diff options
Diffstat (limited to 'extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h')
| -rw-r--r-- | extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h | 68 |
1 files changed, 31 insertions, 37 deletions
diff --git a/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h b/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h index 525f5336b48..1f51b2f2c87 100644 --- a/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h +++ b/extern/bullet2/src/BulletCollision/CollisionShapes/btTriangleMesh.h @@ -17,54 +17,48 @@ subject to the following restrictions: #ifndef TRIANGLE_MESH_H #define TRIANGLE_MESH_H -#include "btStridingMeshInterface.h" -#include "../../LinearMath/btVector3.h" -#include "../../LinearMath/btAlignedObjectArray.h" - -///TriangleMesh provides storage for a concave triangle mesh. It can be used as data for the btTriangleMeshShape. -class btTriangleMesh : public btStridingMeshInterface +#include "btTriangleIndexVertexArray.h" +#include "LinearMath/btVector3.h" +#include "LinearMath/btAlignedObjectArray.h" + +///The btTriangleMesh class is a convenience class derived from btTriangleIndexVertexArray, that provides storage for a concave triangle mesh. It can be used as data for the btBvhTriangleMeshShape. +///It allows either 32bit or 16bit indices, and 4 (x-y-z-w) or 3 (x-y-z) component vertices. +///If you want to share triangle/index data between graphics mesh and collision mesh (btBvhTriangleMeshShape), you can directly use btTriangleIndexVertexArray or derive your own class from btStridingMeshInterface. +///Performance of btTriangleMesh and btTriangleIndexVertexArray used in a btBvhTriangleMeshShape is the same. +///It has a brute-force option to weld together closeby vertices. +class btTriangleMesh : public btTriangleIndexVertexArray { - btAlignedObjectArray<btVector3> m_vertices; - btAlignedObjectArray<int> m_indices; + btAlignedObjectArray<btVector3> m_4componentVertices; + btAlignedObjectArray<float> m_3componentVertices; + + btAlignedObjectArray<unsigned int> m_32bitIndices; + btAlignedObjectArray<unsigned short int> m_16bitIndices; + bool m_use32bitIndices; + bool m_use4componentVertices; + public: - btTriangleMesh (); + btScalar m_weldingThreshold; + + btTriangleMesh (bool use32bitIndices=true,bool use4componentVertices=true); - void addTriangle(const btVector3& vertex0,const btVector3& vertex1,const btVector3& vertex2) + int findOrAddVertex(const btVector3& vertex); + void addIndex(int index); + + bool getUse32bitIndices() const { - int curIndex = m_indices.size(); - m_vertices.push_back(vertex0); - m_vertices.push_back(vertex1); - m_vertices.push_back(vertex2); - - m_indices.push_back(curIndex++); - m_indices.push_back(curIndex++); - m_indices.push_back(curIndex++); + return m_use32bitIndices; } - int getNumTriangles() const + bool getUse4componentVertices() const { - return m_indices.size() / 3; + return m_use4componentVertices; } - - -//StridingMeshInterface interface implementation - - virtual void getLockedVertexIndexBase(unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& stride,unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart=0); - - virtual void getLockedReadOnlyVertexIndexBase(const unsigned char **vertexbase, int& numverts,PHY_ScalarType& type, int& stride,const unsigned char **indexbase,int & indexstride,int& numfaces,PHY_ScalarType& indicestype,int subpart=0) const; - - /// unLockVertexBase finishes the access to a subpart of the triangle mesh - /// make a call to unLockVertexBase when the read and write access (using getLockedVertexIndexBase) is finished - virtual void unLockVertexBase(int subpart) {(void) subpart;} - - virtual void unLockReadOnlyVertexBase(int subpart) const { (void) subpart;} - - /// getNumSubParts returns the number of seperate subparts - /// each subpart has a continuous array of vertices and indices - virtual int getNumSubParts() const; + void addTriangle(const btVector3& vertex0,const btVector3& vertex1,const btVector3& vertex2); + int getNumTriangles() const; + virtual void preallocateVertices(int numverts){(void) numverts;} virtual void preallocateIndices(int numindices){(void) numindices;} |