The btTriangleMesh class is a convenience class derived from btTriangleIndexVertexArray, that provides storage for a concave triangle mesh. More...
#include <btTriangleMesh.h>
Public Member Functions | |
btTriangleMesh (bool use32bitIndices=true, bool use4componentVertices=true) | |
bool | getUse32bitIndices () const |
bool | getUse4componentVertices () const |
void | addTriangle (const btVector3 &vertex0, const btVector3 &vertex1, const btVector3 &vertex2, bool removeDuplicateVertices=false) |
By default addTriangle won't search for duplicate vertices, because the search is very slow for large triangle meshes. | |
int | getNumTriangles () const |
virtual void | preallocateVertices (int numverts) |
virtual void | preallocateIndices (int numindices) |
int | findOrAddVertex (const btVector3 &vertex, bool removeDuplicateVertices) |
findOrAddVertex is an internal method, use addTriangle instead | |
void | addIndex (int index) |
addIndex is an internal method, use addTriangle instead | |
Public Attributes | |
btScalar | m_weldingThreshold |
Private Attributes | |
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 |
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.
Definition at line 27 of file btTriangleMesh.h.
btTriangleMesh::btTriangleMesh | ( | bool | use32bitIndices = true , |
|
bool | use4componentVertices = true | |||
) |
Definition at line 21 of file btTriangleMesh.cpp.
void btTriangleMesh::addIndex | ( | int | index | ) |
addIndex is an internal method, use addTriangle instead
Definition at line 65 of file btTriangleMesh.cpp.
void btTriangleMesh::addTriangle | ( | const btVector3 & | vertex0, | |
const btVector3 & | vertex1, | |||
const btVector3 & | vertex2, | |||
bool | removeDuplicateVertices = false | |||
) |
By default addTriangle won't search for duplicate vertices, because the search is very slow for large triangle meshes.
In general it is better to directly use btTriangleIndexVertexArray instead.
Definition at line 125 of file btTriangleMesh.cpp.
int btTriangleMesh::findOrAddVertex | ( | const btVector3 & | vertex, | |
bool | removeDuplicateVertices | |||
) |
findOrAddVertex is an internal method, use addTriangle instead
Definition at line 79 of file btTriangleMesh.cpp.
int btTriangleMesh::getNumTriangles | ( | ) | const |
Definition at line 133 of file btTriangleMesh.cpp.
bool btTriangleMesh::getUse32bitIndices | ( | ) | const [inline] |
Definition at line 43 of file btTriangleMesh.h.
bool btTriangleMesh::getUse4componentVertices | ( | ) | const [inline] |
Definition at line 48 of file btTriangleMesh.h.
void btTriangleMesh::preallocateIndices | ( | int | numindices | ) | [virtual] |
Reimplemented from btTriangleIndexVertexArray.
Definition at line 153 of file btTriangleMesh.cpp.
void btTriangleMesh::preallocateVertices | ( | int | numverts | ) | [virtual] |
Reimplemented from btTriangleIndexVertexArray.
Definition at line 142 of file btTriangleMesh.cpp.
btAlignedObjectArray<unsigned short int> btTriangleMesh::m_16bitIndices [private] |
Definition at line 33 of file btTriangleMesh.h.
btAlignedObjectArray<unsigned int> btTriangleMesh::m_32bitIndices [private] |
Definition at line 32 of file btTriangleMesh.h.
btAlignedObjectArray<float> btTriangleMesh::m_3componentVertices [private] |
Definition at line 30 of file btTriangleMesh.h.
Definition at line 29 of file btTriangleMesh.h.
bool btTriangleMesh::m_use32bitIndices [private] |
Definition at line 34 of file btTriangleMesh.h.
bool btTriangleMesh::m_use4componentVertices [private] |
Definition at line 35 of file btTriangleMesh.h.
Definition at line 39 of file btTriangleMesh.h.