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