109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
#include <osgProducer/Viewer>
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#include <osg/Group>
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#include <osg/Geode>
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#include <osgParticle/ExplosionEffect>
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#include <osgParticle/SmokeEffect>
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#include <osgParticle/FireEffect>
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#include <osgParticle/ParticleSystemUpdater>
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//////////////////////////////////////////////////////////////////////////////
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// MAIN SCENE GRAPH BUILDING FUNCTION
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//////////////////////////////////////////////////////////////////////////////
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void build_world(osg::Group *root)
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{
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osgParticle::ExplosionEffect* explosion = new osgParticle::ExplosionEffect;
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osgParticle::SmokeEffect* smoke = new osgParticle::SmokeEffect;
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osgParticle::FireEffect* fire = new osgParticle::FireEffect;
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root->addChild(explosion);
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root->addChild(smoke);
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root->addChild(fire);
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osgParticle::ParticleSystemUpdater *psu = new osgParticle::ParticleSystemUpdater;
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psu->addParticleSystem(explosion->getParticleSystem());
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psu->addParticleSystem(smoke->getParticleSystem());
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psu->addParticleSystem(fire->getParticleSystem());
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// add the updater node to the scene graph
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root->addChild(psu);
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}
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//////////////////////////////////////////////////////////////////////////////
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// main()
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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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// set up the usage document, in case we need to print out how to use this program.
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arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of particle systems.");
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] image_file_left_eye image_file_right_eye");
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arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
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// construct the viewer.
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osgProducer::Viewer viewer(arguments);
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// set up the value with sensible default event handlers.
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viewer.setUpViewer(osgProducer::Viewer::STANDARD_SETTINGS);
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// get details on keyboard and mouse bindings used by the viewer.
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viewer.getUsage(*arguments.getApplicationUsage());
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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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osg::Group *root = new osg::Group;
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build_world(root);
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// add a viewport to the viewer and attach the scene graph.
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viewer.setSceneData(root);
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// create the windows and run the threads.
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viewer.realize();
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while( !viewer.done() )
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{
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// wait for all cull and draw threads to complete.
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viewer.sync();
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// update the scene by traversing it with the the update visitor which will
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// call all node update callbacks and animations.
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viewer.update();
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// fire off the cull and draw traversals of the scene.
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viewer.frame();
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}
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// wait for all cull and draw threads to complete before exit.
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viewer.sync();
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return 0;
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}
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