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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*
* ViewDependentShadow codes Copyright (C) 2008 Wojciech Lewandowski
* Thanks to to my company http://www.ai.com.pl for allowing me free this work.
*/
#ifndef OSGSHADOW_LIGHTSPACEPERSPECTIVESHADOWMAP
#define OSGSHADOW_LIGHTSPACEPERSPECTIVESHADOWMAP 1
#include <osgShadow/MinimalCullBoundsShadowMap>
#include <osgShadow/MinimalDrawBoundsShadowMap>
#include <osgShadow/ProjectionShadowMap>
namespace osgShadow {
// Class implements
// "Light Space Perspective Shadow Maps" algorithm by
// Michael Wimmer, Daniel Scherzer, Werner Purgathofer
// http://www.cg.tuwien.ac.at/research/vr/lispsm/
class LispSM;
class OSGSHADOW_EXPORT LightSpacePerspectiveShadowMapAlgorithm
{
public:
LightSpacePerspectiveShadowMapAlgorithm();
~LightSpacePerspectiveShadowMapAlgorithm();
void operator() (
const osgShadow::ConvexPolyhedron* hullShadowedView,
const osg::Camera* cameraMain,
osg::Camera* cameraShadow ) const;
protected:
LispSM * lispsm;
};
// Optimized for draw traversal shadow bounds
class OSGSHADOW_EXPORT LightSpacePerspectiveShadowMapDB: public ProjectionShadowMap< MinimalDrawBoundsShadowMap, LightSpacePerspectiveShadowMapAlgorithm >
{
public:
/** Convenient typedef used in definition of ViewData struct and methods */
typedef ProjectionShadowMap< MinimalDrawBoundsShadowMap, LightSpacePerspectiveShadowMapAlgorithm > BaseClass;
/** Classic OSG constructor */
LightSpacePerspectiveShadowMapDB()
{
}
/** Classic OSG cloning constructor */
LightSpacePerspectiveShadowMapDB(
const LightSpacePerspectiveShadowMapDB& copy,
const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : BaseClass(copy,copyop)
{
}
/** Declaration of standard OSG object methods */
META_Object( osgShadow, LightSpacePerspectiveShadowMapDB );
};
// Optimized for cull traversal shadow bounds
class OSGSHADOW_EXPORT LightSpacePerspectiveShadowMapCB: public ProjectionShadowMap< MinimalCullBoundsShadowMap, LightSpacePerspectiveShadowMapAlgorithm >
{
public:
/** Convenient typedef used in definition of ViewData struct and methods */
typedef ProjectionShadowMap< MinimalCullBoundsShadowMap, LightSpacePerspectiveShadowMapAlgorithm > BaseClass;
/** Classic OSG constructor */
LightSpacePerspectiveShadowMapCB()
{
}
/** Classic OSG cloning constructor */
LightSpacePerspectiveShadowMapCB(
const LightSpacePerspectiveShadowMapCB& copy,
const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : BaseClass(copy,copyop)
{
}
/** Declaration of standard OSG object methods */
META_Object( osgShadow, LightSpacePerspectiveShadowMapCB );
};
// Optimized for view frustum bounds
class OSGSHADOW_EXPORT LightSpacePerspectiveShadowMapVB: public ProjectionShadowMap< MinimalShadowMap, LightSpacePerspectiveShadowMapAlgorithm >
{
public:
/** Convenient typedef used in definition of ViewData struct and methods */
typedef ProjectionShadowMap< MinimalShadowMap, LightSpacePerspectiveShadowMapAlgorithm > BaseClass;
/** Classic OSG constructor */
LightSpacePerspectiveShadowMapVB()
{
}
/** Classic OSG cloning constructor */
LightSpacePerspectiveShadowMapVB(
const LightSpacePerspectiveShadowMapVB& copy,
const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : BaseClass(copy,copyop)
{
}
/** Declaration of standard OSG object methods */
META_Object( osgShadow, LightSpacePerspectiveShadowMapVB );
};
typedef LightSpacePerspectiveShadowMapDB LightSpacePerspectiveShadowMap;
} // namespace osgShadow
#endif
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