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/**************************************************************************/
/* register_types.cpp */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "register_types.h"
#include "scene/resources/mesh.h"
#include "thirdparty/vhacd/public/VHACD.h"
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 Ref<MeshConvexDecompositionSettings> &p_settings, Vector<Vector<uint32_t>> *r_convex_indices) {
VHACD::IVHACD::Parameters params;
params.m_concavity = p_settings->get_max_concavity();
params.m_alpha = p_settings->get_symmetry_planes_clipping_bias();
params.m_beta = p_settings->get_revolution_axes_clipping_bias();
params.m_minVolumePerCH = p_settings->get_min_volume_per_convex_hull();
params.m_resolution = p_settings->get_resolution();
params.m_maxNumVerticesPerCH = p_settings->get_max_num_vertices_per_convex_hull();
params.m_planeDownsampling = p_settings->get_plane_downsampling();
params.m_convexhullDownsampling = p_settings->get_convex_hull_downsampling();
params.m_pca = p_settings->get_normalize_mesh();
params.m_mode = p_settings->get_mode();
params.m_convexhullApproximation = p_settings->get_convex_hull_approximation();
params.m_oclAcceleration = true;
params.m_maxConvexHulls = p_settings->get_max_convex_hulls();
params.m_projectHullVertices = p_settings->get_project_hull_vertices();
VHACD::IVHACD *decomposer = VHACD::CreateVHACD();
decomposer->Compute(p_vertices, p_vertex_count, p_triangles, p_triangle_count, params);
int hull_count = decomposer->GetNConvexHulls();
Vector<Vector<Vector3>> ret;
ret.resize(hull_count);
if (r_convex_indices) {
r_convex_indices->resize(hull_count);
}
for (int i = 0; i < hull_count; i++) {
VHACD::IVHACD::ConvexHull hull;
decomposer->GetConvexHull(i, hull);
Vector<Vector3> &points = ret.write[i];
points.resize(hull.m_nPoints);
Vector3 *w = points.ptrw();
for (uint32_t j = 0; j < hull.m_nPoints; ++j) {
for (int k = 0; k < 3; k++) {
w[j][k] = hull.m_points[j * 3 + k];
}
}
if (r_convex_indices) {
Vector<uint32_t> &indices = r_convex_indices->write[i];
indices.resize(hull.m_nTriangles * 3);
memcpy(indices.ptrw(), hull.m_triangles, hull.m_nTriangles * 3 * sizeof(uint32_t));
}
}
decomposer->Clean();
decomposer->Release();
return ret;
}
void initialize_vhacd_module(ModuleInitializationLevel p_level) {
if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
return;
}
Mesh::convex_decomposition_function = convex_decompose;
}
void uninitialize_vhacd_module(ModuleInitializationLevel p_level) {
if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
return;
}
Mesh::convex_decomposition_function = nullptr;
}
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