123 lines
4.3 KiB
C++
123 lines
4.3 KiB
C++
/* -*-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
|