btTriangleMesh Class Reference

#include <btTriangleMesh.h>

Public Member Functions
void	addIndex (int index)
	addIndex is an internal method, use addTriangle instead
void	addTriangle (const btVector3 &vertex0, const btVector3 &vertex1, const btVector3 &vertex2, bool removeDuplicateVertices=false)
	btTriangleMesh (bool use32bitIndices=true, bool use4componentVertices=true)
int	findOrAddVertex (const btVector3 &vertex, bool removeDuplicateVertices)
	findOrAddVertex is an internal method, use addTriangle instead
int	getNumTriangles () const
bool	getUse32bitIndices () const
bool	getUse4componentVertices () const
virtual void	preallocateIndices (int numindices)
virtual void	preallocateVertices (int numverts)
Public Attributes
btScalar	m_weldingThreshold
Private Attributes
btAlignedObjectArray< unsigned short int >	m_16bitIndices
btAlignedObjectArray< unsigned int >	m_32bitIndices
btAlignedObjectArray< float >	m_3componentVertices
btAlignedObjectArray< btVector3 >	m_4componentVertices
bool	m_use32bitIndices
bool	m_use4componentVertices

Detailed Description

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.

Constructor & Destructor Documentation

btTriangleMesh::btTriangleMesh	(	bool	use32bitIndices = `true`,
		bool	use4componentVertices = `true`
	)

Member Function Documentation

void btTriangleMesh::addIndex ( int index )

addIndex is an internal method, use addTriangle instead

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.