include/extensions/PxTetMakerExt.h

File members: include/extensions/PxTetMakerExt.h

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#ifndef PX_TETMAKER_EXT_H
#define PX_TETMAKER_EXT_H

#include "foundation/PxSimpleTypes.h"
#include "foundation/PxVec3.h"
#include "common/PxCoreUtilityTypes.h"
#include "foundation/PxArray.h"
#include "PxTriangleMeshAnalysisResult.h"
#include "PxTetrahedronMeshAnalysisResult.h"

#if !PX_DOXYGEN
namespace physx
{
#endif

class PxTriangleMesh;
class PxTetrahedronMeshDesc;
class PxDeformableVolumeSimulationDataDesc;
struct PxTetMakerData;
class PxSimpleTriangleMesh;

class PxTetMaker
{
public:

    static bool createConformingTetrahedronMesh(const PxSimpleTriangleMesh& triangleMesh, physx::PxArray<physx::PxVec3>& outVertices, physx::PxArray<physx::PxU32>& outTetIndices,
        const bool validate = true, PxReal volumeThreshold = 0.0f);

    static bool createVoxelTetrahedronMesh(const PxTetrahedronMeshDesc& tetMesh, const PxU32 numVoxelsAlongLongestBoundingBoxAxis,
        physx::PxArray<physx::PxVec3>& outVertices, physx::PxArray<physx::PxU32>& outTetIndices, PxI32* inputPointToOutputTetIndex = NULL, const PxU32* anchorNodeIndices = NULL, PxU32 numTetsPerVoxel = 5);

    static bool createVoxelTetrahedronMeshFromEdgeLength(const PxTetrahedronMeshDesc& tetMesh, const PxReal voxelEdgeLength,
         physx::PxArray<physx::PxVec3>& outVertices, physx::PxArray<physx::PxU32>& outTetIndices, PxI32* inputPointToOutputTetIndex = NULL, const PxU32* anchorNodeIndices = NULL, PxU32 numTetsPerVoxel = 5);

    static PxTriangleMeshAnalysisResults validateTriangleMesh(const PxSimpleTriangleMesh& triangleMesh, const PxReal minVolumeThreshold = 1e-6f, const PxReal minTriangleAngleRadians = 10.0f*3.1415926535898f / 180.0f);

    static PxTetrahedronMeshAnalysisResults validateTetrahedronMesh(const PxBoundedData& points, const PxBoundedData& tetrahedra, const PxReal minTetVolumeThreshold = 1e-8f);

    static void simplifyTriangleMesh(const PxArray<PxVec3>& inputVertices, const PxArray<PxU32>&inputIndices, int targetTriangleCount, PxF32 maximalEdgeLength,
        PxArray<PxVec3>& outputVertices, PxArray<PxU32>& outputIndices,
        PxArray<PxU32> *vertexMap = NULL, PxReal edgeLengthCostWeight = 0.1f, PxReal flatnessDetectionThreshold = 0.01f,
        bool projectSimplifiedPointsOnInputMeshSurface = false, PxArray<PxU32>* outputVertexToInputTriangle = NULL, bool removeDisconnectedPatches = false);

    static void remeshTriangleMesh(const PxArray<PxVec3>& inputVertices, const PxArray<PxU32>&inputIndices, PxU32 gridResolution,
        PxArray<PxVec3>& outputVertices, PxArray<PxU32>& outputIndices, PxArray<PxU32> *vertexMap = NULL);

    static void remeshTriangleMesh(const PxVec3* inputVertices, PxU32 nbVertices, const PxU32* inputIndices, PxU32 nbIndices, PxU32 gridResolution,
        PxArray<PxVec3>& outputVertices, PxArray<PxU32>& outputIndices, PxArray<PxU32> *vertexMap = NULL);

    static void createTreeBasedTetrahedralMesh(const PxArray<PxVec3>& inputVertices, const PxArray<PxU32>&inputIndices,
        bool useTreeNodes, PxArray<PxVec3>& outputVertices, PxArray<PxU32>& outputIndices, PxReal volumeThreshold = 0.0f);

    static void createRelaxedVoxelTetrahedralMesh(const PxArray<PxVec3>& inputVertices, const PxArray<PxU32>&inputIndices,
        PxArray<PxVec3>& outputVertices, PxArray<PxU32>& outputIndices,
        PxI32 resolution, PxI32 numRelaxationIterations = 5, PxF32 relMinTetVolume = 0.05f);

    static void detectTriangleIslands(const PxI32* triangles, PxU32 numTriangles, PxArray<PxU32>& islandIndexPerTriangle);

    static PxU32 findLargestIslandId(const PxU32* islandIndexPerTriangle, PxU32 numTriangles);
};

#if !PX_DOXYGEN
}
#endif

#endif