.size());
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ERR_FAIL_COND(p_arrays.size() != Mesh::ARRAY_MAX);
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Surface s;
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s.primitive = p_primitive;
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s.arrays = p_arrays;
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s.name = p_name;
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Vector<Vector3> vertex_array = p_arrays[Mesh::ARRAY_VERTEX];
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int vertex_count = vertex_array.size();
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ERR_FAIL_COND(vertex_count == 0);
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for (int i = 0; i < blend_shapes.size(); i++) {
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Array bsdata = p_blend_shapes[i];
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ERR_FAIL_COND(bsdata.size() != Mesh::ARRAY_MAX);
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Vector<Vector3> vertex_data = bsdata[Mesh::ARRAY_VERTEX];
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ERR_FAIL_COND(vertex_data.size() != vertex_count);
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Surface::BlendShape bs;
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bs.arrays = bsdata;
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s.blend_shape_data.push_back(bs);
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}
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List<Variant> lods;
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p_lods.get_key_list(&lods);
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for (const Variant &E : lods) {
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ERR_CONTINUE(!E.is_num());
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Surface::LOD lod;
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lod.distance = E;
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lod.indices = p_lods[E];
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ERR_CONTINUE(lod.indices.size() == 0);
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s.lods.push_back(lod);
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}
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s.material = p_material;
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surfaces.push_back(s);
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mesh.unref();
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}
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int EditorSceneImporterMesh::get_surface_count() const {
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return surfaces.size();
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}
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Mesh::PrimitiveType EditorSceneImporterMesh::get_surface_primitive_type(int p_surface) {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), Mesh::PRIMITIVE_MAX);
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return surfaces[p_surface].primitive;
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}
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Array EditorSceneImporterMesh::get_surface_arrays(int p_surface) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), Array());
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return surfaces[p_surface].arrays;
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}
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String EditorSceneImporterMesh::get_surface_name(int p_surface) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), String());
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return surfaces[p_surface].name;
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}
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void EditorSceneImporterMesh::set_surface_name(int p_surface, const String &p_name) {
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ERR_FAIL_INDEX(p_surface, surfaces.size());
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surfaces.write[p_surface].name = p_name;
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mesh.unref();
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}
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Array EditorSceneImporterMesh::get_surface_blend_shape_arrays(int p_surface, int p_blend_shape) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), Array());
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ERR_FAIL_INDEX_V(p_blend_shape, surfaces[p_surface].blend_shape_data.size(), Array());
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return surfaces[p_surface].blend_shape_data[p_blend_shape].arrays;
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}
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int EditorSceneImporterMesh::get_surface_lod_count(int p_surface) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), 0);
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return surfaces[p_surface].lods.size();
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}
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Vector<int> EditorSceneImporterMesh::get_surface_lod_indices(int p_surface, int p_lod) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), Vector<int>());
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ERR_FAIL_INDEX_V(p_lod, surfaces[p_surface].lods.size(), Vector<int>());
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return surfaces[p_surface].lods[p_lod].indices;
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}
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float EditorSceneImporterMesh::get_surface_lod_size(int p_surface, int p_lod) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), 0);
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ERR_FAIL_INDEX_V(p_lod, surfaces[p_surface].lods.size(), 0);
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return surfaces[p_surface].lods[p_lod].distance;
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}
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Ref<Material> EditorSceneImporterMesh::get_surface_material(int p_surface) const {
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ERR_FAIL_INDEX_V(p_surface, surfaces.size(), Ref<Material>());
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return surfaces[p_surface].material;
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}
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void EditorSceneImporterMesh::set_surface_material(int p_surface, const Ref<Material> &p_material) {
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ERR_FAIL_INDEX(p_surface, surfaces.size());
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surfaces.write[p_surface].material = p_material;
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mesh.unref();
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}
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Basis EditorSceneImporterMesh::compute_rotation_matrix_from_ortho_6d(Vector3 p_x_raw, Vector3 p_y_raw) {
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Vector3 x = p_x_raw.normalized();
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Vector3 z = x.cross(p_y_raw);
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z = z.normalized();
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Vector3 y = z.cross(x);
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Basis basis;
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basis.set_axis(Vector3::AXIS_X, x);
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basis.set_axis(Vector3::AXIS_Y, y);
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basis.set_axis(Vector3::AXIS_Z, z);
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return basis;
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}
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void EditorSceneImporterMesh::generate_lods() {
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if (!SurfaceTool::simplify_func) {
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return;
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}
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if (!SurfaceTool::simplify_scale_func) {
