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source: code/branches/kicklib/src/external/bullet/BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h @ 8740

Last change on this file since 8740 was 7983, checked in by rgrieder, 14 years ago

Updated Bullet Physics Engine from v2.74 to v2.77

  • Property svn:eol-style set to native
File size: 4.7 KB
RevLine 
[1963]1/*
2Bullet Continuous Collision Detection and Physics Library
[7983]3Copyright (c) 2003-2009 Erwin Coumans  http://bulletphysics.org
[1963]4
5This software is provided 'as-is', without any express or implied warranty.
6In no event will the authors be held liable for any damages arising from the use of this software.
7Permission is granted to anyone to use this software for any purpose,
8including commercial applications, and to alter it and redistribute it freely,
9subject to the following restrictions:
10
111. 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.
122. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
133. This notice may not be removed or altered from any source distribution.
14*/
15
16/// This file was created by Alex Silverman
17
18#ifndef BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
19#define BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
20
21#include "btBvhTriangleMeshShape.h"
22#include "btMaterial.h"
23
24///The BvhTriangleMaterialMeshShape extends the btBvhTriangleMeshShape. Its main contribution is the interface into a material array, which allows per-triangle friction and restitution.
25ATTRIBUTE_ALIGNED16(class) btMultimaterialTriangleMeshShape : public btBvhTriangleMeshShape
26{
27    btAlignedObjectArray <btMaterial*> m_materialList;
28    int ** m_triangleMaterials;
29
30public:
31
32        BT_DECLARE_ALIGNED_ALLOCATOR();
33
[2882]34    btMultimaterialTriangleMeshShape(): btBvhTriangleMeshShape() {m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;}
[1963]35    btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true):
36        btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, buildBvh)
37        {
[2882]38            m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
39
[1963]40            const unsigned char *vertexbase;
41            int numverts;
42            PHY_ScalarType type;
43            int stride;
44            const unsigned char *indexbase;
45            int indexstride;
46            int numfaces;
47            PHY_ScalarType indicestype;
48
49            //m_materialLookup = (int**)(btAlignedAlloc(sizeof(int*) * meshInterface->getNumSubParts(), 16));
50
51            for(int i = 0; i < meshInterface->getNumSubParts(); i++)
52            {
53                m_meshInterface->getLockedReadOnlyVertexIndexBase(
54                    &vertexbase,
55                    numverts,
56                    type,
57                    stride,
58                    &indexbase,
59                    indexstride,
60                    numfaces,
61                    indicestype,
62                    i);
63                //m_materialLookup[i] = (int*)(btAlignedAlloc(sizeof(int) * numfaces, 16));
64            }
65        }
66
67        ///optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
68        btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression,const btVector3& bvhAabbMin,const btVector3& bvhAabbMax, bool buildBvh = true):
69        btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, bvhAabbMin, bvhAabbMax, buildBvh)
70        {
[2882]71            m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
72
[1963]73            const unsigned char *vertexbase;
74            int numverts;
75            PHY_ScalarType type;
76            int stride;
77            const unsigned char *indexbase;
78            int indexstride;
79            int numfaces;
80            PHY_ScalarType indicestype;
81
82            //m_materialLookup = (int**)(btAlignedAlloc(sizeof(int*) * meshInterface->getNumSubParts(), 16));
83
84            for(int i = 0; i < meshInterface->getNumSubParts(); i++)
85            {
86                m_meshInterface->getLockedReadOnlyVertexIndexBase(
87                    &vertexbase,
88                    numverts,
89                    type,
90                    stride,
91                    &indexbase,
92                    indexstride,
93                    numfaces,
94                    indicestype,
95                    i);
96                //m_materialLookup[i] = (int*)(btAlignedAlloc(sizeof(int) * numfaces * 2, 16));
97            }
98        }
99       
100    virtual ~btMultimaterialTriangleMeshShape()
101    {
102/*
103        for(int i = 0; i < m_meshInterface->getNumSubParts(); i++)
104        {
105            btAlignedFree(m_materialValues[i]);
106            m_materialLookup[i] = NULL;
107        }
108        btAlignedFree(m_materialValues);
109        m_materialLookup = NULL;
110*/
111    }
112        //debugging
113        virtual const char*     getName()const {return "MULTIMATERIALTRIANGLEMESH";}
114
115    ///Obtains the material for a specific triangle
116    const btMaterial * getMaterialProperties(int partID, int triIndex);
117
118}
119;
120
121#endif //BVH_TRIANGLE_MATERIAL_MESH_SHAPE_H
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