osg::ShadowVolumeOccluder Class Reference

List of all members.

Public Types

typedef std::vector< PolytopeHoleList

Public Member Functions

 ShadowVolumeOccluder (const ShadowVolumeOccluder &svo)
 ShadowVolumeOccluder ()
bool operator< (const ShadowVolumeOccluder &svo) const
bool computeOccluder (const NodePath &nodePath, const ConvexPlanarOccluder &occluder, CullStack &cullStack, bool createDrawables=false)
void disableResultMasks ()
void pushCurrentMask ()
void popCurrentMask ()
bool matchProjectionMatrix (const osg::Matrix &matrix) const
void setNodePath (NodePath &nodePath)
NodePathgetNodePath ()
const NodePathgetNodePath () const
float getVolume () const
PolytopegetOccluder ()
const PolytopegetOccluder () const
HoleListgetHoleList ()
const HoleListgetHoleList () const
bool contains (const std::vector< Vec3 > &vertices)
bool contains (const BoundingSphere &bound)
bool contains (const BoundingBox &bound)
void transformProvidingInverse (const osg::Matrix &matrix)

Protected Attributes

float _volume
NodePath _nodePath
ref_ptr< const RefMatrix_projectionMatrix
Polytope _occluderVolume
HoleList _holeList


Detailed Description

ShadowVolumeOccluder is a helper class for implementing shadow occlusion culling.

Member Typedef Documentation


Constructor & Destructor Documentation

osg::ShadowVolumeOccluder::ShadowVolumeOccluder ( const ShadowVolumeOccluder svo  )  [inline]

osg::ShadowVolumeOccluder::ShadowVolumeOccluder (  )  [inline]


Member Function Documentation

bool osg::ShadowVolumeOccluder::operator< ( const ShadowVolumeOccluder svo  )  const [inline]

References getVolume().

bool osg::ShadowVolumeOccluder::computeOccluder ( const NodePath nodePath,
const ConvexPlanarOccluder occluder,
CullStack cullStack,
bool  createDrawables = false 
)

compute the shadow volume occluder.

void osg::ShadowVolumeOccluder::disableResultMasks (  )  [inline]

void osg::ShadowVolumeOccluder::pushCurrentMask (  )  [inline]

void osg::ShadowVolumeOccluder::popCurrentMask (  )  [inline]

bool osg::ShadowVolumeOccluder::matchProjectionMatrix ( const osg::Matrix matrix  )  const [inline]

return true if the matrix passed in matches the projection matrix that this ShadowVolumeOccluder is associated with.

void osg::ShadowVolumeOccluder::setNodePath ( NodePath nodePath  )  [inline]

Set the NodePath which describes which node in the scene graph that this occluder is attached to.

NodePath& osg::ShadowVolumeOccluder::getNodePath (  )  [inline]

const NodePath& osg::ShadowVolumeOccluder::getNodePath (  )  const [inline]

float osg::ShadowVolumeOccluder::getVolume (  )  const [inline]

get the volume of the occluder minus its holes, in eye coords, the volume is normalized by dividing by the volume of the view frustum in eye coords.

Referenced by operator<().

Polytope& osg::ShadowVolumeOccluder::getOccluder (  )  [inline]

return the occluder polytope.

const Polytope& osg::ShadowVolumeOccluder::getOccluder (  )  const [inline]

return the const occluder polytope.

HoleList& osg::ShadowVolumeOccluder::getHoleList (  )  [inline]

return the list of holes.

const HoleList& osg::ShadowVolumeOccluder::getHoleList (  )  const [inline]

return the const list of holes.

bool osg::ShadowVolumeOccluder::contains ( const std::vector< Vec3 > &  vertices  ) 

return true if the specified vertex list is contained entirely within this shadow occluder volume.

bool osg::ShadowVolumeOccluder::contains ( const BoundingSphere bound  ) 

return true if the specified bounding sphere is contained entirely within this shadow occluder volume.

bool osg::ShadowVolumeOccluder::contains ( const BoundingBox bound  ) 

return true if the specified bounding box is contained entirely within this shadow occluder volume.

void osg::ShadowVolumeOccluder::transformProvidingInverse ( const osg::Matrix matrix  )  [inline]


Member Data Documentation


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

Generated on Wed Aug 13 17:03:34 2008 for openscenegraph by  doxygen 1.5.6