101 lines
3.0 KiB
C++
101 lines
3.0 KiB
C++
#include <osgGLUT/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 <osgGA/TrackballManipulator>
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#include <osgGA/FlightManipulator>
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#include <osgGA/DriveManipulator>
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#include <osgUtil/Optimizer>
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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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// set up the usage document, in case we need to print out how to use this program.
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getProgramName()+" [options] filename ...");
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arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
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// initialize the viewer.
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osgGLUT::Viewer viewer(arguments);
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// if user request help write it out to cout.
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if (arguments.read("-h") || arguments.read("--help"))
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{
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arguments.getApplicationUsage()->write(std::cout);
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return 1;
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}
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// any option left unread are converted into errors to write out later.
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arguments.reportRemainingOptionsAsUnrecognized();
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// report any errors if they have occured when parsing the program aguments.
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if (arguments.errors())
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{
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arguments.writeErrorMessages(std::cout);
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return 1;
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}
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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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// write_usage(osg::notify(osg::NOTICE),argv[0]);
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return 1;
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}
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osg::Image* image = osgDB::readImageFile("Images/reflect.rgb");
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if (image)
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{
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osg::Texture2D* texture = new osg::Texture2D;
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texture->setImage(image);
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osg::TexGen* texgen = new osg::TexGen;
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texgen->setMode(osg::TexGen::SPHERE_MAP);
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osg::TexEnv* texenv = new osg::TexEnv;
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texenv->setMode(osg::TexEnv::BLEND);
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texenv->setColor(osg::Vec4(0.3f,0.3f,0.3f,0.3f));
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osg::StateSet* stateset = new osg::StateSet;
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stateset->setTextureAttributeAndModes(1,texture,osg::StateAttribute::ON);
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stateset->setTextureAttributeAndModes(1,texgen,osg::StateAttribute::ON);
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stateset->setTextureAttribute(1,texenv);
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rootnode->setStateSet(stateset);
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}
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else
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{
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osg::notify(osg::NOTICE)<<"unable to load reflect map, model will not be mutlitextured"<<std::endl;
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}
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// run optimization over the scene graph
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osgUtil::Optimizer optimzer;
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optimzer.optimize(rootnode);
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// add a viewport to the viewer and attach the scene graph.
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viewer.addViewport( rootnode );
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// register trackball, flight and drive.
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viewer.registerCameraManipulator(new osgGA::TrackballManipulator);
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viewer.registerCameraManipulator(new osgGA::FlightManipulator);
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viewer.registerCameraManipulator(new osgGA::DriveManipulator);
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// open the viewer window.
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viewer.open();
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// fire up the event loop.
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viewer.run();
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return 0;
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}
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