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- // Copyright (c) 2008-2026 NVIDIA Corporation. All rights reserved.
+ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ // SPDX-License-Identifier: Apache-2.0
#ifndef EXT_REMESHER_H
#define EXT_REMESHER_H
#include "foundation/PxBounds3.h"
#include "foundation/PxArray.h"
namespace physx
{
namespace Ext
{
// ------------------------------------------------------------------------------
class Remesher {
public:
Remesher() {}
~Remesher() {}
void remesh(const PxVec3* verts, PxU32 nbVertices, const PxU32* triIds, PxU32 nbTriangleIndices, PxU32 resolution = 100, PxArray<PxU32> *vertexMap = nullptr);
void remesh(const PxArray<PxVec3>& verts, const PxArray<PxU32>& triIds, PxU32 resolution = 100, PxArray<PxU32> *vertexMap = nullptr);
void clear();
void readBack(PxArray<PxVec3>& vertices, PxArray<PxU32>& triIds);
private:
PxArray<PxVec3> vertices;
PxArray<PxI32> triIds;
void addCell(PxI32 xi, PxI32 yi, PxI32 zi);
PxI32 getCellNr(PxI32 xi, PxI32 yi, PxI32 zi) const;
bool cellExists(PxI32 xi, PxI32 yi, PxI32 zi) const;
void removeDuplicateVertices();
void pruneInternalSurfaces();
void computeNormals();
void findTriNeighbors();
void project(const PxVec3* inputVerts, const PxU32* inputTriIds, PxU32 nbTriangleIndices,
float searchDist, float surfaceDist);
void createVertexMap(const PxVec3* verts, PxU32 nbVertices, const PxVec3 &gridOrigin, PxF32 &gridSpacing,
PxArray<PxU32> &vertexMap);
// -------------------------------------------------------------------------------------
struct Cell
{
void init(PxI32 _xi, PxI32 _yi, PxI32 _zi) {
this->xi = _xi; this->yi = _yi; this->zi = _zi;
this->next = -1;
}
PxI32 xi, yi, zi;
PxI32 next;
};
PxArray<Cell> cells;
PxArray<PxI32> firstCell;
PxArray<PxVec3> normals;
PxArray<PxI32> triNeighbors;
PxArray<PxI32> cellOfVertex;
PxArray<PxBounds3> bvhBounds;
PxArray<PxI32> bvhTris;
};
}
}
#endif