osgShadow::SoftShadowMap Class Reference

Inheritance diagram for osgShadow::SoftShadowMap:


Public Member Functions
	SoftShadowMap ()
	SoftShadowMap (const SoftShadowMap &es, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
	META_Object (osgShadow, SoftShadowMap)
void	setTextureUnit (unsigned int unit)
unsigned int	getTextureUnit () const
void	setAmbientBias (const osg::Vec2 &ambientBias)
void	setSoftnessWidth (const float softnesswidth)
void	setJitteringScale (const float jitteringscale)
const osg::Vec2 &	getAmbientBias () const
const float	getSoftnessWidth () const
const float	getJitteringScale () const
virtual void	init ()
virtual void	update (osg::NodeVisitor &nv)
virtual void	cull (osgUtil::CullVisitor &cv)
virtual void	cleanSceneGraph ()
Protected Member Functions
virtual	~SoftShadowMap ()
void	initJittering (osg::StateSet *)
Protected Attributes
osg::ref_ptr< osg::Camera >	_camera
osg::ref_ptr< osg::TexGen >	_texgen
osg::ref_ptr< osg::Texture2D >	_texture
osg::ref_ptr< osg::StateSet >	_stateset
unsigned int	_textureUnit
osg::Vec2	_ambientBias
float	_softnesswidth
float	_jitteringscale

Detailed Description

SoftShadowMap provides an implementation of soft shadows with shadow maps.

Constructor & Destructor Documentation

osgShadow::SoftShadowMap::SoftShadowMap ( )

osgShadow::SoftShadowMap::SoftShadowMap	(	const SoftShadowMap &	es,
		const osg::CopyOp &	copyop = `osg::CopyOp::SHALLOW_COPY`
	)

virtual osgShadow::SoftShadowMap::~SoftShadowMap ( ) [inline, protected, virtual]

Member Function Documentation

osgShadow::SoftShadowMap::META_Object	(	osgShadow	,
		SoftShadowMap
	)

void osgShadow::SoftShadowMap::setTextureUnit ( unsigned int unit )

Set the texture unit that the shadow texture will be applied on.

unsigned int osgShadow::SoftShadowMap::getTextureUnit ( ) const [inline]

Get the texture unit that the shadow texture will be applied on.

void osgShadow::SoftShadowMap::setAmbientBias ( const osg::Vec2 & ambientBias )

Set the values for the ambient bias the shader will use.

void osgShadow::SoftShadowMap::setSoftnessWidth ( const float softnesswidth )

Set the values for width of the soft penumbra the shader will use. Zero is for hard shadow (no penumbra). 0.01 is already very soft penumbra. Default is 0.005.

void osgShadow::SoftShadowMap::setJitteringScale ( const float jitteringscale )

Set the values for jittering scale the shader will use. Zero is no jittering (i.e. see the banding in penumbra) High values (>64) cause 'pixelization' of the penumbra. Usually but not necessarily power of two number. Default is 32.

const osg::Vec2& osgShadow::SoftShadowMap::getAmbientBias ( ) const [inline]

Get the values that are used for the ambient bias in the shader.

const float osgShadow::SoftShadowMap::getSoftnessWidth ( ) const [inline]

Get the value used for width of the soft penumbra in the shader.

const float osgShadow::SoftShadowMap::getJitteringScale ( ) const [inline]

Get the value used for jittering scale in the shader.

virtual void osgShadow::SoftShadowMap::init ( ) [virtual]

initialize the ShadowedScene and local cached data structures.

Reimplemented from osgShadow::ShadowTechnique.

virtual void osgShadow::SoftShadowMap::update ( osg::NodeVisitor & nv ) [virtual]

run the update traversal of the ShadowedScene and update any loca chached data structures.

Reimplemented from osgShadow::ShadowTechnique.