class SG_EXPORT osg::ShadowVolumeOccluder

ShadowVolumeOccluder is a helper class for implementating shadow occlusion culling.

Public Methods

typedef std::vector<Polytope> HoleList ShadowVolumeOccluder(const ShadowVolumeOccluder& svo)

ShadowVolumeOccluder()

bool operator < (const ShadowVolumeOccluder& svo) const

bool computeOccluder(const NodePath& nodePath, const ConvexPlanarOccluder& occluder, CullStack& cullStack, bool createDrawables=false)

compute the shadow volume occluder.

inline void disableResultMasks()

bool matchProjectionMatrix(const osg::Matrix& matrix) const

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

inline void setNodePath(NodePath& nodePath)

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

inline NodePath& getNodePath()

inline const NodePath& getNodePath() const

float getVolume() const

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

Polytope& getOccluder()

return the occluder polytope

const Polytope& getOccluder() const

return the const occluder polytope

HoleList& getHoleList()

return the list of holes

const HoleList& getHoleList() const

return the const list of holes

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

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

bool contains(const BoundingSphere& bound)

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

bool contains(const BoundingBox& bound)

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

inline void transformProvidingInverse(const osg::Matrix& matrix)

typedef std::vector<ShadowVolumeOccluder>inline ShadowVolumeOccluderList void disableResultMasks()

A list of ShadowVolumeOccluder, used by CollectOccluderVisitor and CullVistor's

inline void pushCurrentMask()

inline void popCurrentMask()

Protected Fields

float _volume

NodePath _nodePath

ref_ptr<const Matrix> _projectionMatrix

Polytope _occluderVolume

HoleList _holeList

Documentation

ShadowVolumeOccluder is a helper class for implementating shadow occlusion culling.

typedef std::vector<Polytope> HoleList ShadowVolumeOccluder(const ShadowVolumeOccluder& svo)

ShadowVolumeOccluder()

bool operator < (const ShadowVolumeOccluder& svo) const

bool computeOccluder(const NodePath& nodePath, const ConvexPlanarOccluder& occluder, CullStack& cullStack, bool createDrawables=false)

compute the shadow volume occluder.

inline void disableResultMasks()

bool matchProjectionMatrix(const osg::Matrix& matrix) const

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

inline void setNodePath(NodePath& nodePath)

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

inline NodePath& getNodePath()

inline const NodePath& getNodePath() const

float getVolume() const

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

Polytope& getOccluder()

return the occluder polytope

const Polytope& getOccluder() const

return the const occluder polytope

HoleList& getHoleList()

return the list of holes

const HoleList& getHoleList() const

return the const list of holes

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

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

bool contains(const BoundingSphere& bound)

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

bool contains(const BoundingBox& bound)

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

inline void transformProvidingInverse(const osg::Matrix& matrix)

float _volume

NodePath _nodePath

ref_ptr<const Matrix> _projectionMatrix

Polytope _occluderVolume

HoleList _holeList

typedef std::vector<ShadowVolumeOccluder>inline ShadowVolumeOccluderList void disableResultMasks()

A list of ShadowVolumeOccluder, used by CollectOccluderVisitor and CullVistor's

inline void pushCurrentMask()

inline void popCurrentMask()

This class has no child classes.

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