101 lines
3.8 KiB
C++
101 lines
3.8 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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#ifndef PX_CONVEXHULLLIB_H
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#define PX_CONVEXHULLLIB_H
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#include "cooking/PxConvexMeshDesc.h"
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#include "cooking/PxCooking.h"
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#include "CmPhysXCommon.h"
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namespace physx
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{
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//////////////////////////////////////////////////////////////////////////
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// base class for the convex hull libraries - inflation based and quickhull
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class ConvexHullLib
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{
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PX_NOCOPY(ConvexHullLib)
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public:
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// functions
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ConvexHullLib(const PxConvexMeshDesc& desc, const PxCookingParams& params)
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: mConvexMeshDesc(desc), mCookingParams(params), mSwappedIndices(NULL),
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mShiftedVerts(NULL)
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{
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}
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virtual ~ConvexHullLib();
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// computes the convex hull from provided points
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virtual PxConvexMeshCookingResult::Enum createConvexHull() = 0;
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// fills the PxConvexMeshDesc with computed hull data
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virtual void fillConvexMeshDesc(PxConvexMeshDesc& desc) = 0;
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// compute the edge list information if possible
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virtual bool createEdgeList(const PxU32 nbIndices, const PxU8* indices, PxU8** hullDataFacesByEdges8, PxU16** edgeData16, PxU16** edges) = 0;
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static const PxU32 gpuMaxVertsPerFace = 32;
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protected:
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// clean input vertices from duplicates, normalize etc.
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bool cleanupVertices(PxU32 svcount, // input vertex count
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const PxVec3* svertices, // vertices
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PxU32 stride, // stride
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PxU32& vcount, // output number of vertices
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PxVec3* vertices, // location to store the results.
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PxVec3& scale, // scale
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PxVec3& center); // center
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// shift vertices around origin and clean input vertices from duplicates, normalize etc.
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bool shiftAndcleanupVertices(PxU32 svcount, // input vertex count
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const PxVec3* svertices, // vertices
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PxU32 stride, // stride
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PxU32& vcount, // output number of vertices
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PxVec3* vertices, // location to store the results.
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PxVec3& scale, // scale
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PxVec3& center); // center
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void swapLargestFace(PxConvexMeshDesc& desc);
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void shiftConvexMeshDesc(PxConvexMeshDesc& desc);
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protected:
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const PxConvexMeshDesc& mConvexMeshDesc;
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const PxCookingParams& mCookingParams;
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PxU32* mSwappedIndices;
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PxVec3 mOriginShift;
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PxVec3* mShiftedVerts;
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};
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}
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#endif
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