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return;
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}
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if (!SurfaceTool::simplify_sloppy_func) {
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return;
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}
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if (!SurfaceTool::simplify_with_attrib_func) {
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return;
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}
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for (int i = 0; i < surfaces.size(); i++) {
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if (surfaces[i].primitive != Mesh::PRIMITIVE_TRIANGLES) {
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continue;
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}
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surfaces.write[i].lods.clear();
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Vector<Vector3> vertices = surfaces[i].arrays[RS::ARRAY_VERTEX];
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Vector<int> indices = surfaces[i].arrays[RS::ARRAY_INDEX];
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if (indices.size() == 0) {
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continue; //no lods if no indices
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}
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Vector<Vector3> normals = surfaces[i].arrays[RS::ARRAY_NORMAL];
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uint32_t vertex_count = vertices.size();
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const Vector3 *vertices_ptr = vertices.ptr();
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Vector<float> attributes;
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Vector<float> normal_weights;
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int32_t attribute_count = 6;
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if (normals.size()) {
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attributes.resize(normals.size() * attribute_count);
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for (int32_t normal_i = 0; normal_i < normals.size(); normal_i++) {
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Basis basis;
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basis.set_euler(normals[normal_i]);
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Vector3 basis_x = basis.get_axis(0);
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Vector3 basis_y = basis.get_axis(1);
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basis = compute_rotation_matrix_from_ortho_6d(basis_x, basis_y);
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basis_x = basis.get_axis(0);
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basis_y = basis.get_axis(1);
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attributes.write[normal_i * attribute_count + 0] = basis_x.x;
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attributes.write[normal_i * attribute_count + 1] = basis_x.y;
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attributes.write[normal_i * attribute_count + 2] = basis_x.z;
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attributes.write[normal_i * attribute_count + 3] = basis_y.x;
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attributes.write[normal_i * attribute_count + 4] = basis_y.y;
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attributes.write[normal_i * attribute_count + 5] = basis_y.z;
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}
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normal_weights.resize(vertex_count);
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for (int32_t weight_i = 0; weight_i < normal_weights.size(); weight_i++) {
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normal_weights.write[weight_i] = 1.0;
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}
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} else {
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attribute_count = 0;
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}
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const int min_indices = 10;
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const float error_tolerance = 1.44224'95703; // Cube root of 3
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const float threshold = 1.0 / error_tolerance;
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int index_target = indices.size() * threshold;
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float max_mesh_error_percentage = 1e0f;
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float mesh_error = 0.0f;
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float scale = SurfaceTool::simplify_scale_func((const float *)vertices_ptr, vertex_count, sizeof(Vector3));
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while (index_target > min_indices) {
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Vector<int> new_indices;
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new_indices.resize(indices.size());
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size_t new_len = SurfaceTool::simplify_with_attrib_func((unsigned int *)new_indices.ptrw(), (const unsigned int *)indices.ptr(), indices.size(), (const float *)vertices_ptr, vertex_count, sizeof(Vector3), index_target, max_mesh_error_percentage, &mesh_error, (float *)attributes.ptrw(), normal_weights.ptrw(), attribute_count);
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if ((int)new_len > (index_target * error_tolerance)) {
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break;
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}
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Surface::LOD lod;
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lod.distance = mesh_error * scale;
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if (Math::is_zero_approx(mesh_error)) {
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break;
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}
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if (new_len <= 0) {
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break;
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}
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new_indices.resize(new_len);
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lod.indices = new_indices;
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print_line("Lod " + itos(surfaces.write[i].lods.size()) + " begin with " + itos(indices.size() / 3) + " triangles and shoot for " + itos(index_target / 3) + " triangles. Got " + itos(new_len / 3) + " triangles. Lod screen ratio " + rtos(lod.distance));
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surfaces.write[i].lods.push_back(lod);
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index_target *= threshold;
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}
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}
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}
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bool EditorSceneImporterMesh::has_mesh() const {
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return mesh.is_valid();
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}
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Ref<ArrayMesh> EditorSceneImporterMesh::get_mesh(const Ref<ArrayMesh> &p_base) {
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ERR_FAIL_COND_V(surfaces.size() == 0, Ref<ArrayMesh>());
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if (mesh.is_null()) {
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if (p_base.is_valid()) {
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mesh = p_base;
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}
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if (mesh.is_null()) {
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mesh.instantiate();
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}
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mesh->set_name(get_name());
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if (has_meta("import_id")) {
