129 lines
4.3 KiB
C++
129 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_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( ViewDependentShadow, MinimalDrawBoundsShadowMap );
|
|
|
|
protected:
|
|
/** Classic protected OSG destructor */
|
|
virtual ~MinimalDrawBoundsShadowMap(void);
|
|
|
|
struct 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::ref_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::ref_ptr< osg::NodeCallback > _nc;
|
|
osg::observer_ptr< ViewData > _vd;
|
|
};
|
|
};
|
|
|
|
} // namespace osgShadow
|
|
|
|
#endif
|