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+ // Redistribution and use in source and binary forms, with or without
+ // modification, are permitted provided that the following conditions
+ // are met:
+ // * Redistributions of source code must retain the above copyright
+ // notice, this list of conditions and the following disclaimer.
+ // * Redistributions in binary form must reproduce the above copyright
+ // notice, this list of conditions and the following disclaimer in the
+ // documentation and/or other materials provided with the distribution.
+ // * Neither the name of NVIDIA CORPORATION nor the names of its
+ // contributors may be used to endorse or promote products derived
+ // from this software without specific prior written permission.
+ //
+ // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+ // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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+ // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ // OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ //
+ // Copyright (c) 2008-2026 NVIDIA Corporation. All rights reserved.
+ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
+ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
+
+ #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