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mesh->set_meta("import_id", get_meta("import_id"));
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}
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for (int i = 0; i < blend_shapes.size(); i++) {
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mesh->add_blend_shape(blend_shapes[i]);
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}
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mesh->set_blend_shape_mode(blend_shape_mode);
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for (int i = 0; i < surfaces.size(); i++) {
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Array bs_data;
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if (surfaces[i].blend_shape_data.size()) {
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for (int j = 0; j < surfaces[i].blend_shape_data.size(); j++) {
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bs_data.push_back(surfaces[i].blend_shape_data[j].arrays);
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}
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}
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Dictionary lods;
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if (surfaces[i].lods.size()) {
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for (int j = 0; j < surfaces[i].lods.size(); j++) {
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lods[surfaces[i].lods[j].distance] = surfaces[i].lods[j].indices;
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}
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}
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mesh->add_surface_from_arrays(surfaces[i].primitive, surfaces[i].arrays, bs_data, lods);
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if (surfaces[i].material.is_valid()) {
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mesh->surface_set_material(mesh->get_surface_count() - 1, surfaces[i].material);
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}
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if (surfaces[i].name != String()) {
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mesh->surface_set_name(mesh->get_surface_count() - 1, surfaces[i].name);
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}
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}
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mesh->set_lightmap_size_hint(lightmap_size_hint);
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if (shadow_mesh.is_valid()) {
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Ref<ArrayMesh> shadow = shadow_mesh->get_mesh();
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mesh->set_shadow_mesh(shadow);
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}
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}
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return mesh;
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}
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void EditorSceneImporterMesh::clear() {
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surfaces.clear();
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blend_shapes.clear();
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mesh.unref();
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}
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void EditorSceneImporterMesh::create_shadow_mesh() {
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if (shadow_mesh.is_valid()) {
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shadow_mesh.unref();
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}
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//no shadow mesh for blendshapes
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if (blend_shapes.size() > 0) {
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return;
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}
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//no shadow mesh for skeletons
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for (int i = 0; i < surfaces.size(); i++) {
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if (surfaces[i].arrays[RS::ARRAY_BONES].get_type() != Variant::NIL) {
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return;
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}
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if (surfaces[i].arrays[RS::ARRAY_WEIGHTS].get_type() != Variant::NIL) {
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return;
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}
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}
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shadow_mesh.instantiate();
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for (int i = 0; i < surfaces.size(); i++) {
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LocalVector<int> vertex_remap;
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Vector<Vector3> new_vertices;
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Vector<Vector3> vertices = surfaces[i].arrays[RS::ARRAY_VERTEX];
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int vertex_count = vertices.size();
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{
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Map<Vector3, int> unique_vertices;
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const Vector3 *vptr = vertices.ptr();
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for (int j = 0; j < vertex_count; j++) {
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Vector3 v = vptr[j];
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Map<Vector3, int>::Element *E = unique_vertices.find(v);
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if (E) {
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vertex_remap.push_back(E->get());
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} else {
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int vcount = unique_vertices.size();
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unique_vertices[v] = vcount;
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vertex_remap.push_back(vcount);
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new_vertices.push_back(v);
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}
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}
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}
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Array new_surface;
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new_surface.resize(RS::ARRAY_MAX);
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Dictionary lods;
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// print_line("original vertex count: " + itos(vertices.size()) + " new vertex count: " + itos(new_vertices.size()));
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new_surface[RS::ARRAY_VERTEX] = new_vertices;
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Vector<int> indices = surfaces[i].arrays[RS::ARRAY_INDEX];
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if (indices.size()) {
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int index_count = indices.size();
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const int *index_rptr = indices.ptr();
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Vector<int> new_indices;
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new_indices.resize(indices.size());
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int *index_wptr = new_indices.ptrw();
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for (int j = 0; j < index_count; j++) {
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int index = index_rptr[j];
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ERR_FAIL_INDEX(index, vertex_count);
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index_wptr[j] = vertex_remap[index];
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}
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new_surface[RS::ARRAY_INDEX] = new_indices;
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// Make sure the same LODs as the full version are used.
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// This makes it more coherent between rendered model and its shadows.
