Ogre::FocusedShadowCameraSetup Class Reference

Implements the uniform shadow mapping algorithm in focused mode. More...

#include <OgreShadowCameraSetupFocused.h>

Inheritance diagram for Ogre::FocusedShadowCameraSetup:

Public Member Functions
	FocusedShadowCameraSetup (void)
	Default constructor. More...
virtual	~FocusedShadowCameraSetup (void)
	Default destructor. More...
virtual void	getShadowCamera (const SceneManager *sm, const Camera *cam, const Viewport *vp, const Light *light, Camera *texCam, size_t iteration) const
	Returns a uniform shadow camera with a focused view. More...
bool	getUseAggressiveFocusRegion () const
void	setUseAggressiveFocusRegion (bool aggressive)
	Sets whether or not to use the more aggressive approach to deciding on the focus region or not. More...

Detailed Description

Implements the uniform shadow mapping algorithm in focused mode.

Remarks

Differs from the default shadow mapping projection in that it focuses the shadow map on the visible areas of the scene. This results in better shadow map texel usage, at the expense of some 'swimming' of the shadow texture on receivers as the basis is constantly being reevaluated.

Note

Original implementation by Matthias Fink matth.nosp@m.ias..nosp@m.fink@.nosp@m.web..nosp@m.de, 2006.

Constructor & Destructor Documentation

FocusedShadowCameraSetup()

Ogre::FocusedShadowCameraSetup::FocusedShadowCameraSetup

(

void

)

Default constructor.

Remarks

Temporary frustum and camera set up here.

~FocusedShadowCameraSetup()

virtual Ogre::FocusedShadowCameraSetup::~FocusedShadowCameraSetup ( void  )

virtual

Default destructor.

Remarks

Temporary frustum and camera destroyed here.

Member Function Documentation

getShadowCamera()

virtual void Ogre::FocusedShadowCameraSetup::getShadowCamera ( const SceneManager *  sm, const Camera *  cam, const Viewport *  vp, const Light *  light, Camera *  texCam, size_t  iteration  ) const

virtual

Returns a uniform shadow camera with a focused view.

Implements Ogre::ShadowCameraSetup.

Reimplemented in Ogre::LiSPSMShadowCameraSetup, and Ogre::PSSMShadowCameraSetup.

setUseAggressiveFocusRegion()

void Ogre::FocusedShadowCameraSetup::setUseAggressiveFocusRegion ( bool  aggressive )

inline

Sets whether or not to use the more aggressive approach to deciding on the focus region or not.

Note

There are 2 approaches that can be used to define the focus region, the more aggressive way introduced by Wimmer et al, or the original way as described in Stamminger et al. Wimmer et al's way tends to come up with a tighter focus region but in rare cases (mostly highly glancing angles) can cause some shadow casters to be clipped incorrectly. By default the more aggressive approach is used since it leads to significantly better results in most cases, but if you experience clipping issues, you can use the less aggressive version.

Parameters

aggressive

True to use the more aggressive approach, false otherwise.

getUseAggressiveFocusRegion()

bool Ogre::FocusedShadowCameraSetup::getUseAggressiveFocusRegion ( ) const

inline

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

• OgreShadowCameraSetupFocused.h