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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
#ifndef PX_DEFORMABLE_SKINNING_EXT_H
#define PX_DEFORMABLE_SKINNING_EXT_H
#include "PxDeformableSkinning.h"
#include "foundation/PxVec3.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
struct PxCookingParams;
class PxSimpleTriangleMesh;
class PxInsertionCallback;
/**
\brief Utility functions for deformable surface and volume skinning
*/
class PxDeformableSkinningExt
{
public:
/**
\brief Initializes the interpolated vertices from guide vertices, normals, and triangles for deformable surface skinning
This function calculates the skinning embedding information for a deformable surface mesh,
where each embedded vertex is interpolated based on the surrounding guide vertices and triangles.
\param[out] embeddingInfo A pointer to a PxTriangleMeshEmbeddingInfo object that will store the calculated embedding information. Must be of length numEmbeddedVertices
\param[in] guideVertices A pointer to an array of guide vertices used for interpolation
\param[in] guideNormals A pointer to an array of guide normals corresponding to the guide vertices
\param[in] guideTriangles A pointer to an array of indices defining the guide triangles
\param[in] nbGuideTriangles The number of guide triangles
\param[in] embeddedVertices A pointer to an array of vertices that will be embedded and interpolated
\param[in] nbEmbeddedVertices The number of embedded vertices
\see PxTriangleMeshEmbeddingInfo
*/
static void initializeInterpolatedVertices(
PxTriangleMeshEmbeddingInfo* embeddingInfo,
const PxVec3* guideVertices, const PxVec3* guideNormals,
const PxU32* guideTriangles, PxU32 nbGuideTriangles, const PxVec3* embeddedVertices,
PxU32 nbEmbeddedVertices);
/**
\brief Initializes the interpolated vertices from guide vertices and tetrahedra for deformable volume skinning
This function calculates the skinning embedding information for a deformable volume mesh,
where each embedded vertex is interpolated based on the surrounding guide vertices and tetrahedra.
\param[out] embeddingInfo A pointer to a PxTetrahedronMeshEmbeddingInfo object that will store the calculated embedding information. Must be of length numEmbeddedVertices
\param[in] guideVertices A pointer to an array of guide vertices used for interpolation
\param[in] guideTetrahedra A pointer to an array of indices defining the guide tetrahedra
\param[in] nbGuideTetrahedra The number of guide tetrahedra
\param[in] embeddedVertices A pointer to an array of vertices that will be embedded and interpolated
\param[in] nbEmbeddedVertices The number of embedded vertices
\see PxTetrahedronMeshEmbeddingInfo
*/
static void initializeInterpolatedVertices(
PxTetrahedronMeshEmbeddingInfo* embeddingInfo,
const PxVec3* guideVertices,
const PxU32* guideTetrahedra, PxU32 nbGuideTetrahedra, const PxVec3* embeddedVertices,
PxU32 nbEmbeddedVertices);
};
#if !PX_DOXYGEN
} // namespace physx
#endif
#endif // PX_DEFORMABLE_SKINNING_EXT_H