99 lines
4.4 KiB
C++
99 lines
4.4 KiB
C++
/*************************************************************************/
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/* register_types.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 "register_types.h"
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#include "scene/resources/mesh.h"
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#include "thirdparty/vhacd/public/VHACD.h"
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static Vector<Vector<Vector3>> convex_decompose(const real_t *p_vertices, int p_vertex_count, const uint32_t *p_triangles, int p_triangle_count, const Mesh::ConvexDecompositionSettings &p_settings, Vector<Vector<uint32_t>> *r_convex_indices) {
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VHACD::IVHACD::Parameters params;
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params.m_concavity = p_settings.max_concavity;
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params.m_alpha = p_settings.symmetry_planes_clipping_bias;
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params.m_beta = p_settings.revolution_axes_clipping_bias;
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params.m_minVolumePerCH = p_settings.min_volume_per_convex_hull;
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params.m_resolution = p_settings.resolution;
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params.m_maxNumVerticesPerCH = p_settings.max_num_vertices_per_convex_hull;
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params.m_planeDownsampling = p_settings.plane_downsampling;
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params.m_convexhullDownsampling = p_settings.convexhull_downsampling;
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params.m_pca = p_settings.normalize_mesh;
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params.m_mode = p_settings.mode;
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params.m_convexhullApproximation = p_settings.convexhull_approximation;
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params.m_oclAcceleration = true;
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params.m_maxConvexHulls = p_settings.max_convex_hulls;
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params.m_projectHullVertices = p_settings.project_hull_vertices;
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VHACD::IVHACD *decomposer = VHACD::CreateVHACD();
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decomposer->Compute(p_vertices, p_vertex_count, p_triangles, p_triangle_count, params);
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int hull_count = decomposer->GetNConvexHulls();
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Vector<Vector<Vector3>> ret;
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ret.resize(hull_count);
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if (r_convex_indices) {
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r_convex_indices->resize(hull_count);
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}
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for (int i = 0; i < hull_count; i++) {
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VHACD::IVHACD::ConvexHull hull;
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decomposer->GetConvexHull(i, hull);
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Vector<Vector3> &points = ret.write[i];
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points.resize(hull.m_nPoints);
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Vector3 *w = points.ptrw();
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for (uint32_t j = 0; j < hull.m_nPoints; ++j) {
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for (int k = 0; k < 3; k++) {
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w[j][k] = hull.m_points[j * 3 + k];
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}
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}
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if (r_convex_indices) {
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Vector<uint32_t> &indices = r_convex_indices->write[i];
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indices.resize(hull.m_nTriangles * 3);
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memcpy(indices.ptrw(), hull.m_triangles, hull.m_nTriangles * 3 * sizeof(uint32_t));
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}
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}
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decomposer->Clean();
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decomposer->Release();
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return ret;
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}
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void register_vhacd_types() {
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Mesh::convex_decomposition_function = convex_decompose;
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}
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void unregister_vhacd_types() {
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Mesh::convex_decomposition_function = nullptr;
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}
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