class SG_EXPORT osg::ShadowVolumeOccluder

ShadowVolumeOccluder is a helper class for implementating shadow occlusion culling.

Public Methods

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.

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)

inline void disableResultMasks()

inline void pushCurrentMask()

inline void popCurrentMask()

Public Members

typedef std::vector<Polytope> HoleList

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.

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

inline void disableResultMasks()

inline void pushCurrentMask()

inline void popCurrentMask()

This class has no child classes.

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