1392 lines
42 KiB
C++
1392 lines
42 KiB
C++
/**************************************************************************/
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/* surface_tool.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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 "surface_tool.h"
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#define EQ_VERTEX_DIST 0.00001
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SurfaceTool::OptimizeVertexCacheFunc SurfaceTool::optimize_vertex_cache_func = nullptr;
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SurfaceTool::SimplifyFunc SurfaceTool::simplify_func = nullptr;
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SurfaceTool::SimplifyWithAttribFunc SurfaceTool::simplify_with_attrib_func = nullptr;
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SurfaceTool::SimplifyScaleFunc SurfaceTool::simplify_scale_func = nullptr;
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SurfaceTool::SimplifySloppyFunc SurfaceTool::simplify_sloppy_func = nullptr;
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SurfaceTool::GenerateRemapFunc SurfaceTool::generate_remap_func = nullptr;
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SurfaceTool::RemapVertexFunc SurfaceTool::remap_vertex_func = nullptr;
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SurfaceTool::RemapIndexFunc SurfaceTool::remap_index_func = nullptr;
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void SurfaceTool::strip_mesh_arrays(PackedVector3Array &r_vertices, PackedInt32Array &r_indices) {
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ERR_FAIL_COND_MSG(!generate_remap_func || !remap_vertex_func || !remap_index_func, "Meshoptimizer library is not initialized.");
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Vector<uint32_t> remap;
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remap.resize(r_vertices.size());
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uint32_t new_vertex_count = generate_remap_func(remap.ptrw(), (unsigned int *)r_indices.ptr(), r_indices.size(), r_vertices.ptr(), r_vertices.size(), sizeof(Vector3));
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remap_vertex_func(r_vertices.ptrw(), r_vertices.ptr(), r_vertices.size(), sizeof(Vector3), remap.ptr());
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r_vertices.resize(new_vertex_count);
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remap_index_func((unsigned int *)r_indices.ptrw(), (unsigned int *)r_indices.ptr(), r_indices.size(), remap.ptr());
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HashMap<const int *, bool, TriangleHasher, TriangleHasher> found_triangles;
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int *idx_ptr = r_indices.ptrw();
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int filtered_indices_count = 0;
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for (int i = 0; i < r_indices.size() / 3; i++) {
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const int *tri = idx_ptr + (i * 3);
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if (tri[0] == tri[1] || tri[1] == tri[2] || tri[2] == tri[0]) {
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continue;
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}
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if (found_triangles.has(tri)) {
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continue;
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}
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if (i != filtered_indices_count) {
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memcpy(idx_ptr + (filtered_indices_count * 3), tri, sizeof(int) * 3);
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}
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found_triangles[tri] = true;
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filtered_indices_count++;
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}
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r_indices.resize(filtered_indices_count * 3);
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}
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bool SurfaceTool::Vertex::operator==(const Vertex &p_vertex) const {
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if (vertex != p_vertex.vertex) {
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return false;
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}
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if (uv != p_vertex.uv) {
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return false;
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}
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if (uv2 != p_vertex.uv2) {
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return false;
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}
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if (normal != p_vertex.normal) {
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return false;
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}
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if (binormal != p_vertex.binormal) {
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return false;
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}
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if (color != p_vertex.color) {
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return false;
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}
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if (bones.size() != p_vertex.bones.size()) {
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return false;
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}
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for (int i = 0; i < bones.size(); i++) {
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if (bones[i] != p_vertex.bones[i]) {
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return false;
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}
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}
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for (int i = 0; i < weights.size(); i++) {
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if (weights[i] != p_vertex.weights[i]) {
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return false;
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}
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}
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for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
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if (custom[i] != p_vertex.custom[i]) {
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return false;
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}
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}
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if (smooth_group != p_vertex.smooth_group) {
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return false;
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}
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return true;
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}
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uint32_t SurfaceTool::VertexHasher::hash(const Vertex &p_vtx) {
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uint32_t h = hash_djb2_buffer((const uint8_t *)&p_vtx.vertex, sizeof(real_t) * 3);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.normal, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.binormal, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.tangent, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.uv, sizeof(real_t) * 2, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.uv2, sizeof(real_t) * 2, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.color, sizeof(real_t) * 4, h);
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h = hash_djb2_buffer((const uint8_t *)p_vtx.bones.ptr(), p_vtx.bones.size() * sizeof(int), h);
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h = hash_djb2_buffer((const uint8_t *)p_vtx.weights.ptr(), p_vtx.weights.size() * sizeof(float), h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.custom[0], sizeof(Color) * RS::ARRAY_CUSTOM_COUNT, h);
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h = hash_murmur3_one_32(p_vtx.smooth_group, h);
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h = hash_fmix32(h);
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return h;
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}
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bool SurfaceTool::SmoothGroupVertex::operator==(const SmoothGroupVertex &p_vertex) const {
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if (vertex != p_vertex.vertex) {
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return false;
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}
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if (smooth_group != p_vertex.smooth_group) {
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return false;
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}
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return true;
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}
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uint32_t SurfaceTool::SmoothGroupVertexHasher::hash(const SmoothGroupVertex &p_vtx) {
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uint32_t h = hash_djb2_buffer((const uint8_t *)&p_vtx.vertex, sizeof(real_t) * 3);
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h = hash_murmur3_one_32(p_vtx.smooth_group, h);
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h = hash_fmix32(h);
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return h;
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}
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uint32_t SurfaceTool::TriangleHasher::hash(const int *p_triangle) {
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int t0 = p_triangle[0];
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int t1 = p_triangle[1];
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int t2 = p_triangle[2];
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if (t0 > t1) {
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SWAP(t0, t1);
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}
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if (t1 > t2) {
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SWAP(t1, t2);
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}
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if (t0 > t1) {
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SWAP(t0, t1);
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}
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return (t0 * 73856093) ^ (t1 * 19349663) ^ (t2 * 83492791);
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}
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bool SurfaceTool::TriangleHasher::compare(const int *p_lhs, const int *p_rhs) {
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int r0 = p_rhs[0];
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int r1 = p_rhs[1];
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int r2 = p_rhs[2];
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if (r0 > r1) {
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SWAP(r0, r1);
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}
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if (r1 > r2) {
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SWAP(r1, r2);
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}
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if (r0 > r1) {
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SWAP(r0, r1);
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}
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int l0 = p_lhs[0];
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int l1 = p_lhs[1];
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int l2 = p_lhs[2];
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if (l0 > l1) {
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SWAP(l0, l1);
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}
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if (l1 > l2) {
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SWAP(l1, l2);
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}
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if (l0 > l1) {
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SWAP(l0, l1);
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}
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return l0 == r0 && l1 == r1 && l2 == r2;
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}
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void SurfaceTool::begin(Mesh::PrimitiveType p_primitive) {
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clear();
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primitive = p_primitive;
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begun = true;
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first = true;
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}
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void SurfaceTool::add_vertex(const Vector3 &p_vertex) {
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ERR_FAIL_COND(!begun);
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Vertex vtx;
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vtx.vertex = p_vertex;
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vtx.color = last_color;
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vtx.normal = last_normal;
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vtx.uv = last_uv;
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vtx.uv2 = last_uv2;
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vtx.weights = last_weights;
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vtx.bones = last_bones;
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vtx.tangent = last_tangent.normal;
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vtx.binormal = last_normal.cross(last_tangent.normal).normalized() * last_tangent.d;
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vtx.smooth_group = last_smooth_group;
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for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
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vtx.custom[i] = last_custom[i];
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}
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const int expected_vertices = skin_weights == SKIN_8_WEIGHTS ? 8 : 4;
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if ((format & Mesh::ARRAY_FORMAT_WEIGHTS || format & Mesh::ARRAY_FORMAT_BONES) && (vtx.weights.size() != expected_vertices || vtx.bones.size() != expected_vertices)) {
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//ensure vertices are the expected amount
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ERR_FAIL_COND(vtx.weights.size() != vtx.bones.size());
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if (vtx.weights.size() < expected_vertices) {
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//less than required, fill
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for (int i = vtx.weights.size(); i < expected_vertices; i++) {
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vtx.weights.push_back(0);
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vtx.bones.push_back(0);
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}
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} else if (vtx.weights.size() > expected_vertices) {
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//more than required, sort, cap and normalize.
