114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
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/* OpenSceneGraph example, osgmultitexture.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osgViewer/Viewer>
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#include <osg/Notify>
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#include <osg/Texture2D>
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#include <osg/TexEnv>
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#include <osg/TexGen>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgFX/MultiTextureControl>
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#include <osgGA/TerrainManipulator>
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#include <osgUtil/Optimizer>
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#include <iostream>
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template<class T>
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class FindTopMostNodeOfTypeVisitor : public osg::NodeVisitor
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{
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public:
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FindTopMostNodeOfTypeVisitor():
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osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
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_foundNode(0)
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{}
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void apply(osg::Node& node)
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{
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T* result = dynamic_cast<T*>(&node);
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if (result)
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{
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_foundNode = result;
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}
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else
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{
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traverse(node);
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}
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}
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T* _foundNode;
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};
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template<class T>
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T* findTopMostNodeOfType(osg::Node* node)
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{
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if (!node) return 0;
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FindTopMostNodeOfTypeVisitor<T> fnotv;
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node->accept(fnotv);
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return fnotv._foundNode;
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}
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int main( int argc, char **argv )
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{
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// use an ArgumentParser object to manage the program arguments.
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osg::ArgumentParser arguments(&argc,argv);
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// construct the viewer.
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osgViewer::Viewer viewer;
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// load the nodes from the commandline arguments.
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osg::Node* rootnode = osgDB::readNodeFiles(arguments);
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if (!rootnode)
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{
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osg::notify(osg::NOTICE)<<"Warning: no valid data loaded, please specify a database on the command line."<<std::endl;
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return 1;
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}
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osg::CoordinateSystemNode* csn = findTopMostNodeOfType<osg::CoordinateSystemNode>(rootnode);
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if (csn)
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{
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osg::notify(osg::NOTICE)<<"Found CSN"<<csn<<std::endl;
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}
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osgFX::MultiTextureControl* mtc = findTopMostNodeOfType<osgFX::MultiTextureControl>(rootnode);
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if (mtc)
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{
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osg::notify(osg::NOTICE)<<"Found MTC "<<mtc<<std::endl;
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}
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// add terrain manipulator
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viewer.setCameraManipulator(new osgGA::TerrainManipulator);
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// add a viewport to the viewer and attach the scene graph.
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viewer.setSceneData( rootnode );
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// create the windows and run the threads.
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viewer.realize();
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return viewer.run();
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}
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