122 lines
4.9 KiB
C
122 lines
4.9 KiB
C
/*
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Bullet Continuous Collision Detection and Physics Library
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Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
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This software is provided 'as-is', without any express or implied warranty.
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In no event will the authors be held liable for any damages arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it freely,
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subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/// This file was created by Alex Silverman
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#ifndef BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
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#define BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
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#include "btBvhTriangleMeshShape.h"
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#include "btMaterial.h"
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///The BvhTriangleMaterialMeshShape extends the btBvhTriangleMeshShape. Its main contribution is the interface into a material array, which allows per-triangle friction and restitution.
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ATTRIBUTE_ALIGNED16(class) btMultimaterialTriangleMeshShape : public btBvhTriangleMeshShape
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{
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btAlignedObjectArray <btMaterial*> m_materialList;
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int ** m_triangleMaterials;
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public:
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BT_DECLARE_ALIGNED_ALLOCATOR();
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btMultimaterialTriangleMeshShape(): btBvhTriangleMeshShape() {m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;}
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btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true):
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btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, buildBvh)
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{
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m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
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const unsigned char *vertexbase;
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int numverts;
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PHY_ScalarType type;
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int stride;
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const unsigned char *indexbase;
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int indexstride;
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int numfaces;
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PHY_ScalarType indicestype;
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//m_materialLookup = (int**)(btAlignedAlloc(sizeof(int*) * meshInterface->getNumSubParts(), 16));
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for(int i = 0; i < meshInterface->getNumSubParts(); i++)
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{
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m_meshInterface->getLockedReadOnlyVertexIndexBase(
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&vertexbase,
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numverts,
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type,
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stride,
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&indexbase,
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indexstride,
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numfaces,
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indicestype,
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i);
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//m_materialLookup[i] = (int*)(btAlignedAlloc(sizeof(int) * numfaces, 16));
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}
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}
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///optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
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btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression,const btVector3& bvhAabbMin,const btVector3& bvhAabbMax, bool buildBvh = true):
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btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, bvhAabbMin, bvhAabbMax, buildBvh)
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{
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m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
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const unsigned char *vertexbase;
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int numverts;
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PHY_ScalarType type;
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int stride;
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const unsigned char *indexbase;
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int indexstride;
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int numfaces;
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PHY_ScalarType indicestype;
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//m_materialLookup = (int**)(btAlignedAlloc(sizeof(int*) * meshInterface->getNumSubParts(), 16));
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for(int i = 0; i < meshInterface->getNumSubParts(); i++)
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{
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m_meshInterface->getLockedReadOnlyVertexIndexBase(
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&vertexbase,
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numverts,
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type,
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stride,
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&indexbase,
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indexstride,
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numfaces,
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indicestype,
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i);
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//m_materialLookup[i] = (int*)(btAlignedAlloc(sizeof(int) * numfaces * 2, 16));
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}
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}
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virtual ~btMultimaterialTriangleMeshShape()
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{
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/*
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for(int i = 0; i < m_meshInterface->getNumSubParts(); i++)
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{
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btAlignedFree(m_materialValues[i]);
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m_materialLookup[i] = NULL;
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}
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btAlignedFree(m_materialValues);
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m_materialLookup = NULL;
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*/
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}
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//debugging
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virtual const char* getName()const {return "MULTIMATERIALTRIANGLEMESH";}
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///Obtains the material for a specific triangle
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const btMaterial * getMaterialProperties(int partID, int triIndex);
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}
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;
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#endif //BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
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