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Vector<WeightSort> weights;
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for (int i = 0; i < vtx.weights.size(); i++) {
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WeightSort ws;
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ws.index = vtx.bones[i];
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ws.weight = vtx.weights[i];
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weights.push_back(ws);
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}
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//sort
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weights.sort();
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//cap
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weights.resize(expected_vertices);
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//renormalize
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float total = 0.0;
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for (int i = 0; i < expected_vertices; i++) {
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total += weights[i].weight;
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}
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vtx.weights.resize(expected_vertices);
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vtx.bones.resize(expected_vertices);
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for (int i = 0; i < expected_vertices; i++) {
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if (total > 0) {
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vtx.weights.write[i] = weights[i].weight / total;
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} else {
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vtx.weights.write[i] = 0;
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}
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vtx.bones.write[i] = weights[i].index;
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}
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}
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}
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vertex_array.push_back(vtx);
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first = false;
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format |= Mesh::ARRAY_FORMAT_VERTEX;
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}
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void SurfaceTool::set_color(Color p_color) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_COLOR));
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format |= Mesh::ARRAY_FORMAT_COLOR;
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last_color = p_color;
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}
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void SurfaceTool::set_normal(const Vector3 &p_normal) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_NORMAL));
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format |= Mesh::ARRAY_FORMAT_NORMAL;
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last_normal = p_normal;
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}
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void SurfaceTool::set_tangent(const Plane &p_tangent) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TANGENT));
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format |= Mesh::ARRAY_FORMAT_TANGENT;
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last_tangent = p_tangent;
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}
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void SurfaceTool::set_uv(const Vector2 &p_uv) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TEX_UV));
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format |= Mesh::ARRAY_FORMAT_TEX_UV;
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last_uv = p_uv;
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}
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void SurfaceTool::set_uv2(const Vector2 &p_uv2) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TEX_UV2));
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format |= Mesh::ARRAY_FORMAT_TEX_UV2;
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last_uv2 = p_uv2;
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}
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void SurfaceTool::set_custom(int p_channel_index, const Color &p_custom) {
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ERR_FAIL_INDEX(p_channel_index, RS::ARRAY_CUSTOM_COUNT);
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(last_custom_format[p_channel_index] == CUSTOM_MAX);
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static const uint32_t mask[RS::ARRAY_CUSTOM_COUNT] = { Mesh::ARRAY_FORMAT_CUSTOM0, Mesh::ARRAY_FORMAT_CUSTOM1, Mesh::ARRAY_FORMAT_CUSTOM2, Mesh::ARRAY_FORMAT_CUSTOM3 };
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ERR_FAIL_COND(!first && !(format & mask[p_channel_index]));
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if (first) {
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format |= mask[p_channel_index];
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}
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last_custom[p_channel_index] = p_custom;
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}
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void SurfaceTool::set_bones(const Vector<int> &p_bones) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_BONES));
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format |= Mesh::ARRAY_FORMAT_BONES;
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if (skin_weights == SKIN_8_WEIGHTS) {
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format |= Mesh::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
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}
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last_bones = p_bones;
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}
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void SurfaceTool::set_weights(const Vector<float> &p_weights) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_WEIGHTS));
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format |= Mesh::ARRAY_FORMAT_WEIGHTS;
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if (skin_weights == SKIN_8_WEIGHTS) {
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format |= Mesh::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
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}
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last_weights = p_weights;
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}
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void SurfaceTool::set_smooth_group(uint32_t p_group) {
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last_smooth_group = p_group;
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}
