Bullet Collision Detection & Physics Library: btMultimaterialTriangleMeshShape.cpp Source File

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btMultimaterialTriangleMeshShape.cpp
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1/*
2Bullet Continuous Collision Detection and Physics Library
3Copyright (c) 2003-2009 Erwin Coumans http://bulletphysics.org
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
17
18#include "BulletCollision/CollisionShapes/btMultimaterialTriangleMeshShape.h"
19#include "BulletCollision/CollisionShapes/btTriangleIndexVertexMaterialArray.h"
20//#include "BulletCollision/CollisionShapes/btOptimizedBvh.h"
21
23 const btMaterial *btMultimaterialTriangleMeshShape::getMaterialProperties(int partID, int triIndex)
24{
25 const unsigned char *materialBase = 0;
26 int numMaterials;
27 PHY_ScalarType materialType;
28 int materialStride;
29 const unsigned char *triangleMaterialBase = 0;
30 int numTriangles;
31 int triangleMaterialStride;
32 PHY_ScalarType triangleType;
33
34 ((btTriangleIndexVertexMaterialArray *)m_meshInterface)->getLockedReadOnlyMaterialBase(&materialBase, numMaterials, materialType, materialStride, &triangleMaterialBase, numTriangles, triangleMaterialStride, triangleType, partID);
35
36 // return the pointer to the place with the friction for the triangle
37 // TODO: This depends on whether it's a moving mesh or not
38 // BUG IN GIMPACT
39 //return (btScalar*)(&materialBase[triangleMaterialBase[(triIndex-1) * triangleMaterialStride] * materialStride]);
40 int *matInd = (int *)(&(triangleMaterialBase[(triIndex * triangleMaterialStride)]));
41 btMaterial *matVal = (btMaterial *)(&(materialBase[*matInd * materialStride]));
42 return (matVal);
43}
PHY_ScalarType
PHY_ScalarType
PHY_ScalarType enumerates possible scalar types.
Definition btConcaveShape.h:26
btMultimaterialTriangleMeshShape.h
btTriangleIndexVertexMaterialArray.h
btMaterial
This file was created by Alex Silverman.
Definition btMaterial.h:23
btMultimaterialTriangleMeshShape::getMaterialProperties
const btMaterial * getMaterialProperties(int partID, int triIndex)
Obtains the material for a specific triangle.
Definition btMultimaterialTriangleMeshShape.cpp:23
btTriangleIndexVertexMaterialArray
Teh btTriangleIndexVertexMaterialArray is built on TriangleIndexVertexArray The addition of a materia...
Definition btTriangleIndexVertexMaterialArray.h:52
btTriangleMeshShape::m_meshInterface
btStridingMeshInterface * m_meshInterface
Definition btTriangleMeshShape.h:29