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for (int j = 0; j < surfaces[i].lods.size(); j++) {
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indices = surfaces[i].lods[j].indices;
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index_count = indices.size();
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index_rptr = indices.ptr();
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new_indices.resize(indices.size());
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index_wptr = new_indices.ptrw();
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for (int k = 0; k < index_count; k++) {
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int index = index_rptr[j];
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ERR_FAIL_INDEX(index, vertex_count);
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index_wptr[j] = vertex_remap[index];
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}
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lods[surfaces[i].lods[j].distance] = new_indices;
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}
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}
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shadow_mesh->add_surface(surfaces[i].primitive, new_surface, Array(), lods, Ref<Material>(), surfaces[i].name);
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}
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}
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Ref<EditorSceneImporterMesh> EditorSceneImporterMesh::get_shadow_mesh() const {
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return shadow_mesh;
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}
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void EditorSceneImporterMesh::_set_data(const Dictionary &p_data) {
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clear();
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if (p_data.has("blend_shape_names")) {
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blend_shapes = p_data["blend_shape_names"];
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}
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if (p_data.has("surfaces")) {
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Array surface_arr = p_data["surfaces"];
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for (int i = 0; i < surface_arr.size(); i++) {
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Dictionary s = surface_arr[i];
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ERR_CONTINUE(!s.has("primitive"));
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ERR_CONTINUE(!s.has("arrays"));
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Mesh::PrimitiveType prim = Mesh::PrimitiveType(int(s["primitive"]));
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ERR_CONTINUE(prim >= Mesh::PRIMITIVE_MAX);
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Array arr = s["arrays"];
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Dictionary lods;
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String name;
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if (s.has("name")) {
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name = s["name"];
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}
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if (s.has("lods")) {
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lods = s["lods"];
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}
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Array blend_shapes;
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if (s.has("blend_shapes")) {
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blend_shapes = s["blend_shapes"];
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}
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Ref<Material> material;
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if (s.has("material")) {
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material = s["material"];
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}
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add_surface(prim, arr, blend_shapes, lods, material, name);
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}
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}
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}
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Dictionary EditorSceneImporterMesh::_get_data() const {
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Dictionary data;
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if (blend_shapes.size()) {
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data["blend_shape_names"] = blend_shapes;
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}
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Array surface_arr;
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for (int i = 0; i < surfaces.size(); i++) {
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Dictionary d;
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d["primitive"] = surfaces[i].primitive;
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d["arrays"] = surfaces[i].arrays;
|
|
if (surfaces[i].blend_shape_data.size()) {
|
|
Array bs_data;
|
|
for (int j = 0; j < surfaces[i].blend_shape_data.size(); j++) {
|
|
bs_data.push_back(surfaces[i].blend_shape_data[j].arrays);
|
|
}
|
|
d["blend_shapes"] = bs_data;
|
|
}
|
|
if (surfaces[i].lods.size()) {
|
|
Dictionary lods;
|
|
for (int j = 0; j < surfaces[i].lods.size(); j++) {
|
|
lods[surfaces[i].lods[j].distance] = surfaces[i].lods[j].indices;
|
|
}
|
|
d["lods"] = lods;
|
|
}
|
|
|
|
if (surfaces[i].material.is_valid()) {
|
|
d["material"] = surfaces[i].material;
|
|
}
|
|
|
|
if (surfaces[i].name != String()) {
|
|
d["name"] = surfaces[i].name;
|
|
}
|
|
|
|
surface_arr.push_back(d);
|
|
}
|
|
data["surfaces"] = surface_arr;
|
|
return data;
|
|
}
|
|
|
|
Vector<Face3> EditorSceneImporterMesh::get_faces() const {
|
|
Vector<Face3> faces;
|
|
for (int i = 0; i < surfaces.size(); i++) {
|
|
if (surfaces[i].primitive == Mesh::PRIMITIVE_TRIANGLES) {
|
|
Vector<Vector3> vertices = surfaces[i].arrays[Mesh::ARRAY_VERTEX];
|
|
Vector<int> indices = surfaces[i].arrays[Mesh::ARRAY_INDEX];
|
|
if (indices.size()) {
|
|
for (int j = 0; j < indices.size(); j += 3) {
|
|
Face3 f;
|
|
f.vertex[0] = vertices[indices[j + 0]];
|
|
f.vertex[1] = vertices[indices[j + 1]];
|
|
f.vertex[2] = vertices[indices[j + 2]];
|
|
faces.push_back(f);
|
|
}
|
|
} else {
|
|
for (int j = 0; j < vertices.size(); j += 3) {
|
|
Face3 f;
|
|
f.vertex[0] = vertices[j + 0];
|
|
f.vertex[1] = vertices[j + 1];
|
|
f.vertex[2] = vertices[j + 2];
|
|
faces.push_back(f);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return faces;
|
|
}
|
|
|
|
Vector<Ref<Shape3D>> EditorSceneImporterMesh::convex_decompose() const {
|
|
ERR_FAIL_COND_V(!Mesh::convex_composition_function, Vector<Ref<Shape3D>>());
|
|
|
|
const Vector<Face3> faces = get_faces();
|
|
|
|
Vector<Vector<Face3>> decomposed = Mesh::convex_composition_function(faces, -1);
|
|
|
|
Vector<Ref<Shape3D>> ret;
|
|
|
|
for (int i = 0; i < decomposed.size(); i++) {
|
|
Set<Vector3> points;
|
|
for (int j = 0; j < decomposed[i].size(); j++) {
|
|
points.insert(decomposed[i][j].vertex[0]);
|
|
points.insert(decomposed[i][j].vertex[1]);
|
|
points.insert(decomposed[i][j].vertex[2]);
|
|
}
|
|
|
|
Vector<Vector3> convex_points;
|
|
convex_points.resize(points.size());
|
|
{
|
|
Vector3 *w = convex_points.ptrw();
|
|
int idx = 0;
|
|
for (Set<Vector3>::Element *E = points.front(); E; E = E->next()) {
|
|
w[idx++] = E->get();
|
|
}
|
|
}
|
|
|
|
Ref<ConvexPolygonShape3D> shape;
|
|
shape.instantiate();
|
|
shape->set_points(convex_points);
|
|
ret.push_back(shape);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
Ref<Shape3D> EditorSceneImporterMesh::create_trimesh_shape() const {
|
|
Vector<Face3> faces = get_faces();
|
|
if (faces.size() == 0) {
|
|
return Ref<Shape3D>();
|
|
}
|
|
|
|
Vector<Vector3> face_points;
|
|
face_points.resize(faces.size() * 3);
|
|
|
|
for (int i = 0; i < face_points.size(); i += 3) {
|
|
Face3 f = faces.get(i / 3);
|
|
face_points.set(i, f.vertex[0]);
|
|
face_points.set(i + 1, f.vertex[1]);
|
|
face_points.set(i + 2, f.vertex[2]);
|
|
}
|
|
|
|
Ref<ConcavePolygonShape3D> shape = memnew(ConcavePolygonShape3D);
|
|
shape->set_faces(face_points);
|
|
return shape;
|
|
}
|
|
|
|
Ref<NavigationMesh> EditorSceneImporterMesh::create_navigation_mesh() {
|
|
Vector<Face3> faces = get_faces();
|
|
if (faces.size() == 0) {
|
|
return Ref<NavigationMesh>();
|
|
}
|
|
|
|
Map<Vector3, int> unique_vertices;
|
|
LocalVector<int> face_indices;
|
|
|
|
for (int i = 0; i < faces.size(); i++) {
|
|
for (int j = 0; j < 3; j++) {
|
|
Vector3 v = faces[i].vertex[j];
|
|
int idx;
|
|
if (unique_vertices.has(v)) {
|
|
idx = unique_vertices[v];
|
|
} else {
|
|
idx = unique_vertices.size();
|
|
unique_vertices[v] = idx;
|
|
}
|
|
face_indices.push_back(idx);
|
|
}
|
|
}
|
|
|
|
Vector<Vector3> vertices;
|
|
vertices.resize(unique_vertices.size());
|
|
for (Map<Vector3, int>::Element *E = unique_vertices.front(); E; E = E->next()) {
|
|
vertices.write[E->get()] = E->key();
|
|
}
|
|
|
|
Ref<NavigationMesh> nm;
|
|
nm.instantiate();
|
|
nm->set_vertices(vertices);
|
|
|
|
Vector<int> v3;
|
|
v3.resize(3);
|
|
for (uint32_t i = 0; i < face_indices.size(); i += 3) {
|
|
v3.write[0] = face_indices[i + 0];
|
|
v3.write[1] = face_indices[i + 1];
|
|
v3.write[2] = face_indices[i + 2];
|
|
nm->add_polygon(v3);
|
|
}
|
|
|
|
return nm;
|
|
}
|
|
|
|
