134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield
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*
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* This application is open source and may be redistributed and/or modified
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* freely and without restriction, both in commericial and non commericial applications,
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* as long as this copyright notice is maintained.
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*
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* This application is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include <osgDB/ReadFile>
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#include <osgUtil/Optimizer>
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#include <osgProducer/Viewer>
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static Producer::CameraConfig *BuildConfig(void)
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{
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Producer::RenderSurface *rs1 = new Producer::RenderSurface;
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rs1->setScreenNum(0);
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//rs1->useBorder(false);
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rs1->setWindowRect(0,0,640,480);
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Producer::Camera *camera1 = new Producer::Camera;
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camera1->setRenderSurface(rs1);
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camera1->setOffset( 1.0, 0.0 );
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Producer::RenderSurface *rs2 = new Producer::RenderSurface;
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rs2->setScreenNum(0);
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//rs2->useBorder(false);
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rs2->setWindowRect(640,0,640,480);
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Producer::Camera *camera2 = new Producer::Camera;
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camera2->setRenderSurface(rs2);
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camera2->setOffset( -1.0, 0.0 );
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Producer::InputArea *ia = new Producer::InputArea;
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// ia->addInputRectangle( rs1, Producer::InputRectangle(0.0,0.5,0.0,1.0));
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// ia->addInputRectangle( rs2, Producer::InputRectangle(0.5,1.0,0.0,1.0));
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ia->addInputRectangle( rs1, Producer::InputRectangle(-1.0,0.0,-1.0,1.0));
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ia->addInputRectangle( rs2, Producer::InputRectangle(0.0,1.0,-1.0,1.0));
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Producer::CameraConfig *cfg = new Producer::CameraConfig;
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cfg->addCamera("Camera 1",camera1);
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cfg->addCamera("Camera 2", camera2);
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cfg->setInputArea(ia);
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return cfg;
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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()->setApplicationName(arguments.getApplicationName());
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arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrate hows to set up programitically a Producer::CameraConfig and use it to set up multiple window views.");
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arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
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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(BuildConfig());
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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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if (arguments.argc()<=1)
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{
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arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
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return 1;
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}
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// read the scene from the list of file specified commandline args.
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osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFiles(arguments);
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// if no model has been successfully loaded report failure.
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if (!loadedModel)
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{
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std::cout << arguments.getApplicationName() <<": No data loaded" << std::endl;
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return 1;
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}
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// optimize the scene graph, remove rendundent nodes and state etc.
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osgUtil::Optimizer optimizer;
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optimizer.optimize(loadedModel.get());
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// set the scene to render
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viewer.setSceneData(loadedModel.get());
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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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