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void SurfaceTool::add_triangle_fan(const Vector<Vector3> &p_vertices, const Vector<Vector2> &p_uvs, const Vector<Color> &p_colors, const Vector<Vector2> &p_uv2s, const Vector<Vector3> &p_normals, const Vector<Plane> &p_tangents) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
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ERR_FAIL_COND(p_vertices.size() < 3);
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#define ADD_POINT(n) \
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{ \
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if (p_colors.size() > n) \
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set_color(p_colors[n]); \
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if (p_uvs.size() > n) \
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set_uv(p_uvs[n]); \
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if (p_uv2s.size() > n) \
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set_uv2(p_uv2s[n]); \
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if (p_normals.size() > n) \
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set_normal(p_normals[n]); \
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if (p_tangents.size() > n) \
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set_tangent(p_tangents[n]); \
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add_vertex(p_vertices[n]); \
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}
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for (int i = 0; i < p_vertices.size() - 2; i++) {
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ADD_POINT(0);
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ADD_POINT(i + 1);
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ADD_POINT(i + 2);
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}
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#undef ADD_POINT
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}
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void SurfaceTool::add_index(int p_index) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(p_index < 0);
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format |= Mesh::ARRAY_FORMAT_INDEX;
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index_array.push_back(p_index);
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}
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Array SurfaceTool::commit_to_arrays() {
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int varr_len = vertex_array.size();
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Array a;
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a.resize(Mesh::ARRAY_MAX);
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for (int i = 0; i < Mesh::ARRAY_MAX; i++) {
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if (!(format & (1 << i))) {
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continue; //not in format
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}
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switch (i) {
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case Mesh::ARRAY_VERTEX:
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case Mesh::ARRAY_NORMAL: {
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Vector<Vector3> array;
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array.resize(varr_len);
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Vector3 *w = array.ptrw();
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for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
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const Vertex &v = vertex_array[idx];
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switch (i) {
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case Mesh::ARRAY_VERTEX: {
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w[idx] = v.vertex;
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} break;
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case Mesh::ARRAY_NORMAL: {
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w[idx] = v.normal;
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} break;
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}
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}
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a[i] = array;
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} break;
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case Mesh::ARRAY_TEX_UV:
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case Mesh::ARRAY_TEX_UV2: {
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Vector<Vector2> array;
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array.resize(varr_len);
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Vector2 *w = array.ptrw();
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for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
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const Vertex &v = vertex_array[idx];
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switch (i) {
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case Mesh::ARRAY_TEX_UV: {
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w[idx] = v.uv;
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} break;
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case Mesh::ARRAY_TEX_UV2: {
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w[idx] = v.uv2;
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} break;
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}
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}
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a[i] = array;
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} break;
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case Mesh::ARRAY_TANGENT: {
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Vector<float> array;
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array.resize(varr_len * 4);
|
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float *w = array.ptrw();
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|
|
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for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
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const Vertex &v = vertex_array[idx];
|
|
|
|
w[idx * 4 + 0] = v.tangent.x;
|
|
w[idx * 4 + 1] = v.tangent.y;
|
|
w[idx * 4 + 2] = v.tangent.z;
|
|
|
|
//float d = v.tangent.dot(v.binormal,v.normal);
|
|
float d = v.binormal.dot(v.normal.cross(v.tangent));
|
|
w[idx * 4 + 3] = d < 0 ? -1 : 1;
|
|
}
|
|
|
|
a[i] = array;
|
|
|
|
} break;
|
|
case Mesh::ARRAY_COLOR: {
|
|
Vector<Color> array;
|
|
array.resize(varr_len);
|
|
Color *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
w[idx] = v.color;
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case Mesh::ARRAY_CUSTOM0:
|
|
case Mesh::ARRAY_CUSTOM1:
|
|
case Mesh::ARRAY_CUSTOM2:
|
|
case Mesh::ARRAY_CUSTOM3: {
|
|
int fmt = i - Mesh::ARRAY_CUSTOM0;
|
|
switch (last_custom_format[fmt]) {
|
|
