int main(int argc, char **argv) { // OSG init osgInit(argc,argv); { // Set up Window WindowEventProducerRecPtr TutorialWindow = createNativeWindow(); TutorialWindow->initWindow(); // Create the SimpleSceneManager helper SimpleSceneManager sceneManager; TutorialWindow->setDisplayCallback(boost::bind(display, &sceneManager)); TutorialWindow->setReshapeCallback(boost::bind(reshape, _1, &sceneManager)); // Tell the Manager what to manage sceneManager.setWindow(TutorialWindow); //Attach to events TutorialWindow->connectMousePressed(boost::bind(mousePressed, _1, &sceneManager)); TutorialWindow->connectMouseReleased(boost::bind(mouseReleased, _1, &sceneManager)); TutorialWindow->connectMouseMoved(boost::bind(mouseMoved, _1, &sceneManager)); TutorialWindow->connectMouseDragged(boost::bind(mouseDragged, _1, &sceneManager)); // Material blend chunk BlendChunkRefPtr PSBlendChunk = BlendChunk::create(); PSBlendChunk->setSrcFactor(GL_SRC_ALPHA); PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA); //load up images for PS drawer ImageRefPtr rocket = ImageFileHandler::the()->read("Data/rocket.png"); ImageRefPtr smoke = ImageFileHandler::the()->read("Data/Smokey.png"); //Texture Chunk TextureObjChunkRefPtr PSRocketTexChunk = TextureObjChunk::create(); PSRocketTexChunk->setImage(rocket); TextureEnvChunkRefPtr PSRocketTexEnvChunk = TextureEnvChunk::create(); PSRocketTexEnvChunk->setEnvMode(GL_MODULATE); TextureObjChunkRefPtr SmokeTexChunk = TextureObjChunk::create(); SmokeTexChunk->setImage(smoke); TextureEnvChunkRefPtr SmokeTexEnvChunk = TextureEnvChunk::create(); SmokeTexEnvChunk->setEnvMode(GL_MODULATE); //Particle System Material MaterialChunkRefPtr PSMaterialChunkChunk = MaterialChunk::create(); PSMaterialChunkChunk->setAmbient(Color4f(1.0f,0.5f,0.3f,1.0f)); PSMaterialChunkChunk->setDiffuse(Color4f(1.0f,0.5f,0.3f,0.6f)); PSMaterialChunkChunk->setSpecular(Color4f(1.0f,0.5f,0.3f,0.6f)); PSMaterialChunkChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE); // Assembling materials ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create(); PSMaterial->addChunk(PSMaterialChunkChunk); PSMaterial->addChunk(PSBlendChunk); PSMaterial->addChunk(PSRocketTexChunk); ChunkMaterialRefPtr TrailMaterial = ChunkMaterial::create(); TrailMaterial->addChunk(PSMaterialChunkChunk); TrailMaterial->addChunk(PSBlendChunk); TrailMaterial->addChunk(SmokeTexChunk); AgeFadeParticleAffectorRefPtr AgeFadeAffector = AgeFadeParticleAffector::create(); AgeFadeAffector->setFadeInTime(0.0f); AgeFadeAffector->setStartAlpha(1.0f); AgeFadeAffector->setEndAlpha(0.0f); AgeFadeAffector->setFadeOutTime(0.35f); AgeFadeAffector->setFadeToAlpha(1.0f); // Creating a particle generator RateParticleGeneratorRefPtr ExampleGenerator = RateParticleGenerator::create(); //Attach the function objects to the Generator ExampleGenerator->setPositionDistribution(createPositionDistribution()); ExampleGenerator->setGenerationRate(3.0); ExampleGenerator->setVelocityDistribution(createVelocityDistribution()); ExampleGenerator->setNormalDistribution(createNormalDistribution()); ExampleGenerator->setLifespanDistribution(createLifespanDistribution()); ExampleGenerator->setSizeDistribution(createSizeDistribution()); //Creating Particle System ParticleSystemRecPtr ExampleParticleSystem = ParticleSystem::create(); ExampleParticleSystem->addParticle(Pnt3f(0,0,-100),Vec3f(0,1,0),Color4f(1,1,1,1),Vec3f(1,1,1),0.1,Vec3f(0,0,0),Vec3f(0,0,0)); ExampleParticleSystem->addParticle(Pnt3f(0,0,100),Vec3f(0,1,0),Color4f(1,1,1,1),Vec3f(1,1,1),0.1,Vec3f(0,0,0),Vec3f(0,0,0)); ExampleParticleSystem->setMaxParticles(5); // 5 rockets max to avoid collisions. they are bad. ExampleParticleSystem->pushToAffectors(AgeFadeAffector); ExampleParticleSystem->attachUpdateProducer(TutorialWindow); //Creating Particle System Drawer QuadParticleSystemDrawerRefPtr ExampleParticleSystemDrawer = QuadParticleSystemDrawer::create(); ExampleParticleSystemDrawer->setNormalAndUpSource(QuadParticleSystemDrawer::NORMAL_VIEW_DIRECTION, QuadParticleSystemDrawer::UP_VELOCITY); QuadParticleSystemDrawerRefPtr ExampleTrailDrawer = QuadParticleSystemDrawer::create(); ExampleTrailDrawer->setNormalAndUpSource(QuadParticleSystemDrawer::NORMAL_VIEW_DIRECTION, QuadParticleSystemDrawer::UP_PARTICLE_NORMAL); // Attaching affector and generator to the particle system ExampleParticleSystem->pushToGenerators(ExampleGenerator); //Particle System Core, setting its system, drawer, and material ParticleSystemCoreRefPtr ParticleNodeCore = ParticleSystemCore::create(); ParticleNodeCore->setSystem(ExampleParticleSystem); ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer); ParticleNodeCore->setMaterial(PSMaterial); // create Particle System Particle Trail generator ParticleSystemParticleTrailGeneratorRecPtr ExamplePSTrailGenerator = ParticleSystemParticleTrailGenerator::create(); ExamplePSTrailGenerator->setTrailResolution(0.05f); ExamplePSTrailGenerator->setTrailLength(1.2); ExamplePSTrailGenerator->setTrailLengthMethod(ParticleTrailGenerator::TIME); ExamplePSTrailGenerator->setTrailResolutionMethod(ParticleTrailGenerator::TIME_SPACING); ExamplePSTrailGenerator->setTrailMaterial(TrailMaterial); ExamplePSTrailGenerator->setTrailDrawer(ExampleTrailDrawer); ExamplePSTrailGenerator->setSizeDistribution(createTrailSizeDistribution()); ExamplePSTrailGenerator->setColorDistribution(createColorDistribution()); ExamplePSTrailGenerator->setNormalDistribution(createNormalDistribution()); ExamplePSTrailGenerator->setVelocityDistribution(createNormalDistribution()); // create affectors for particle trails GravityParticleAffectorRefPtr GravAffector = GravityParticleAffector::create(); GravAffector->setBeacon(ExamplePSTrailGenerator); AgeFadeParticleAffectorRefPtr TrailAgeFadeAffector = AgeFadeParticleAffector::create(); TrailAgeFadeAffector->setFadeInTime(0.2f); TrailAgeFadeAffector->setStartAlpha(0.0f); TrailAgeFadeAffector->setEndAlpha(0.0f); TrailAgeFadeAffector->setFadeOutTime(1.0f); TrailAgeFadeAffector->setFadeToAlpha(0.6f); // now we attach the affector to the particle trail generator's particle system ExamplePSTrailGenerator->getParticleSystem()->pushToAffectors(TrailAgeFadeAffector); // attach listener for trail generator to the particle system ExamplePSTrailGenerator->setSystemToTrail(ExampleParticleSystem); //Attach the the update producer to the particle system particle trail generator. ExamplePSTrailGenerator->attachUpdateProducer(TutorialWindow); // Set up node with the particle system at its core NodeRefPtr ParticleNode = Node::create(); ParticleNode->setCore(ParticleNodeCore); ParticleNode->addChild(ExamplePSTrailGenerator); // Make Main Scene Node NodeRefPtr scene = Node::create(); scene->setCore(Group::create()); scene->addChild(ParticleNode); sceneManager.setRoot(scene); // Show the whole Scene sceneManager.showAll(); sceneManager.getCamera()->setFar(10000.0f); sceneManager.getCamera()->setNear(0.1f); sceneManager.setStatistics(false); //Open