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OpenSceneGraph/examples/osgshadercomposition/osgshadercomposition.cpp

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C++

/* OpenSceneGraph example, osganimate.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <osgViewer/Viewer>
#include <osgDB/ReadFile>
#include <osg/ShaderAttribute>
osg::Node* createSceneGraph(osg::ArgumentParser& arguments)
{
osg::Node* node = osgDB::readNodeFiles(arguments);
if (!node) return 0;
osg::StateSet* stateset = node->getOrCreateStateSet();
osg::ShaderAttribute* sa = new osg::ShaderAttribute;
stateset->setAttribute(sa);
return node;
}
int main( int argc, char **argv )
{
osg::ArgumentParser arguments(&argc,argv);
osgViewer::Viewer viewer(arguments);
osg::ref_ptr<osg::Node> scenegraph = createSceneGraph(arguments);
if (!scenegraph) return 1;
viewer.setSceneData(scenegraph.get());
return viewer.run();
}