btBvhTriangleMeshShape Class Reference

The btBvhTriangleMeshShape is a static-triangle mesh shape with several optimizations, such as bounding volume hierarchy and cache friendly traversal for PlayStation 3 Cell SPU. More...

#include <btBvhTriangleMeshShape.h>

Inheritance diagram for btBvhTriangleMeshShape:

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Collaboration diagram for btBvhTriangleMeshShape:

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List of all members.

Public Member Functions
	BT_DECLARE_ALIGNED_ALLOCATOR ()
	btBvhTriangleMeshShape ()
	btBvhTriangleMeshShape (btStridingMeshInterface *meshInterface, bool useQuantizedAabbCompression, bool buildBvh=true)
	Bvh Concave triangle mesh is a static-triangle mesh shape with Bounding Volume Hierarchy optimization.
	btBvhTriangleMeshShape (btStridingMeshInterface *meshInterface, bool useQuantizedAabbCompression, const btVector3 &bvhAabbMin, const btVector3 &bvhAabbMax, bool buildBvh=true)
	optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
virtual	~btBvhTriangleMeshShape ()
bool	getOwnsBvh () const
void	performRaycast (btTriangleCallback *callback, const btVector3 &raySource, const btVector3 &rayTarget)
void	performConvexcast (btTriangleCallback *callback, const btVector3 &boxSource, const btVector3 &boxTarget, const btVector3 &boxMin, const btVector3 &boxMax)
virtual void	processAllTriangles (btTriangleCallback *callback, const btVector3 &aabbMin, const btVector3 &aabbMax) const
void	refitTree (const btVector3 &aabbMin, const btVector3 &aabbMax)
void	partialRefitTree (const btVector3 &aabbMin, const btVector3 &aabbMax)
	for a fast incremental refit of parts of the tree. Note: the entire AABB of the tree will become more conservative, it never shrinks
virtual const char *	getName () const
virtual void	setLocalScaling (const btVector3 &scaling)
btOptimizedBvh *	getOptimizedBvh ()
void	setOptimizedBvh (btOptimizedBvh *bvh, const btVector3 &localScaling=btVector3(1, 1, 1))
void	buildOptimizedBvh ()
bool	usesQuantizedAabbCompression () const
Private Attributes
btOptimizedBvh *	m_bvh
bool	m_useQuantizedAabbCompression
bool	m_ownsBvh
bool	m_pad [11]

Detailed Description

The btBvhTriangleMeshShape is a static-triangle mesh shape with several optimizations, such as bounding volume hierarchy and cache friendly traversal for PlayStation 3 Cell SPU.

It is recommended to enable useQuantizedAabbCompression for better memory usage. It takes a triangle mesh as input, for example a btTriangleMesh or btTriangleIndexVertexArray. The btBvhTriangleMeshShape class allows for triangle mesh deformations by a refit or partialRefit method. Instead of building the bounding volume hierarchy acceleration structure, it is also possible to serialize (save) and deserialize (load) the structure from disk. See Demos\ConcaveDemo\ConcavePhysicsDemo.cpp for an example.

Definition at line 28 of file btBvhTriangleMeshShape.h.

Constructor & Destructor Documentation

btBvhTriangleMeshShape::btBvhTriangleMeshShape ( ) [inline]

Definition at line 40 of file btBvhTriangleMeshShape.h.

btBvhTriangleMeshShape::btBvhTriangleMeshShape	(	btStridingMeshInterface *	meshInterface,
		bool	useQuantizedAabbCompression,
		bool	buildBvh = `true`
	)

Bvh Concave triangle mesh is a static-triangle mesh shape with Bounding Volume Hierarchy optimization.

Uses an interface to access the triangles to allow for sharing graphics/physics triangles.

Definition at line 23 of file btBvhTriangleMeshShape.cpp.

btBvhTriangleMeshShape::btBvhTriangleMeshShape	(	btStridingMeshInterface *	meshInterface,
		bool	useQuantizedAabbCompression,
		const btVector3 &	bvhAabbMin,
		const btVector3 &	bvhAabbMax,
		bool	buildBvh = `true`
	)

optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb

Definition at line 42 of file btBvhTriangleMeshShape.cpp.

btBvhTriangleMeshShape::~btBvhTriangleMeshShape ( ) [virtual]

Definition at line 81 of file btBvhTriangleMeshShape.cpp.

Member Function Documentation

btBvhTriangleMeshShape::BT_DECLARE_ALIGNED_ALLOCATOR ( )

Reimplemented in btMultimaterialTriangleMeshShape.

void btBvhTriangleMeshShape::buildOptimizedBvh ( )

m_localAabbMin/m_localAabbMax is already re-calculated in btTriangleMeshShape. We could just scale aabb, but this needs some more work

Definition at line 337 of file btBvhTriangleMeshShape.cpp.

virtual const char* btBvhTriangleMeshShape::getName ( ) const [inline, virtual]

Reimplemented from btTriangleMeshShape.

Reimplemented in btMultimaterialTriangleMeshShape.

Definition at line 66 of file btBvhTriangleMeshShape.h.

btOptimizedBvh* btBvhTriangleMeshShape::getOptimizedBvh ( ) [inline]

Definition at line 71 of file btBvhTriangleMeshShape.h.

bool btBvhTriangleMeshShape::getOwnsBvh ( ) const [inline]

Definition at line 48 of file btBvhTriangleMeshShape.h.

void btBvhTriangleMeshShape::partialRefitTree	(	const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)

for a fast incremental refit of parts of the tree. Note: the entire AABB of the tree will become more conservative, it never shrinks

Definition at line 65 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::performConvexcast	(	btTriangleCallback *	callback,
		const btVector3 &	boxSource,
		const btVector3 &	boxTarget,
		const btVector3 &	boxMin,
		const btVector3 &	boxMax
	)

Definition at line 159 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::performRaycast	(	btTriangleCallback *	callback,
		const btVector3 &	raySource,
		const btVector3 &	rayTarget
	)

Definition at line 90 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::processAllTriangles	(	btTriangleCallback *	callback,
		const btVector3 &	aabbMin,
		const btVector3 &	aabbMax
	)			const `[virtual]`