Window Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f); Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5); TutorialWindow->openWindow(WinPos, WinSize, "02ParticleSystemParticleTrail"); std::cout << "Controls: " << std::endl << "P: Increase Trail Resolution" << std::endl << "L: Decrease Trail Resolution" << std::endl << "O: Increase Trail Length" << std::endl << "K: Decrease Trail Length" << std::endl << "J: Toggle calculating trail length by num points/time" << std::endl << "Y: Toggle calculating trail point spacing by time/distance" << std::endl << "B: Particle burst" << std::endl; //Enter main Loop TutorialWindow->mainLoop(); } osgExit(); return 0; }
// Initialize WIN32 & OpenSG and set up the scene int main(int argc, char **argv) { // OSG init osgInit(argc,argv); { // create the scene NodeRecPtr scene = makeTorus(.5, 2, 16, 16); //Create a Window object WindowEventProducerRefPtr TheWindow = createNativeWindow(); //Apply window settings TheWindow->setUseCallbackForDraw(true); TheWindow->setUseCallbackForReshape(true); //TheWindow->setFullscreen(true); //Initialize Window TheWindow->initWindow(); commitChanges(); // create the SimpleSceneManager helper SimpleSceneManager sceneManager; TheWindow->setDisplayCallback(boost::bind(display, &sceneManager)); TheWindow->setReshapeCallback(boost::bind(reshape, _1, &sceneManager)); // tell the manager what to manage sceneManager.setWindow(TheWindow); sceneManager.setRoot (scene); //Attach to the Mouse Events TheWindow->connectMouseClicked(boost::bind(mouseClicked, _1)); TheWindow->connectMousePressed(boost::bind(mousePressed, _1, &sceneManager)); TheWindow->connectMouseReleased(boost::bind(mouseReleased, _1, &sceneManager)); TheWindow->connectMouseMoved(boost::bind(mouseMoved, _1, &sceneManager)); TheWindow->connectMouseDragged(boost::bind(mouseDragged, _1, &sceneManager)); TheWindow->connectMouseEntered(boost::bind(mouseEntered, _1)); TheWindow->connectMouseExited(boost::bind(mouseExited, _1)); TheWindow->connectMouseWheelMoved(boost::bind(mouseWheelMoved, _1, &sceneManager)); //Attach to the Key Events TheWindow->connectKeyPressed(boost::bind(keyPressed, _1)); TheWindow->connectKeyReleased(boost::bind(keyReleased, _1)); TheWindow->connectKeyTyped(boost::bind(keyTyped, _1)); //Attach to the Window Events TheWindow->connectWindowOpened(boost::bind(windowOpened, _1)); TheWindow->connectWindowClosing(boost::bind(windowClosing, _1)); TheWindow->connectWindowClosed(boost::bind(windowClosed, _1)); TheWindow->connectWindowIconified(boost::bind(windowIconified, _1)); TheWindow->connectWindowDeiconified(boost::bind(windowDeiconified, _1)); TheWindow->connectWindowActivated(boost::bind(windowActivated, _1)); TheWindow->connectWindowDeactivated(boost::bind(windowDeactivated, _1)); TheWindow->connectWindowEntered(boost::bind(windowEntered, _1)); TheWindow->connectWindowExited(boost::bind(windowExited, _1)); //Create the Documentation Foreground and add it to the viewport SimpleScreenDoc TheSimpleScreenDoc(&sceneManager, TheWindow); // show the whole scene sceneManager.showAll(); // show statistics sceneManager.setStatistics(true); //Open Window Vec2f WinSize(TheWindow->getDesktopSize() * 0.85f); Pnt2f WinPos((TheWindow->getDesktopSize() - WinSize) *0.5); TheWindow->openWindow(WinPos, WinSize, "01 Native Window"); //Enter main loop TheWindow->mainLoop(); } osgExit(); return 0; }