extern bool (*array_mesh_lightmap_unwrap_callback)(float p_texel_size, const float *p_vertices, const float *p_normals, int p_vertex_count, const int *p_indices, int p_index_count, const uint8_t *p_cache_data, bool *r_use_cache, uint8_t **r_mesh_cache, int *r_mesh_cache_size, float **r_uv, int **r_vertex, int *r_vertex_count, int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y);
|
|
|
|
struct EditorSceneImporterMeshLightmapSurface {
|
|
Ref<Material> material;
|
|
LocalVector<SurfaceTool::Vertex> vertices;
|
|
Mesh::PrimitiveType primitive = Mesh::PrimitiveType::PRIMITIVE_MAX;
|
|
uint32_t format = 0;
|
|
String name;
|
|
};
|
|
|
|
Error EditorSceneImporterMesh::lightmap_unwrap_cached(const Transform3D &p_base_transform, float p_texel_size, const Vector<uint8_t> &p_src_cache, Vector<uint8_t> &r_dst_cache) {
|
|
ERR_FAIL_COND_V(!array_mesh_lightmap_unwrap_callback, ERR_UNCONFIGURED);
|
|
ERR_FAIL_COND_V_MSG(blend_shapes.size() != 0, ERR_UNAVAILABLE, "Can't unwrap mesh with blend shapes.");
|
|
|
|
LocalVector<float> vertices;
|
|
LocalVector<float> normals;
|
|
LocalVector<int> indices;
|
|
LocalVector<float> uv;
|
|
LocalVector<Pair<int, int>> uv_indices;
|
|
|
|
Vector<EditorSceneImporterMeshLightmapSurface> lightmap_surfaces;
|
|
|
|
// Keep only the scale
|
|
Basis basis = p_base_transform.get_basis();
|
|
Vector3 scale = Vector3(basis.get_axis(0).length(), basis.get_axis(1).length(), basis.get_axis(2).length());
|
|
|
|
Transform3D transform;
|
|
transform.scale(scale);
|
|
|
|
Basis normal_basis = transform.basis.inverse().transposed();
|
|
|
|
for (int i = 0; i < get_surface_count(); i++) {
|
|
EditorSceneImporterMeshLightmapSurface s;
|
|
s.primitive = get_surface_primitive_type(i);
|
|
|
|
ERR_FAIL_COND_V_MSG(s.primitive != Mesh::PRIMITIVE_TRIANGLES, ERR_UNAVAILABLE, "Only triangles are supported for lightmap unwrap.");
|
|
Array arrays = get_surface_arrays(i);
|
|
s.material = get_surface_material(i);
|
|
s.name = get_surface_name(i);
|
|
|
|
SurfaceTool::create_vertex_array_from_triangle_arrays(arrays, s.vertices, &s.format);
|
|
|
|
PackedVector3Array rvertices = arrays[Mesh::ARRAY_VERTEX];
|
|
int vc = rvertices.size();
|
|
|
|
PackedVector3Array rnormals = arrays[Mesh::ARRAY_NORMAL];
|
|
|
|
int vertex_ofs = vertices.size() / 3;
|
|
|
|
vertices.resize((vertex_ofs + vc) * 3);
|
|
normals.resize((vertex_ofs + vc) * 3);
|
|
uv_indices.resize(vertex_ofs + vc);
|
|
|
|
for (int j = 0; j < vc; j++) {
|
|
Vector3 v = transform.xform(rvertices[j]);
|
|
Vector3 n = normal_basis.xform(rnormals[j]).normalized();
|
|
|
|
vertices[(j + vertex_ofs) * 3 + 0] = v.x;
|
|
vertices[(j + vertex_ofs) * 3 + 1] = v.y;
|
|
vertices[(j + vertex_ofs) * 3 + 2] = v.z;
|
|
normals[(j + vertex_ofs) * 3 + 0] = n.x;
|
|
normals[(j + vertex_ofs) * 3 + 1] = n.y;
|
|
normals[(j + vertex_ofs) * 3 + 2] = n.z;
|
|
uv_indices[j + vertex_ofs] = Pair<int, int>(i, j);
|
|
}
|
|
|
|
PackedInt32Array rindices = arrays[Mesh::ARRAY_INDEX];
|
|
int ic = rindices.size();
|
|
|
|
float eps = 1.19209290e-7F; // Taken from xatlas.h
|
|
if (ic == 0) {
|
|
for (int j = 0; j < vc / 3; j++) {
|
|
Vector3 p0 = transform.xform(rvertices[j * 3 + 0]);
|
|
Vector3 p1 = transform.xform(rvertices[j * 3 + 1]);
|
|
Vector3 p2 = transform.xform(rvertices[j * 3 + 2]);
|
|
|
|
if ((p0 - p1).length_squared() < eps || (p1 - p2).length_squared() < eps || (p2 - p0).length_squared() < eps) {
|
|
continue;
|
|
}
|
|
|
|
indices.push_back(vertex_ofs + j * 3 + 0);
|
|
indices.push_back(vertex_ofs + j * 3 + 1);
|
|
indices.push_back(vertex_ofs + j * 3 + 2);
|
|
}
|
|
|
|
} else {
|
|
for (int j = 0; j < ic / 3; j++) {
|
|
Vector3 p0 = transform.xform(rvertices[rindices[j * 3 + 0]]);
|
|
Vector3 p1 = transform.xform(rvertices[rindices[j * 3 + 1]]);
|
|
Vector3 p2 = transform.xform(rvertices[rindices[j * 3 + 2]]);
|
|
|
|
if ((p0 - p1).length_squared() < eps || (p1 - p2).length_squared() < eps || (p2 - p0).length_squared() < eps) {
|
|
continue;
|
|
}
|
|
|
|
indices.push_back(vertex_ofs + rindices[j * 3 + 0]);
|
|
indices.push_back(vertex_ofs + rindices[j * 3 + 1]);
|
|
indices.push_back(vertex_ofs + rindices[j * 3 + 2]);
|
|
}
|
|
}
|
|
|
|
lightmap_surfaces.push_back(s);
|
|
}
|
|
|
|
//unwrap
|
|
|
|
bool use_cache = true; // Used to request cache generation and to know if cache was used
|
|
uint8_t *gen_cache;
|
|
int gen_cache_size;
|
|
float *gen_uvs;
|
|
int *gen_vertices;
|
|
int *gen_indices;
|
|
int gen_vertex_count;
|
|
int gen_index_count;
|
|
int size_x;
|
|
int size_y;
|
|
|
|
bool ok = array_mesh_lightmap_unwrap_callback(p_texel_size, vertices.ptr(), normals.ptr(), vertices.size() / 3, indices.ptr(), indices.size(), p_src_cache.ptr(), &use_cache, &gen_cache, &gen_cache_size, &gen_uvs, &gen_vertices, &gen_vertex_count, &gen_indices, &gen_index_count, &size_x, &size_y);
|
|
|
|
if (!ok) {
|
|
return ERR_CANT_CREATE;
|
|
}
|
|
|
|
//remove surfaces
|
|
clear();
|
|
|
|
//create surfacetools for each surface..
