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