The btStridingMeshInterface is the interface class for high performance generic access to triangle meshes, used in combination with btBvhTriangleMeshShape and some other collision shapes. More...

#include <btStridingMeshInterface.h>

Inheritance diagram for btStridingMeshInterface:

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Collaboration diagram for btStridingMeshInterface:

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Public Member Functions
	BT_DECLARE_ALIGNED_ALLOCATOR ()

	btStridingMeshInterface ()

virtual	~btStridingMeshInterface ()

virtual void	InternalProcessAllTriangles (btInternalTriangleIndexCallback *callback, const btVector3 &aabbMin, const btVector3 &aabbMax) const

void	calculateAabbBruteForce (btVector3 &aabbMin, btVector3 &aabbMax)
	brute force method to calculate aabb More...

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)=0
	get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vertices and indices in this way the mesh can be handled as chunks of memory with striding very similar to OpenGL vertexarray support make a call to unLockVertexBase when the read and write access is finished More...

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 =0

virtual void	unLockVertexBase (int subpart)=0
	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 More...

virtual void	unLockReadOnlyVertexBase (int subpart) const =0

virtual int	getNumSubParts () const =0
	getNumSubParts returns the number of seperate subparts each subpart has a continuous array of vertices and indices More...

virtual void	preallocateVertices (int numverts)=0

virtual void	preallocateIndices (int numindices)=0

virtual bool	hasPremadeAabb () const

virtual void	setPremadeAabb (const btVector3 &aabbMin, const btVector3 &aabbMax) const

virtual void	getPremadeAabb (btVector3 aabbMin, btVector3 aabbMax) const

const btVector3 &	getScaling () const

void	setScaling (const btVector3 &scaling)

virtual int	calculateSerializeBufferSize () const

virtual const char *	serialize (void dataBuffer, btSerializer serializer) const
	fills the dataBuffer and returns the struct name (and 0 on failure) More...

Protected Attributes
btVector3	m_scaling

Detailed Description

The btStridingMeshInterface is the interface class for high performance generic access to triangle meshes, used in combination with btBvhTriangleMeshShape and some other collision shapes.

Using index striding of 3*sizeof(integer) it can use triangle arrays, using index striding of 1*sizeof(integer) it can handle triangle strips. It allows for sharing graphics and collision meshes. Also it provides locking/unlocking of graphics meshes that are in gpu memory.

Definition at line 30 of file btStridingMeshInterface.h.

Constructor & Destructor Documentation

btStridingMeshInterface::btStridingMeshInterface ( )

inline

Definition at line 39 of file btStridingMeshInterface.h.

btStridingMeshInterface::~btStridingMeshInterface ( )

virtual

Definition at line 19 of file btStridingMeshInterface.cpp.

Member Function Documentation

btStridingMeshInterface::BT_DECLARE_ALIGNED_ALLOCATOR ( )

void btStridingMeshInterface::calculateAabbBruteForce	(	btVector3 &	aabbMin,
		btVector3 &	aabbMax
	)

brute force method to calculate aabb

Definition at line 176 of file btStridingMeshInterface.cpp.

int btStridingMeshInterface::calculateSerializeBufferSize ( ) const

inlinevirtual

Definition at line 157 of file btStridingMeshInterface.h.

virtual void btStridingMeshInterface::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

pure virtual

Implemented in btTriangleIndexVertexArray.

virtual void btStridingMeshInterface::getLockedVertexIndexBase	(	unsigned char **	vertexbase,
		int &	numverts,
		PHY_ScalarType &	type,
		int &	stride,
		unsigned char **	indexbase,
		int &	indexstride,
		int &	numfaces,
		PHY_ScalarType &	indicestype,
		int	subpart = `0`
	)

pure virtual

get read and write access to a subpart of a triangle mesh this subpart has a continuous array of vertices and indices in this way the mesh can be handled as chunks of memory with striding very similar to OpenGL vertexarray support make a call to unLockVertexBase when the read and write access is finished

Implemented in btTriangleIndexVertexArray.

virtual int btStridingMeshInterface::getNumSubParts ( ) const

pure virtual

getNumSubParts returns the number of seperate subparts each subpart has a continuous array of vertices and indices

Implemented in btTriangleIndexVertexArray.

virtual void btStridingMeshInterface::getPremadeAabb	(	btVector3 *	aabbMin,
		btVector3 *	aabbMax
	)		const

inlinevirtual

Reimplemented in btTriangleIndexVertexArray.

Definition at line 82 of file btStridingMeshInterface.h.

const btVector3& btStridingMeshInterface::getScaling ( ) const

inline

Definition at line 88 of file btStridingMeshInterface.h.

virtual bool btStridingMeshInterface::hasPremadeAabb ( ) const

inlinevirtual

Reimplemented in btTriangleIndexVertexArray.

Definition at line 76 of file btStridingMeshInterface.h.

void btStridingMeshInterface::InternalProcessAllTriangles	(	btInternalTriangleIndexCallback *	callback,
		const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)		const

virtual

if the number of parts is big, the performance might drop due to the innerloop switch on indextype

unlike that developers want to pass in double-precision meshes in single-precision Bullet build so disable this feature by default see patch http://code.google.com/p/bullet/issues/detail?id=213

Definition at line 25 of file btStridingMeshInterface.cpp.

virtual void btStridingMeshInterface::preallocateIndices ( int numindices )

pure virtual

Implemented in btTriangleIndexVertexArray, and btTriangleMesh.

virtual void btStridingMeshInterface::preallocateVertices ( int numverts )

pure virtual

Implemented in btTriangleIndexVertexArray, and btTriangleMesh.

const char * btStridingMeshInterface::serialize	(	void *	dataBuffer,
		btSerializer *	serializer
	)		const

virtual

fills the dataBuffer and returns the struct name (and 0 on failure)

if the number of parts is big, the performance might drop due to the innerloop switch on indextype

Definition at line 217 of file btStridingMeshInterface.cpp.

virtual void btStridingMeshInterface::setPremadeAabb	(	const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)		const

inlinevirtual

Reimplemented in btTriangleIndexVertexArray.

Definition at line 77 of file btStridingMeshInterface.h.

void btStridingMeshInterface::setScaling ( const btVector3 & scaling )

inline

Definition at line 91 of file btStridingMeshInterface.h.

virtual void btStridingMeshInterface::unLockReadOnlyVertexBase ( int subpart ) const

pure virtual

Implemented in btTriangleIndexVertexArray.

virtual void btStridingMeshInterface::unLockVertexBase ( int subpart )

pure virtual

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

Implemented in btTriangleIndexVertexArray.

Member Data Documentation

btVector3 btStridingMeshInterface::m_scaling

protected

Definition at line 34 of file btStridingMeshInterface.h.

The documentation for this class was generated from the following files:

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation