Public Member Functions | Private Attributes

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>

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List of all members.

Public Member Functions

 BT_DECLARE_ALIGNED_ALLOCATOR ()
 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)
btOptimizedBvhgetOptimizedBvh ()
void setOptimizedBvh (btOptimizedBvh *bvh, const btVector3 &localScaling=btVector3(1, 1, 1))
void buildOptimizedBvh ()
bool usesQuantizedAabbCompression () const
void setTriangleInfoMap (btTriangleInfoMap *triangleInfoMap)
const btTriangleInfoMapgetTriangleInfoMap () const
btTriangleInfoMapgetTriangleInfoMap ()
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)
virtual void serializeSingleBvh (btSerializer *serializer) const
virtual void serializeSingleTriangleInfoMap (btSerializer *serializer) const

Private Attributes

btOptimizedBvhm_bvh
btTriangleInfoMapm_triangleInfoMap
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 ( 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 24 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 44 of file btBvhTriangleMeshShape.cpp.

btBvhTriangleMeshShape::~btBvhTriangleMeshShape (  )  [virtual]

Definition at line 84 of file btBvhTriangleMeshShape.cpp.


Member Function Documentation

btBvhTriangleMeshShape::BT_DECLARE_ALIGNED_ALLOCATOR (  ) 

Reimplemented from btTriangleMeshShape.

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 340 of file btBvhTriangleMeshShape.cpp.

int btBvhTriangleMeshShape::calculateSerializeBufferSize (  )  const [inline, virtual]

Reimplemented from btCollisionShape.

Definition at line 132 of file btBvhTriangleMeshShape.h.

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

Reimplemented from btTriangleMeshShape.

Reimplemented in btMultimaterialTriangleMeshShape.

Definition at line 68 of file btBvhTriangleMeshShape.h.

btOptimizedBvh* btBvhTriangleMeshShape::getOptimizedBvh (  )  [inline]

Definition at line 73 of file btBvhTriangleMeshShape.h.

bool btBvhTriangleMeshShape::getOwnsBvh (  )  const [inline]

Definition at line 50 of file btBvhTriangleMeshShape.h.

btTriangleInfoMap* btBvhTriangleMeshShape::getTriangleInfoMap (  )  [inline]

Definition at line 97 of file btBvhTriangleMeshShape.h.

const btTriangleInfoMap* btBvhTriangleMeshShape::getTriangleInfoMap (  )  const [inline]

Definition at line 92 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 68 of file btBvhTriangleMeshShape.cpp.

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

Definition at line 162 of file btBvhTriangleMeshShape.cpp.

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

Definition at line 93 of file btBvhTriangleMeshShape.cpp.

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

Reimplemented from btTriangleMeshShape.

Definition at line 232 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::refitTree ( const btVector3 aabbMin,
const btVector3 aabbMax 
)

Definition at line 77 of file btBvhTriangleMeshShape.cpp.

const char * btBvhTriangleMeshShape::serialize ( void *  dataBuffer,
btSerializer serializer 
) const [virtual]

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

Reimplemented from btCollisionShape.

Definition at line 372 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::serializeSingleBvh ( btSerializer serializer  )  const [virtual]

Definition at line 442 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::serializeSingleTriangleInfoMap ( btSerializer serializer  )  const [virtual]

Definition at line 453 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::setLocalScaling ( const btVector3 scaling  )  [virtual]

Reimplemented from btTriangleMeshShape.

Definition at line 331 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::setOptimizedBvh ( btOptimizedBvh bvh,
const btVector3 localScaling = btVector3(1,1,1) 
)

Definition at line 355 of file btBvhTriangleMeshShape.cpp.

void btBvhTriangleMeshShape::setTriangleInfoMap ( btTriangleInfoMap triangleInfoMap  )  [inline]

Definition at line 87 of file btBvhTriangleMeshShape.h.

bool btBvhTriangleMeshShape::usesQuantizedAabbCompression (  )  const [inline]

Definition at line 82 of file btBvhTriangleMeshShape.h.


Member Data Documentation

Definition at line 31 of file btBvhTriangleMeshShape.h.

Definition at line 35 of file btBvhTriangleMeshShape.h.

bool btBvhTriangleMeshShape::m_pad[11] [private]

Definition at line 36 of file btBvhTriangleMeshShape.h.

Definition at line 32 of file btBvhTriangleMeshShape.h.

Definition at line 34 of file btBvhTriangleMeshShape.h.


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