79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2009 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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#ifndef OSGVOLUMESCENE
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#define OSGVOLUMESCENE 1
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#include <osg/Group>
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#include <osg/Texture2D>
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#include <osgUtil/CullVisitor>
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#include <osgVolume/VolumeTile>
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namespace osgVolume {
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/** VolumeScene provides high level support for doing multi-pass rendering of volumes where the main scene to rendered to color and depth textures and then re-rendered for the purposes of volume rendering.*/
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class OSGVOLUME_EXPORT VolumeScene : public osg::Group
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{
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public:
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VolumeScene();
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/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
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VolumeScene(const VolumeScene&,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
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META_Node(osgVolume, VolumeScene);
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virtual void traverse(osg::NodeVisitor& nv);
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TileData* tileVisited(osgUtil::CullVisitor* cv, VolumeTile* tile);
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TileData* getTileData(osgUtil::CullVisitor* cv, VolumeTile* tile);
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protected:
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virtual ~VolumeScene();
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typedef std::map< VolumeTile*, osg::ref_ptr<TileData> > Tiles;
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class ViewData : public osg::Referenced
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{
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public:
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ViewData();
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void clearTiles();
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void visitTile(VolumeTile* tile);
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osg::ref_ptr<osg::Texture2D> _depthTexture;
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osg::ref_ptr<osg::Texture2D> _colorTexture;
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osg::ref_ptr<osg::Camera> _rttCamera;
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osg::ref_ptr<osg::Node> _backdropSubgraph;
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osg::ref_ptr<osg::Geometry> _geometry;
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osg::ref_ptr<osg::Vec3Array> _vertices;
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osg::ref_ptr<osg::StateSet> _stateset;
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osg::ref_ptr<osg::Uniform> _viewportDimensionsUniform;
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Tiles _tiles;
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protected:
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virtual ~ViewData() {}
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};
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typedef std::map< osgUtil::CullVisitor*, osg::ref_ptr<ViewData> > ViewDataMap;
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OpenThreads::Mutex _viewDataMapMutex;
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ViewDataMap _viewDataMap;
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};
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}
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#endif
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