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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
+ // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ // 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.
+
+ #ifndef DY_DEFORMABLE_SURFACE_CORE_H
+ #define DY_DEFORMABLE_SURFACE_CORE_H
+
+ #include "foundation/PxSimpleTypes.h"
+ #include "foundation/PxTransform.h"
+ #include "foundation/PxVec4.h"
+ #include "foundation/PxArray.h"
+ #include "PxDeformableSurface.h"
+ #include "PxDeformableSurfaceFlag.h"
+ #include "DyDeformableBodyCore.h"
+
+ namespace physx
+ {
+ namespace Dy
+ {
+
+ struct DeformableSurfaceCore : public DeformableBodyCore
+ {
+ public:
+ // number of collision pair updates per timestep. Collision pair is updated at least once per timestep and increasing the frequency provides better collision pairs.
+ PxU32 nbCollisionPairUpdatesPerTimestep;
+
+ // number of collision substeps in each sub-timestep. Collision constraints can be applied multiple times in each sub-timestep.
+ PxU32 nbCollisionSubsteps;
+
+ //device - managed by PhysX
+ PxVec4* positionInvMass;
+ PxVec4* velocity;
+ PxVec4* restPosition;
+
+ PxDeformableSurfaceDataFlags dirtyFlags;
+ PxDeformableSurfaceFlags surfaceFlags;
+
+ DeformableSurfaceCore()
+ : nbCollisionPairUpdatesPerTimestep(0)
+ , nbCollisionSubsteps(1)
+ , positionInvMass(NULL)
+ , velocity(NULL)
+ , restPosition(NULL)
+ , dirtyFlags(0)
+ , surfaceFlags(0)
+ {
+ }
+ };
+
+ } // namespace Dy
+ } // namespace physx
+
+ #endif // DY_DEFORMABLE_SURFACE_CORE_H