129 lines
4.3 KiB
C++
129 lines
4.3 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_MINIMALDRAWBOUNDSSHADOWMAP
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#define OSGSHADOW_MINIMALDRAWBOUNDSSHADOWMAP 1
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#include <osgShadow/MinimalShadowMap>
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namespace osgShadow {
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class OSGSHADOW_EXPORT MinimalDrawBoundsShadowMap
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: public MinimalShadowMap
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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 MinimalDrawBoundsShadowMap ThisClass;
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/** Convenient typedef used in definition of ViewData struct and methods */
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typedef MinimalShadowMap BaseClass;
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/** Classic OSG constructor */
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MinimalDrawBoundsShadowMap();
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/** Classic OSG cloning constructor */
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MinimalDrawBoundsShadowMap(
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const MinimalDrawBoundsShadowMap& mdbsm,
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const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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/** Declaration of standard OSG object methods */
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META_Object( ViewDependentShadow, MinimalDrawBoundsShadowMap );
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protected:
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/** Classic protected OSG destructor */
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virtual ~MinimalDrawBoundsShadowMap(void);
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struct OSGSHADOW_EXPORT ViewData: public BaseClass::ViewData
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{
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osg::ref_ptr< osg::RefMatrix > _projection;
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osg::Vec2s _boundAnalysisSize;
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osg::ref_ptr< osg::Image > _boundAnalysisImage;
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osg::ref_ptr< osg::Texture2D > _boundAnalysisTexture;
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osg::ref_ptr< osg::Camera > _boundAnalysisCamera;
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osg::ref_ptr< osg::Camera > _mainCamera;
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void setShadowCameraProjectionMatrixPtr( osg::RefMatrix * projection )
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{ _projection = projection; }
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osg::RefMatrix * getShadowCameraProjectionMatrixPtr( void )
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{ return _projection.get(); }
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virtual void init( ThisClass * st, osgUtil::CullVisitor * cv );
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virtual void cullShadowReceivingScene( );
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virtual void createDebugHUD( );
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virtual void recordShadowMapParams( );
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virtual void cullBoundAnalysisScene( );
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static osg::BoundingBox scanImage( const osg::Image * image, osg::Matrix m );
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virtual void performBoundAnalysis( const osg::Camera& camera );
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ViewData( void ): _boundAnalysisSize( 64, 64 ) {}
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};
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friend struct ViewData;
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META_ViewDependentShadowTechniqueData( ThisClass, ThisClass::ViewData )
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struct CameraPostDrawCallback : public osg::Camera::DrawCallback {
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CameraPostDrawCallback( ViewData * vd ): _vd( vd )
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{
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}
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virtual void operator ()( const osg::Camera& camera ) const
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{
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if( _vd.valid() )
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_vd->performBoundAnalysis( camera );
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}
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osg::observer_ptr< ViewData > _vd;
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};
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struct CameraCullCallback: public osg::NodeCallback {
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CameraCullCallback(ViewData * vd, osg::NodeCallback * nc): _vd(vd), _nc(nc)
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{
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}
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virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
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{
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osgUtil::CullVisitor *cv = dynamic_cast< osgUtil::CullVisitor *>( nv );
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if( _nc.valid() )
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_nc->operator()(node,nv);
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else
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traverse(node,nv);
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if( cv )
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_vd->recordShadowMapParams( );
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}
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protected:
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osg::observer_ptr< ViewData > _vd;
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osg::ref_ptr< osg::NodeCallback > _nc;
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};
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};
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} // namespace osgShadow
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#endif
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