case CUSTOM_RGBA8_UNORM: {
|
|
Vector<uint8_t> array;
|
|
array.resize(varr_len * 4);
|
|
uint8_t *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 4 + 0] = CLAMP(int32_t(c.r * 255.0), 0, 255);
|
|
w[idx * 4 + 1] = CLAMP(int32_t(c.g * 255.0), 0, 255);
|
|
w[idx * 4 + 2] = CLAMP(int32_t(c.b * 255.0), 0, 255);
|
|
w[idx * 4 + 3] = CLAMP(int32_t(c.a * 255.0), 0, 255);
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RGBA8_SNORM: {
|
|
Vector<uint8_t> array;
|
|
array.resize(varr_len * 4);
|
|
uint8_t *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 4 + 0] = uint8_t(int8_t(CLAMP(int32_t(c.r * 127.0), -128, 127)));
|
|
w[idx * 4 + 1] = uint8_t(int8_t(CLAMP(int32_t(c.g * 127.0), -128, 127)));
|
|
w[idx * 4 + 2] = uint8_t(int8_t(CLAMP(int32_t(c.b * 127.0), -128, 127)));
|
|
w[idx * 4 + 3] = uint8_t(int8_t(CLAMP(int32_t(c.a * 127.0), -128, 127)));
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RG_HALF: {
|
|
Vector<uint8_t> array;
|
|
array.resize(varr_len * 4);
|
|
uint16_t *w = (uint16_t *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 2 + 0] = Math::make_half_float(c.r);
|
|
w[idx * 2 + 1] = Math::make_half_float(c.g);
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RGBA_HALF: {
|
|
Vector<uint8_t> array;
|
|
array.resize(varr_len * 8);
|
|
uint16_t *w = (uint16_t *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 4 + 0] = Math::make_half_float(c.r);
|
|
w[idx * 4 + 1] = Math::make_half_float(c.g);
|
|
w[idx * 4 + 2] = Math::make_half_float(c.b);
|
|
w[idx * 4 + 3] = Math::make_half_float(c.a);
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_R_FLOAT: {
|
|
Vector<float> array;
|
|
array.resize(varr_len);
|
|
float *w = (float *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx] = c.r;
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RG_FLOAT: {
|
|
Vector<float> array;
|
|
array.resize(varr_len * 2);
|
|
float *w = (float *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 2 + 0] = c.r;
|
|
w[idx * 2 + 1] = c.g;
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RGB_FLOAT: {
|
|
Vector<float> array;
|
|
array.resize(varr_len * 3);
|
|
float *w = (float *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 3 + 0] = c.r;
|
|
w[idx * 3 + 1] = c.g;
|
|
w[idx * 3 + 2] = c.b;
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
case CUSTOM_RGBA_FLOAT: {
|
|
Vector<float> array;
|
|
array.resize(varr_len * 4);
|
|
float *w = (float *)array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
const Color &c = v.custom[fmt];
|
|
w[idx * 4 + 0] = c.r;
|
|
w[idx * 4 + 1] = c.g;
|
|
w[idx * 4 + 2] = c.b;
|
|
w[idx * 4 + 3] = c.a;
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
default: {
|
|
} //unreachable but compiler warning anyway
|
|
}
|
|
} break;
|
|
case Mesh::ARRAY_BONES: {
|
|
int count = skin_weights == SKIN_8_WEIGHTS ? 8 : 4;
|
|
Vector<int> array;
|
|
array.resize(varr_len * count);
|
|
array.fill(0);
|
|
int *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
if (v.bones.size() != count) {
|
|
ERR_PRINT_ONCE(vformat("Invalid bones size %d vs count %d", v.bones.size(), count));
|
|
continue;
|
|
}
|
|
|
|
for (int j = 0; j < count; j++) {
|
|
w[idx * count + j] = v.bones[j];
|
|
}
|
|
}
|
|
|
|
a[i] = array;
|
|
|
|
} break;
|
|
case Mesh::ARRAY_WEIGHTS: {
|
|
Vector<float> array;
|
|
int count = skin_weights == SKIN_8_WEIGHTS ? 8 : 4;
|
|
|
|
array.resize(varr_len * count);
|
|
array.fill(0.0f);
|
|
float *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < vertex_array.size(); idx++) {
|
|
const Vertex &v = vertex_array[idx];
|
|
|
|
if (v.weights.size() != count) {
|
|
ERR_PRINT_ONCE(vformat("Invalid weight size %d vs count %d", v.weights.size(), count));
|
|
continue;
|
|
}
|
|
|
|
for (int j = 0; j < count; j++) {
|
|
w[idx * count + j] = v.weights[j];
|
|
}
|
|
}
|
|
|
|
a[i] = array;
|
|
|
|
} break;
|
|
case Mesh::ARRAY_INDEX: {
|
|
ERR_CONTINUE(index_array.size() == 0);
|
|
|
|
Vector<int> array;
|
|
array.resize(index_array.size());
|
|
int *w = array.ptrw();
|
|
|
|
for (uint32_t idx = 0; idx < index_array.size(); idx++) {
|
|
w[idx] = index_array[idx];
|
|
}
|
|
|
|
a[i] = array;
|
|
} break;
|
|
|
|
default: {
|
|
}
|
|
}
|
|
}
|
|
|
|
return a;
|
|
}
|
|
|
|
Ref<ArrayMesh> SurfaceTool::commit(const Ref<ArrayMesh> &p_existing, uint32_t p_compress_flags) {
|
|
Ref<ArrayMesh> mesh;
|
|
if (p_existing.is_valid()) {
|
|
mesh = p_existing;
|
|
} else {
|
|
mesh.instantiate();
|
|
}
|
|
|
|
int varr_len = vertex_array.size();
|
|
|
|
if (varr_len == 0) {
|
|
return mesh;
|
|
}
|
|
|
|
int surface = mesh->get_surface_count();
|
|
|
|
Array a = commit_to_arrays();
|
|
|
|
uint32_t compress_flags = (p_compress_flags >> RS::ARRAY_COMPRESS_FLAGS_BASE) << RS::ARRAY_COMPRESS_FLAGS_BASE;
|
|
static const uint32_t shift[RS::ARRAY_CUSTOM_COUNT] = { Mesh::ARRAY_FORMAT_CUSTOM0_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM1_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM2_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM3_SHIFT };
|
|
for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
|
|
if (last_custom_format[i] != CUSTOM_MAX) {
|
|
compress_flags |= last_custom_format[i] << shift[i];
|
|
}
|
|
}
|
|
|
|
mesh->add_surface_from_arrays(primitive, a, Array(), Dictionary(), compress_flags);
|
|
|
|
if (material.is_valid()) {
|
|
mesh->surface_set_material(surface, material);
|
|
}
|
|
|
|
return mesh;
|
|
}
|
|
|
|
void SurfaceTool::index() {
|
|
if (index_array.size()) {
|
|
return; //already indexed
|
|
}
|
|
|
|
HashMap<Vertex, int, VertexHasher> indices;
|
|
LocalVector<Vertex> old_vertex_array = vertex_array;
|
|
vertex_array.clear();
|
|
|
|
for (const Vertex &vertex : old_vertex_array) {
|
|
int *idxptr = indices.getptr(vertex);
|
|
int idx;
|
|
if (!idxptr) {
|
|
idx = indices.size();
|
|
vertex_array.push_back(vertex);
|
|
indices[vertex] = idx;
|
|
} else {
|
|
idx = *idxptr;
|
|
}
|
|
|
|
index_array.push_back(idx);
|
|
}
|
|
|
|
format |= Mesh::ARRAY_FORMAT_INDEX;
|
|
}
|
|
|
|
void SurfaceTool::deindex() {
|
|
if (index_array.size() == 0) {
|
|
return; //nothing to deindex
|
|
}
|
|
|
|
LocalVector<Vertex> old_vertex_array = vertex_array;
|
|
vertex_array.clear();
|
|
for (const int &index : index_array) {
|
|
ERR_FAIL_COND(uint32_t(index) >= old_vertex_array.size());
|
|
vertex_array.push_back(old_vertex_array[index]);
|
|
}
|
|
format &= ~Mesh::ARRAY_FORMAT_INDEX;
|
|
index_array.clear();
|
|
}
|
|
|
|
void SurfaceTool::_create_list(const Ref<Mesh> &p_existing, int p_surface, LocalVector<Vertex> *r_vertex, LocalVector<int> *r_index, uint32_t &lformat) {
|
|
ERR_FAIL_NULL_MSG(p_existing, "First argument in SurfaceTool::_create_list() must be a valid object of type Mesh");
|
|
|
|
Array arr = p_existing->surface_get_arrays(p_surface);
|
|
ERR_FAIL_COND(arr.size() != RS::ARRAY_MAX);
|
|
_create_list_from_arrays(arr, r_vertex, r_index, lformat);
|
|
}
|
|
|
|
static const uint32_t custom_mask[RS::ARRAY_CUSTOM_COUNT] = { Mesh::ARRAY_FORMAT_CUSTOM0, Mesh::ARRAY_FORMAT_CUSTOM1, Mesh::ARRAY_FORMAT_CUSTOM2, Mesh::ARRAY_FORMAT_CUSTOM3 };
