39c0c2df76
as osg::GraphicsOperation. Unpdated parts of OSG depending upon these. Added a virtaul bool valid() method to osg::GraphicsContext to allow apps to test whether a valid graphis context has been created or not.
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
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//
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// Simple example of use of Producer::RenderSurface to create an OpenGL
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// graphics window, and OSG for rendering.
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#include <osgDB/ReadFile>
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#include <osgViewer/Viewer>
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#include <osgGA/TrackballManipulator>
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#include <iostream>
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int main( int argc, char **argv )
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{
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if (argc<2)
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{
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std::cout << argv[0] <<": requires filename argument." << std::endl;
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return 1;
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}
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osg::DisplaySettings::instance()->setMaxNumberOfGraphicsContexts(2);
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osg::Referenced::setThreadSafeReferenceCounting(true);
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// load the scene.
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osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
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if (!loadedModel)
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{
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std::cout << argv[0] <<": No data loaded." << std::endl;
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return 1;
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}
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osgViewer::Viewer viewer;
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viewer.setSceneData(loadedModel.get());
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viewer.setCameraManipulator(new osgGA::TrackballManipulator());
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viewer.getCamera()->setClearColor(osg::Vec4f(0.6f,0.6f,0.8f,1.0f));
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viewer.setUpViewAcrossAllScreens();
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viewer.realize();
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bool limitNumberOfFrames = false;
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unsigned int numFrames = 0;
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unsigned int maxFrames = 100;
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while(!viewer.done() && !(limitNumberOfFrames && numFrames>=maxFrames))
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{
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viewer.frame();
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++numFrames;
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}
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return 0;
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}
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