|
|
LocalVector<Ref<SurfaceTool>> surfaces_tools;
|
|
|
|
for (int i = 0; i < lightmap_surfaces.size(); i++) {
|
|
Ref<SurfaceTool> st;
|
|
st.instantiate();
|
|
st->begin(Mesh::PRIMITIVE_TRIANGLES);
|
|
st->set_material(lightmap_surfaces[i].material);
|
|
st->set_meta("name", lightmap_surfaces[i].name);
|
|
surfaces_tools.push_back(st); //stay there
|
|
}
|
|
|
|
print_verbose("Mesh: Gen indices: " + itos(gen_index_count));
|
|
|
|
//go through all indices
|
|
for (int i = 0; i < gen_index_count; i += 3) {
|
|
ERR_FAIL_INDEX_V(gen_vertices[gen_indices[i + 0]], (int)uv_indices.size(), ERR_BUG);
|
|
ERR_FAIL_INDEX_V(gen_vertices[gen_indices[i + 1]], (int)uv_indices.size(), ERR_BUG);
|
|
ERR_FAIL_INDEX_V(gen_vertices[gen_indices[i + 2]], (int)uv_indices.size(), ERR_BUG);
|
|
|
|
ERR_FAIL_COND_V(uv_indices[gen_vertices[gen_indices[i + 0]]].first != uv_indices[gen_vertices[gen_indices[i + 1]]].first || uv_indices[gen_vertices[gen_indices[i + 0]]].first != uv_indices[gen_vertices[gen_indices[i + 2]]].first, ERR_BUG);
|
|
|
|
int surface = uv_indices[gen_vertices[gen_indices[i + 0]]].first;
|
|
|
|
for (int j = 0; j < 3; j++) {
|
|
SurfaceTool::Vertex v = lightmap_surfaces[surface].vertices[uv_indices[gen_vertices[gen_indices[i + j]]].second];
|
|
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_COLOR) {
|
|
surfaces_tools[surface]->set_color(v.color);
|
|
}
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_TEX_UV) {
|
|
surfaces_tools[surface]->set_uv(v.uv);
|
|
}
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_NORMAL) {
|
|
surfaces_tools[surface]->set_normal(v.normal);
|
|
}
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_TANGENT) {
|
|
Plane t;
|
|
t.normal = v.tangent;
|
|
t.d = v.binormal.dot(v.normal.cross(v.tangent)) < 0 ? -1 : 1;
|
|
surfaces_tools[surface]->set_tangent(t);
|
|
}
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_BONES) {
|
|
surfaces_tools[surface]->set_bones(v.bones);
|
|
}
|
|
if (lightmap_surfaces[surface].format & Mesh::ARRAY_FORMAT_WEIGHTS) {
|
|
surfaces_tools[surface]->set_weights(v.weights);
|
|
}
|
|
|
|
Vector2 uv2(gen_uvs[gen_indices[i + j] * 2 + 0], gen_uvs[gen_indices[i + j] * 2 + 1]);
|
|
surfaces_tools[surface]->set_uv2(uv2);
|
|
|
|
surfaces_tools[surface]->add_vertex(v.vertex);
|
|
}
|
|
}
|
|
|
|
//generate surfaces
|
|
for (unsigned int i = 0; i < surfaces_tools.size(); i++) {
|
|
surfaces_tools[i]->index();
|
|
Array arrays = surfaces_tools[i]->commit_to_arrays();
|
|
add_surface(surfaces_tools[i]->get_primitive(), arrays, Array(), Dictionary(), surfaces_tools[i]->get_material(), surfaces_tools[i]->get_meta("name"));
|
|
}
|
|
|
|
set_lightmap_size_hint(Size2(size_x, size_y));
|
|
|
|
if (gen_cache_size > 0) {
|
|
r_dst_cache.resize(gen_cache_size);
|
|
memcpy(r_dst_cache.ptrw(), gen_cache, gen_cache_size);
|
|
memfree(gen_cache);
|
|
}
|
|
|
|
if (!use_cache) {
|
|
// Cache was not used, free the buffers
|
|
memfree(gen_vertices);
|
|
memfree(gen_indices);
|
|
memfree(gen_uvs);
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
void EditorSceneImporterMesh::set_lightmap_size_hint(const Size2i &p_size) {
|
|
lightmap_size_hint = p_size;
|
|