|
|
static const uint32_t custom_shift[RS::ARRAY_CUSTOM_COUNT] = { Mesh::ARRAY_FORMAT_CUSTOM0_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM1_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM2_SHIFT, Mesh::ARRAY_FORMAT_CUSTOM3_SHIFT };
|
|
|
|
void SurfaceTool::create_vertex_array_from_triangle_arrays(const Array &p_arrays, LocalVector<SurfaceTool::Vertex> &ret, uint32_t *r_format) {
|
|
ret.clear();
|
|
|
|
Vector<Vector3> varr = p_arrays[RS::ARRAY_VERTEX];
|
|
Vector<Vector3> narr = p_arrays[RS::ARRAY_NORMAL];
|
|
Vector<float> tarr = p_arrays[RS::ARRAY_TANGENT];
|
|
Vector<Color> carr = p_arrays[RS::ARRAY_COLOR];
|
|
Vector<Vector2> uvarr = p_arrays[RS::ARRAY_TEX_UV];
|
|
Vector<Vector2> uv2arr = p_arrays[RS::ARRAY_TEX_UV2];
|
|
Vector<int> barr = p_arrays[RS::ARRAY_BONES];
|
|
Vector<float> warr = p_arrays[RS::ARRAY_WEIGHTS];
|
|
Vector<float> custom_float[RS::ARRAY_CUSTOM_COUNT];
|
|
|
|
int vc = varr.size();
|
|
if (vc == 0) {
|
|
if (r_format) {
|
|
*r_format = 0;
|
|
}
|
|
return;
|
|
}
|
|
|
|
int lformat = 0;
|
|
if (varr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_VERTEX;
|
|
}
|
|
if (narr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_NORMAL;
|
|
}
|
|
if (tarr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_TANGENT;
|
|
}
|
|
if (carr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_COLOR;
|
|
}
|
|
if (uvarr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_TEX_UV;
|
|
}
|
|
if (uv2arr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_TEX_UV2;
|
|
}
|
|
int wcount = 0;
|
|
if (barr.size() && warr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_BONES;
|
|
lformat |= RS::ARRAY_FORMAT_WEIGHTS;
|
|
|
|
wcount = barr.size() / varr.size();
|
|
if (wcount == 8) {
|
|
lformat |= RS::ARRAY_FLAG_USE_8_BONE_WEIGHTS;
|
|
}
|
|
}
|
|
|
|
if (warr.size()) {
|
|
lformat |= RS::ARRAY_FORMAT_WEIGHTS;
|
|
}
|
|
|
|
for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
|
|
ERR_CONTINUE_MSG(p_arrays[RS::ARRAY_CUSTOM0 + i].get_type() == Variant::PACKED_BYTE_ARRAY, "Extracting Byte/Half formats is not supported");
|
|
if (p_arrays[RS::ARRAY_CUSTOM0 + i].get_type() == Variant::PACKED_FLOAT32_ARRAY) {
|
|
lformat |= custom_mask[i];
|
|
custom_float[i] = p_arrays[RS::ARRAY_CUSTOM0 + i];
|
|
int fmt = custom_float[i].size() / varr.size();
|
|
if (fmt == 1) {
|
|
lformat |= CUSTOM_R_FLOAT << custom_shift[i];
|
|
} else if (fmt == 2) {
|
|
lformat |= CUSTOM_RG_FLOAT << custom_shift[i];
|
|
} else if (fmt == 3) {
|
|
lformat |= CUSTOM_RGB_FLOAT << custom_shift[i];
|
|
} else if (fmt == 4) {
|
|
lformat |= CUSTOM_RGBA_FLOAT << custom_shift[i];
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int i = 0; i < vc; i++) {
|
|
Vertex v;
|
|
if (lformat & RS::ARRAY_FORMAT_VERTEX) {
|
|
v.vertex = varr[i];
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_NORMAL) {
|
|
v.normal = narr[i];
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_TANGENT) {
|
|
Plane p(tarr[i * 4 + 0], tarr[i * 4 + 1], tarr[i * 4 + 2], tarr[i * 4 + 3]);
|
|
v.tangent = p.normal;
|
|
v.binormal = p.normal.cross(v.tangent).normalized() * p.d;
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_COLOR) {
|
|
v.color = carr[i];
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_TEX_UV) {
|
|
v.uv = uvarr[i];
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_TEX_UV2) {
|
|
v.uv2 = uv2arr[i];
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_BONES) {
|
|
Vector<int> b;
|
|
b.resize(wcount);
|
|
for (int j = 0; j < wcount; j++) {
|
|
b.write[j] = barr[i * wcount + j];
|
|
}
|
|
v.bones = b;
|
|
}
|
|
if (lformat & RS::ARRAY_FORMAT_WEIGHTS) {
|
|
Vector<float> w;
|
|
w.resize(wcount);
|
|
for (int j = 0; j < wcount; j++) {
|
|
w.write[j] = warr[i * wcount + j];
|
|
}
|
|
v.weights = w;
|
|
}
|
|
|
|
for (int j = 0; j < RS::ARRAY_CUSTOM_COUNT; j++) {
|
|
if (lformat & custom_mask[j]) {
|
|
int cc = custom_float[j].size() / varr.size();
|
|
for (int k = 0; k < cc; k++) {
|
|
v.custom[j][k] = custom_float[j][i * cc + k];
|
|
}
|
|
}
|
|
}
|
|
|
|
ret.push_back(v);
|
|
}
|
|
|
|
if (r_format) {
|
|
*r_format = lformat;
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::_create_list_from_arrays(Array arr, LocalVector<Vertex> *r_vertex, LocalVector<int> *r_index, uint32_t &lformat) {
|
|
create_vertex_array_from_triangle_arrays(arr, *r_vertex, &lformat);
|
|
ERR_FAIL_COND(r_vertex->size() == 0);
|
|
|
|
//indices
|
|
r_index->clear();
|
|
|
|
Vector<int> idx = arr[RS::ARRAY_INDEX];
|
|
int is = idx.size();
|
|
if (is) {
|
|
lformat |= RS::ARRAY_FORMAT_INDEX;
|
|
const int *iarr = idx.ptr();
|
|
for (int i = 0; i < is; i++) {
|
|
r_index->push_back(iarr[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::create_from_triangle_arrays(const Array &p_arrays) {
|
|
clear();
|
|
primitive = Mesh::PRIMITIVE_TRIANGLES;
|
|
_create_list_from_arrays(p_arrays, &vertex_array, &index_array, format);
|
|
|
|
for (int j = 0; j < RS::ARRAY_CUSTOM_COUNT; j++) {
|
|
if (format & custom_mask[j]) {
|
|
last_custom_format[j] = (CustomFormat)((format >> custom_shift[j]) & RS::ARRAY_FORMAT_CUSTOM_MASK);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::create_from(const Ref<Mesh> &p_existing, int p_surface) {
|
|
ERR_FAIL_NULL_MSG(p_existing, "First argument in SurfaceTool::create_from() must be a valid object of type Mesh");
|
|
|
|
clear();
|
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
|
_create_list(p_existing, p_surface, &vertex_array, &index_array, format);
|
|
material = p_existing->surface_get_material(p_surface);
|
|
|
|
for (int j = 0; j < RS::ARRAY_CUSTOM_COUNT; j++) {
|
|
if (format & custom_mask[j]) {
|
|
last_custom_format[j] = (CustomFormat)((format >> custom_shift[j]) & RS::ARRAY_FORMAT_CUSTOM_MASK);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::create_from_blend_shape(const Ref<Mesh> &p_existing, int p_surface, const String &p_blend_shape_name) {
|
|
ERR_FAIL_NULL_MSG(p_existing, "First argument in SurfaceTool::create_from_blend_shape() must be a valid object of type Mesh");
|
|
|
|
clear();
|
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
|
Array arr = p_existing->surface_get_blend_shape_arrays(p_surface);
|
|
Array blend_shape_names;
|
|
int32_t shape_idx = -1;
|
|
for (int32_t i = 0; i < p_existing->get_blend_shape_count(); i++) {
|
|
String name = p_existing->get_blend_shape_name(i);
|
|
if (name == p_blend_shape_name) {
|
|
shape_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
ERR_FAIL_COND(shape_idx == -1);
|
|
ERR_FAIL_COND(shape_idx >= arr.size());
|
|
Array blendshape_mesh_arrays = arr[shape_idx];
|
|
ERR_FAIL_COND(blendshape_mesh_arrays.size() != RS::ARRAY_MAX);
|
|
|
|
Array source_mesh_arrays = p_existing->surface_get_arrays(p_surface);
|
|
ERR_FAIL_COND(source_mesh_arrays.size() != RS::ARRAY_MAX);
|
|
|
|
// Copy BlendShape vertex data over while keeping e.g. bones, weights, index from existing mesh intact.
