101 lines
4.7 KiB
C++
101 lines
4.7 KiB
C++
// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2023 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_TETRAHEDRON_MESH_EXT_H
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#define PX_TETRAHEDRON_MESH_EXT_H
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/** \addtogroup extensions
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@{
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*/
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#include "foundation/PxVec3.h"
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#include "foundation/PxArray.h"
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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class PxTetrahedronMesh;
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/**
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\brief utility functions for use with PxTetrahedronMesh and subclasses
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*/
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class PxTetrahedronMeshExt
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{
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public:
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/** Returns the index of the tetrahedron that contains a point
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\param[in] mesh The tetmesh
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\param[in] point The point to find the enclosing tetrahedron for
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\param[in] bary The barycentric coordinates of the point inside the enclosing tetrahedron
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\param[in] tolerance Tolerance value used classify points as inside if they lie exactly a tetrahedron's surface
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\return The index of the tetrahedon containing the point, -1 if not tetrahedron contains the opoint
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*/
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static PxI32 findTetrahedronContainingPoint(const PxTetrahedronMesh* mesh, const PxVec3& point, PxVec4& bary, PxReal tolerance = 1e-6f);
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/** Returns the index of the tetrahedron closest to a point
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\param[in] mesh The tetmesh
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\param[in] point The point to find the closest tetrahedron for
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\param[in] bary The barycentric coordinates of the point in the tetrahedron
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\return The index of the tetrahedon closest to the point
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*/
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static PxI32 findTetrahedronClosestToPoint(const PxTetrahedronMesh* mesh, const PxVec3& point, PxVec4& bary);
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/** Extracts the surface triangles of a tetmesh
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The extracted triangle's vertex indices point to the vertex buffer of the tetmesh.
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\param[in] tetrahedra The tetrahedra indices
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\param[in] numTetrahedra The number of tetrahedra
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\param[in] sixteenBitIndices If set to true, the tetrahedra indices are read as 16bit integers, otherwise 32bit integers are used
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\param[in] surfaceTriangles The resulting surface triangles
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\param[in] surfaceTriangleToTet Optional array to get the index of a tetrahedron that is adjacent to the surface triangle with the corresponding index
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\param[in] flipTriangleOrientation Reverses the orientation of the ouput triangles
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*/
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static void extractTetMeshSurface(const void* tetrahedra, PxU32 numTetrahedra, bool sixteenBitIndices, PxArray<PxU32>& surfaceTriangles, PxArray<PxU32>* surfaceTriangleToTet = NULL, bool flipTriangleOrientation = false);
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/** Extracts the surface triangles of a tetmesh
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The extracted triangle's vertex indices point to the vertex buffer of the tetmesh.
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\param[in] mesh The mesh from which the surface shall be computed
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\param[in] surfaceTriangles The resulting surface triangles
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\param[in] surfaceTriangleToTet Optional array to get the index of a tetrahedron that is adjacent to the surface triangle with the corresponding index
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\param[in] flipTriangleOrientation Reverses the orientation of the ouput triangles
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*/
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static void extractTetMeshSurface(const PxTetrahedronMesh* mesh, PxArray<PxU32>& surfaceTriangles, PxArray<PxU32>* surfaceTriangleToTet = NULL, bool flipTriangleOrientation = false);
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};
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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