118 lines
4.7 KiB
C++
118 lines
4.7 KiB
C++
//
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// 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) 2008-2019 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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#include "geometry/PxTriangleMesh.h"
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#include "PxvGeometry.h"
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#include "PxsMaterialManager.h"
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#include "PxcNpThreadContext.h"
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#include "GuHeightField.h"
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using namespace physx;
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using namespace Gu;
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namespace physx
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{
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bool PxcGetMaterialShapeHeightField(const PxsShapeCore* shape0, const PxsShapeCore* shape1, PxcNpThreadContext& context, PxsMaterialInfo* materialInfo);
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bool PxcGetMaterialHeightField(const PxsShapeCore* shape, const PxU32 index, PxcNpThreadContext& context, PxsMaterialInfo* materialInfo);
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PxU32 GetMaterialIndex(const Gu::HeightFieldData* hfData, PxU32 triangleIndex);
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}
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physx::PxU32 physx::GetMaterialIndex(const Gu::HeightFieldData* hfData, PxU32 triangleIndex)
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{
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const PxU32 sampleIndex = triangleIndex >> 1;
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const bool isFirstTriangle = (triangleIndex & 0x1) == 0;
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//get sample
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const PxHeightFieldSample* hf = &hfData->samples[sampleIndex];
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return isFirstTriangle ? hf->materialIndex0 : hf->materialIndex1;
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}
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bool physx::PxcGetMaterialHeightField(const PxsShapeCore* shape, const PxU32 index, PxcNpThreadContext& context, PxsMaterialInfo* materialInfo)
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{
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PX_ASSERT(index == 1);
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PX_UNUSED(index);
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const ContactBuffer& contactBuffer = context.mContactBuffer;
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const PxHeightFieldGeometryLL& hfGeom = shape->geometry.get<const PxHeightFieldGeometryLL>();
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if(hfGeom.materials.numIndices <= 1)
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{
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for(PxU32 i=0; i< contactBuffer.count; ++i)
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{
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(&materialInfo[i].mMaterialIndex0)[index] = shape->materialIndex;
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}
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}
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else
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{
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const PxU16* materialIndices = hfGeom.materials.indices;
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const Gu::HeightFieldData* hf = hfGeom.heightFieldData;
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for(PxU32 i=0; i< contactBuffer.count; ++i)
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{
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const Gu::ContactPoint& contact = contactBuffer.contacts[i];
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const PxU32 localMaterialIndex = GetMaterialIndex(hf, contact.internalFaceIndex1);
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(&materialInfo[i].mMaterialIndex0)[index] = materialIndices[localMaterialIndex];
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}
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}
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return true;
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}
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bool physx::PxcGetMaterialShapeHeightField(const PxsShapeCore* shape0, const PxsShapeCore* shape1, PxcNpThreadContext& context, PxsMaterialInfo* materialInfo)
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{
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const ContactBuffer& contactBuffer = context.mContactBuffer;
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const PxHeightFieldGeometryLL& hfGeom = shape1->geometry.get<const PxHeightFieldGeometryLL>();
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if(hfGeom.materials.numIndices <= 1)
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{
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for(PxU32 i=0; i< contactBuffer.count; ++i)
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{
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materialInfo[i].mMaterialIndex0 = shape0->materialIndex;
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materialInfo[i].mMaterialIndex1 = shape1->materialIndex;
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}
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}
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else
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{
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const PxU16* materialIndices = hfGeom.materials.indices;
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const Gu::HeightFieldData* hf = hfGeom.heightFieldData;
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for(PxU32 i=0; i< contactBuffer.count; ++i)
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{
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const Gu::ContactPoint& contact = contactBuffer.contacts[i];
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materialInfo[i].mMaterialIndex0 = shape0->materialIndex;
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//contact.featureIndex0 = shape0->materialIndex;
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const PxU32 localMaterialIndex = GetMaterialIndex(hf, contact.internalFaceIndex1);
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//contact.featureIndex1 = materialIndices[localMaterialIndex];
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PX_ASSERT(localMaterialIndex<hfGeom.materials.numIndices);
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materialInfo[i].mMaterialIndex1 = materialIndices[localMaterialIndex];
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}
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}
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return true;
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}
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