|
|
source_mesh_arrays[RS::ARRAY_VERTEX] = blendshape_mesh_arrays[RS::ARRAY_VERTEX];
|
|
source_mesh_arrays[RS::ARRAY_NORMAL] = blendshape_mesh_arrays[RS::ARRAY_NORMAL];
|
|
source_mesh_arrays[RS::ARRAY_TANGENT] = blendshape_mesh_arrays[RS::ARRAY_TANGENT];
|
|
|
|
_create_list_from_arrays(source_mesh_arrays, &vertex_array, &index_array, format);
|
|
|
|
material = p_existing->surface_get_material(p_surface);
|
|
format = p_existing->surface_get_format(p_surface);
|
|
|
|
for (int j = 0; j < RS::ARRAY_CUSTOM_COUNT; j++) {
|
|
if (format & custom_mask[j]) {
|
|
last_custom_format[j] = (CustomFormat)((format >> custom_shift[j]) & RS::ARRAY_FORMAT_CUSTOM_MASK);
|
|
}
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::append_from(const Ref<Mesh> &p_existing, int p_surface, const Transform3D &p_xform) {
|
|
ERR_FAIL_NULL_MSG(p_existing, "First argument in SurfaceTool::append_from() must be a valid object of type Mesh");
|
|
|
|
if (vertex_array.size() == 0) {
|
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
|
format = 0;
|
|
}
|
|
|
|
uint32_t nformat = 0;
|
|
LocalVector<Vertex> nvertices;
|
|
LocalVector<int> nindices;
|
|
_create_list(p_existing, p_surface, &nvertices, &nindices, nformat);
|
|
format |= nformat;
|
|
|
|
for (int j = 0; j < RS::ARRAY_CUSTOM_COUNT; j++) {
|
|
if (format & custom_mask[j]) {
|
|
CustomFormat new_format = (CustomFormat)((format >> custom_shift[j]) & RS::ARRAY_FORMAT_CUSTOM_MASK);
|
|
last_custom_format[j] = new_format;
|
|
}
|
|
}
|
|
int vfrom = vertex_array.size();
|
|
|
|
for (Vertex &v : nvertices) {
|
|
v.vertex = p_xform.xform(v.vertex);
|
|
if (nformat & RS::ARRAY_FORMAT_NORMAL) {
|
|
v.normal = p_xform.basis.xform(v.normal);
|
|
}
|
|
if (nformat & RS::ARRAY_FORMAT_TANGENT) {
|
|
v.tangent = p_xform.basis.xform(v.tangent);
|
|
v.binormal = p_xform.basis.xform(v.binormal);
|
|
}
|
|
|
|
vertex_array.push_back(v);
|
|
}
|
|
|
|
for (const int &index : nindices) {
|
|
int dst_index = index + vfrom;
|
|
index_array.push_back(dst_index);
|
|
}
|
|
if (index_array.size() % 3) {
|
|
WARN_PRINT("SurfaceTool: Index array not a multiple of 3.");
|
|
}
|
|
}
|
|
|
|
//mikktspace callbacks
|
|
namespace {
|
|
struct TangentGenerationContextUserData {
|
|
LocalVector<SurfaceTool::Vertex> *vertices;
|
|
LocalVector<int> *indices;
|
|
};
|
|
} // namespace
|
|
|
|
int SurfaceTool::mikktGetNumFaces(const SMikkTSpaceContext *pContext) {
|
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
|
|
|
if (triangle_data.indices->size() > 0) {
|
|
return triangle_data.indices->size() / 3;
|
|
} else {
|
|
return triangle_data.vertices->size() / 3;
|
|
}
|
|
}
|
|
|
|
int SurfaceTool::mikktGetNumVerticesOfFace(const SMikkTSpaceContext *pContext, const int iFace) {
|
|
return 3; //always 3
|
|
}
|
|
|
|
void SurfaceTool::mikktGetPosition(const SMikkTSpaceContext *pContext, float fvPosOut[], const int iFace, const int iVert) {
|
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
|
Vector3 v;
|
|
if (triangle_data.indices->size() > 0) {
|
|
uint32_t index = triangle_data.indices->operator[](iFace * 3 + iVert);
|
|
if (index < triangle_data.vertices->size()) {
|
|
v = triangle_data.vertices->operator[](index).vertex;
|
|
}
|
|
} else {
|
|
v = triangle_data.vertices->operator[](iFace * 3 + iVert).vertex;
|
|
}
|
|
|
|
fvPosOut[0] = v.x;
|
|
fvPosOut[1] = v.y;
|
|
fvPosOut[2] = v.z;
|
|
}
|
|
|
|
void SurfaceTool::mikktGetNormal(const SMikkTSpaceContext *pContext, float fvNormOut[], const int iFace, const int iVert) {
|
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
|
Vector3 v;
|
|
if (triangle_data.indices->size() > 0) {
|
|
uint32_t index = triangle_data.indices->operator[](iFace * 3 + iVert);
|
|
if (index < triangle_data.vertices->size()) {
|
|
v = triangle_data.vertices->operator[](index).normal;
|
|
}
|
|
} else {
|
|
v = triangle_data.vertices->operator[](iFace * 3 + iVert).normal;
|
|
}
|
|
|
|
fvNormOut[0] = v.x;
|
|
fvNormOut[1] = v.y;
|
|
fvNormOut[2] = v.z;
|
|
}
|
|
|
|
void SurfaceTool::mikktGetTexCoord(const SMikkTSpaceContext *pContext, float fvTexcOut[], const int iFace, const int iVert) {
|
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
|
Vector2 v;
|
|
if (triangle_data.indices->size() > 0) {
|
|
uint32_t index = triangle_data.indices->operator[](iFace * 3 + iVert);
|
|
if (index < triangle_data.vertices->size()) {
|
|
v = triangle_data.vertices->operator[](index).uv;
|
|
}
|
|
} else {
|
|
v = triangle_data.vertices->operator[](iFace * 3 + iVert).uv;
|
|
}
|
|
|
|
fvTexcOut[0] = v.x;
|
|
fvTexcOut[1] = v.y;
|
|
}
|
|
|
|
void SurfaceTool::mikktSetTSpaceDefault(const SMikkTSpaceContext *pContext, const float fvTangent[], const float fvBiTangent[], const float fMagS, const float fMagT,
|
|
const tbool bIsOrientationPreserving, const int iFace, const int iVert) {
|
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
|
Vertex *vtx = nullptr;
|
|
if (triangle_data.indices->size() > 0) {
|
|
uint32_t index = triangle_data.indices->operator[](iFace * 3 + iVert);
|
|
if (index < triangle_data.vertices->size()) {
|
|
vtx = &triangle_data.vertices->operator[](index);
|
|
}
|
|
} else {
|
|