}
|
|
|
|
Size2i EditorSceneImporterMesh::get_lightmap_size_hint() const {
|
|
return lightmap_size_hint;
|
|
}
|
|
|
|
void EditorSceneImporterMesh::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("add_blend_shape", "name"), &EditorSceneImporterMesh::add_blend_shape);
|
|
ClassDB::bind_method(D_METHOD("get_blend_shape_count"), &EditorSceneImporterMesh::get_blend_shape_count);
|
|
ClassDB::bind_method(D_METHOD("get_blend_shape_name", "blend_shape_idx"), &EditorSceneImporterMesh::get_blend_shape_name);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_blend_shape_mode", "mode"), &EditorSceneImporterMesh::set_blend_shape_mode);
|
|
ClassDB::bind_method(D_METHOD("get_blend_shape_mode"), &EditorSceneImporterMesh::get_blend_shape_mode);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_surface", "primitive", "arrays", "blend_shapes", "lods", "material", "name"), &EditorSceneImporterMesh::add_surface, DEFVAL(Array()), DEFVAL(Dictionary()), DEFVAL(Ref<Material>()), DEFVAL(String()));
|
|
|
|
ClassDB::bind_method(D_METHOD("get_surface_count"), &EditorSceneImporterMesh::get_surface_count);
|
|
ClassDB::bind_method(D_METHOD("get_surface_primitive_type", "surface_idx"), &EditorSceneImporterMesh::get_surface_primitive_type);
|
|
ClassDB::bind_method(D_METHOD("get_surface_name", "surface_idx"), &EditorSceneImporterMesh::get_surface_name);
|
|
ClassDB::bind_method(D_METHOD("get_surface_arrays", "surface_idx"), &EditorSceneImporterMesh::get_surface_arrays);
|
|
ClassDB::bind_method(D_METHOD("get_surface_blend_shape_arrays", "surface_idx", "blend_shape_idx"), &EditorSceneImporterMesh::get_surface_blend_shape_arrays);
|
|
ClassDB::bind_method(D_METHOD("get_surface_lod_count", "surface_idx"), &EditorSceneImporterMesh::get_surface_lod_count);
|
|
ClassDB::bind_method(D_METHOD("get_surface_lod_size", "surface_idx", "lod_idx"), &EditorSceneImporterMesh::get_surface_lod_size);
|
|
ClassDB::bind_method(D_METHOD("get_surface_lod_indices", "surface_idx", "lod_idx"), &EditorSceneImporterMesh::get_surface_lod_indices);
|
|
ClassDB::bind_method(D_METHOD("get_surface_material", "surface_idx"), &EditorSceneImporterMesh::get_surface_material);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_surface_name", "surface_idx", "name"), &EditorSceneImporterMesh::set_surface_name);
|
|
ClassDB::bind_method(D_METHOD("set_surface_material", "surface_idx", "material"), &EditorSceneImporterMesh::set_surface_material);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_mesh", "base_mesh"), &EditorSceneImporterMesh::get_mesh, DEFVAL(Ref<ArrayMesh>()));
|
|
ClassDB::bind_method(D_METHOD("clear"), &EditorSceneImporterMesh::clear);
|
|
|
|
ClassDB::bind_method(D_METHOD("_set_data", "data"), &EditorSceneImporterMesh::_set_data);
|
|
ClassDB::bind_method(D_METHOD("_get_data"), &EditorSceneImporterMesh::_get_data);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_lightmap_size_hint", "size"), &EditorSceneImporterMesh::set_lightmap_size_hint);
|
|
ClassDB::bind_method(D_METHOD("get_lightmap_size_hint"), &EditorSceneImporterMesh::get_lightmap_size_hint);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "_set_data", "_get_data");
|
|
}
|