vtx = &triangle_data.vertices->operator[](iFace * 3 + iVert);
|
|
}
|
|
|
|
if (vtx != nullptr) {
|
|
vtx->tangent = Vector3(fvTangent[0], fvTangent[1], fvTangent[2]);
|
|
vtx->binormal = Vector3(-fvBiTangent[0], -fvBiTangent[1], -fvBiTangent[2]); // for some reason these are reversed, something with the coordinate system in Godot
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::generate_tangents() {
|
|
ERR_FAIL_COND(!(format & Mesh::ARRAY_FORMAT_TEX_UV));
|
|
ERR_FAIL_COND(!(format & Mesh::ARRAY_FORMAT_NORMAL));
|
|
|
|
SMikkTSpaceInterface mkif;
|
|
mkif.m_getNormal = mikktGetNormal;
|
|
mkif.m_getNumFaces = mikktGetNumFaces;
|
|
mkif.m_getNumVerticesOfFace = mikktGetNumVerticesOfFace;
|
|
mkif.m_getPosition = mikktGetPosition;
|
|
mkif.m_getTexCoord = mikktGetTexCoord;
|
|
mkif.m_setTSpace = mikktSetTSpaceDefault;
|
|
mkif.m_setTSpaceBasic = nullptr;
|
|
|
|
SMikkTSpaceContext msc;
|
|
msc.m_pInterface = &mkif;
|
|
|
|
TangentGenerationContextUserData triangle_data;
|
|
triangle_data.vertices = &vertex_array;
|
|
for (Vertex &vertex : vertex_array) {
|
|
vertex.binormal = Vector3();
|
|
vertex.tangent = Vector3();
|
|
}
|
|
triangle_data.indices = &index_array;
|
|
msc.m_pUserData = &triangle_data;
|
|
|
|
bool res = genTangSpaceDefault(&msc);
|
|
|
|
ERR_FAIL_COND(!res);
|
|
format |= Mesh::ARRAY_FORMAT_TANGENT;
|
|
}
|
|
|
|
void SurfaceTool::generate_normals(bool p_flip) {
|
|
ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
|
|
|
|
bool was_indexed = index_array.size();
|
|
|
|
deindex();
|
|
|
|
ERR_FAIL_COND((vertex_array.size() % 3) != 0);
|
|
|
|
HashMap<SmoothGroupVertex, Vector3, SmoothGroupVertexHasher> smooth_hash;
|
|
|
|
for (uint32_t vi = 0; vi < vertex_array.size(); vi += 3) {
|
|
Vertex *v = &vertex_array[vi];
|
|
|
|
Vector3 normal;
|
|
if (!p_flip) {
|
|
normal = Plane(v[0].vertex, v[1].vertex, v[2].vertex).normal;
|
|
} else {
|
|
normal = Plane(v[2].vertex, v[1].vertex, v[0].vertex).normal;
|
|
}
|
|
|
|
for (int i = 0; i < 3; i++) {
|
|
// Add face normal to smooth vertex influence if vertex is member of a smoothing group
|
|
if (v[i].smooth_group != UINT32_MAX) {
|
|
Vector3 *lv = smooth_hash.getptr(v[i]);
|
|
if (!lv) {
|
|
smooth_hash.insert(v[i], normal);
|
|
} else {
|
|
(*lv) += normal;
|
|
}
|
|
} else {
|
|
v[i].normal = normal;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (Vertex &vertex : vertex_array) {
|
|
if (vertex.smooth_group != UINT32_MAX) {
|
|
Vector3 *lv = smooth_hash.getptr(vertex);
|
|
if (!lv) {
|
|
vertex.normal = Vector3();
|
|
} else {
|
|
vertex.normal = lv->normalized();
|
|
}
|
|
}
|
|
}
|
|
|
|
format |= Mesh::ARRAY_FORMAT_NORMAL;
|
|
|
|
if (was_indexed) {
|
|
index();
|
|
}
|
|
}
|
|
|
|
void SurfaceTool::set_material(const Ref<Material> &p_material) {
|
|
material = p_material;
|
|
}
|
|
|
|
Ref<Material> SurfaceTool::get_material() const {
|
|
return material;
|
|
}
|
|
|
|
void SurfaceTool::clear() {
|
|
begun = false;
|
|
primitive = Mesh::PRIMITIVE_LINES;
|
|
format = 0;
|
|
last_bones.clear();
|
|
last_weights.clear();
|
|
index_array.clear();
|
|
vertex_array.clear();
|
|
material.unref();
|
|
last_smooth_group = 0;
|
|
for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
|
|
last_custom_format[i] = CUSTOM_MAX;
|
|
}
|
|
skin_weights = SKIN_4_WEIGHTS;
|
|
}
|
|
|
|
void SurfaceTool::set_skin_weight_count(SkinWeightCount p_weights) {
|
|
ERR_FAIL_COND(begun);
|
|
skin_weights = p_weights;
|
|
}
|
|
SurfaceTool::SkinWeightCount SurfaceTool::get_skin_weight_count() const {
|
|
return skin_weights;
|
|
}
|
|
|
|
void SurfaceTool::set_custom_format(int p_channel_index, CustomFormat p_format) {
|
|
ERR_FAIL_INDEX(p_channel_index, RS::ARRAY_CUSTOM_COUNT);
|
|
ERR_FAIL_COND(!begun);
|
|
ERR_FAIL_INDEX(p_format, CUSTOM_MAX + 1);
|
|
last_custom_format[p_channel_index] = p_format;
|
|
}
|
|
|
|
Mesh::PrimitiveType SurfaceTool::get_primitive_type() const {
|
|
return primitive;
|
|
}
|
|
SurfaceTool::CustomFormat SurfaceTool::get_custom_format(int p_channel_index) const {
|
|
ERR_FAIL_INDEX_V(p_channel_index, RS::ARRAY_CUSTOM_COUNT, CUSTOM_MAX);
|
|
return last_custom_format[p_channel_index];
|
|
}
|
|
void SurfaceTool::optimize_indices_for_cache() {
|
|
ERR_FAIL_COND(optimize_vertex_cache_func == nullptr);
|
|
ERR_FAIL_COND(index_array.size() == 0);
|
|
ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
|
|
ERR_FAIL_COND(index_array.size() % 3 != 0);
|
|
|
|
LocalVector old_index_array = index_array;
|
|
memset(index_array.ptr(), 0, index_array.size() * sizeof(int));
|
|
optimize_vertex_cache_func((unsigned int *)index_array.ptr(), (unsigned int *)old_index_array.ptr(), old_index_array.size(), vertex_array.size());
|
|
}
|
|
|
|
AABB SurfaceTool::get_aabb() const {
|
|
ERR_FAIL_COND_V(vertex_array.size() == 0, AABB());
|
|
|
|
AABB aabb;
|
|
for (uint32_t i = 0; i < vertex_array.size(); i++) {
|
|
if (i == 0) {
|
|
aabb.position = vertex_array[i].vertex;
|
|
} else {
|
|
aabb.expand_to(vertex_array[i].vertex);
|
|
}
|
|
}
|
|
|
|
return aabb;
|
|
}
|
|
Vector<int> SurfaceTool::generate_lod(float p_threshold, int p_target_index_count) {
|
|
Vector<int> lod;
|
|
|
|
ERR_FAIL_COND_V(simplify_func == nullptr, lod);
|
|
ERR_FAIL_COND_V(p_target_index_count < 0, lod);
|
|
ERR_FAIL_COND_V(vertex_array.size() == 0, lod);
|
|
ERR_FAIL_COND_V(index_array.size() == 0, lod);
|
|
ERR_FAIL_COND_V(index_array.size() % 3 != 0, lod);
|
|
ERR_FAIL_COND_V(index_array.size() < (unsigned int)p_target_index_count, lod);
|
|
|
|
lod.resize(index_array.size());
|
|
LocalVector<float> vertices; //uses floats
|
|
vertices.resize(vertex_array.size() * 3);
|
|
for (uint32_t i = 0; i < vertex_array.size(); i++) {
|
|
vertices[i * 3 + 0] = vertex_array[i].vertex.x;
|
|
vertices[i * 3 + 1] = vertex_array[i].vertex.y;
|
|
vertices[i * 3 + 2] = vertex_array[i].vertex.z;
|
|
}
|
|
|
|
float error;
|
|
const int simplify_options = SIMPLIFY_LOCK_BORDER;
|
|
uint32_t index_count = simplify_func((unsigned int *)lod.ptrw(), (unsigned int *)index_array.ptr(), index_array.size(), vertices.ptr(), vertex_array.size(), sizeof(float) * 3, p_target_index_count, p_threshold, simplify_options, &error);
|
|
ERR_FAIL_COND_V(index_count == 0, lod);
|
|
lod.resize(index_count);
|
|
|
|
return lod;
|
|
}
|
|
|
|
void SurfaceTool::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_skin_weight_count", "count"), &SurfaceTool::set_skin_weight_count);
|
|
ClassDB::bind_method(D_METHOD("get_skin_weight_count"), &SurfaceTool::get_skin_weight_count);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_custom_format", "channel_index", "format"), &SurfaceTool::set_custom_format);
|
|
ClassDB::bind_method(D_METHOD("get_custom_format", "channel_index"), &SurfaceTool::get_custom_format);
|
|
|
|
ClassDB::bind_method(D_METHOD("begin", "primitive"), &SurfaceTool::begin);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_vertex", "vertex"), &SurfaceTool::add_vertex);
|
|
ClassDB::bind_method(D_METHOD("set_color", "color"), &SurfaceTool::set_color);
|
|
ClassDB::bind_method(D_METHOD("set_normal", "normal"), &SurfaceTool::set_normal);
|
|
ClassDB::bind_method(D_METHOD("set_tangent", "tangent"), &SurfaceTool::set_tangent);
|
|
ClassDB::bind_method(D_METHOD("set_uv", "uv"), &SurfaceTool::set_uv);
|
|
ClassDB::bind_method(D_METHOD("set_uv2", "uv2"), &SurfaceTool::set_uv2);
|
|
ClassDB::bind_method(D_METHOD("set_bones", "bones"), &SurfaceTool::set_bones);
|
|
ClassDB::bind_method(D_METHOD("set_weights", "weights"), &SurfaceTool::set_weights);
|
|
ClassDB::bind_method(D_METHOD("set_custom", "channel_index", "custom_color"), &SurfaceTool::set_custom);
|
|
ClassDB::bind_method(D_METHOD("set_smooth_group", "index"), &SurfaceTool::set_smooth_group);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_triangle_fan", "vertices", "uvs", "colors", "uv2s", "normals", "tangents"), &SurfaceTool::add_triangle_fan, DEFVAL(Vector<Vector2>()), DEFVAL(Vector<Color>()), DEFVAL(Vector<Vector2>()), DEFVAL(Vector<Vector3>()), DEFVAL(Vector<Plane>()));
|
|
|
|
ClassDB::bind_method(D_METHOD("add_index", "index"), &SurfaceTool::add_index);
|
|
|
|
ClassDB::bind_method(D_METHOD("index"), &SurfaceTool::index);
|
|
ClassDB::bind_method(D_METHOD("deindex"), &SurfaceTool::deindex);
|
|
ClassDB::bind_method(D_METHOD("generate_normals", "flip"), &SurfaceTool::generate_normals, DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("generate_tangents"), &SurfaceTool::generate_tangents);
|
|
|
|
ClassDB::bind_method(D_METHOD("optimize_indices_for_cache"), &SurfaceTool::optimize_indices_for_cache);
|
|
|
|
ClassDB::bind_method(D_METHOD("get_aabb"), &SurfaceTool::get_aabb);
|
|
ClassDB::bind_method(D_METHOD("generate_lod", "nd_threshold", "target_index_count"), &SurfaceTool::generate_lod, DEFVAL(3));
|
|
|
|
ClassDB::bind_method(D_METHOD("set_material", "material"), &SurfaceTool::set_material);
|
|
ClassDB::bind_method(D_METHOD("get_primitive_type"), &SurfaceTool::get_primitive_type);
|
|
|
|
ClassDB::bind_method(D_METHOD("clear"), &SurfaceTool::clear);
|
|
|
|
ClassDB::bind_method(D_METHOD("create_from", "existing", "surface"), &SurfaceTool::create_from);
|
|
ClassDB::bind_method(D_METHOD("create_from_blend_shape", "existing", "surface", "blend_shape"), &SurfaceTool::create_from_blend_shape);
|
|
ClassDB::bind_method(D_METHOD("append_from", "existing", "surface", "transform"), &SurfaceTool::append_from);
|
|
ClassDB::bind_method(D_METHOD("commit", "existing", "flags"), &SurfaceTool::commit, DEFVAL(Variant()), DEFVAL(0));
|
|
ClassDB::bind_method(D_METHOD("commit_to_arrays"), &SurfaceTool::commit_to_arrays);
|
|
|
|
BIND_ENUM_CONSTANT(CUSTOM_RGBA8_UNORM);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RGBA8_SNORM);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RG_HALF);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RGBA_HALF);
|
|
BIND_ENUM_CONSTANT(CUSTOM_R_FLOAT);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RG_FLOAT);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RGB_FLOAT);
|
|
BIND_ENUM_CONSTANT(CUSTOM_RGBA_FLOAT);
|
|
BIND_ENUM_CONSTANT(CUSTOM_MAX);
|
|
BIND_ENUM_CONSTANT(SKIN_4_WEIGHTS);
|
|
BIND_ENUM_CONSTANT(SKIN_8_WEIGHTS);
|
|
}
|
|
|
|
SurfaceTool::SurfaceTool() {
|
|
for (int i = 0; i < RS::ARRAY_CUSTOM_COUNT; i++) {
|
|
last_custom_format[i] = CUSTOM_MAX;
|
|
}
|
|
}
|