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;
}
예제 #2
0
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));
        TutorialWindow->connectMouseWheelMoved(boost::bind(mouseWheelMoved, _1, &sceneManager));

        //Particle System Material
        PointChunkRefPtr PSPointChunk = PointChunk::create();
        PSPointChunk->setSize(20.0f);
        PSPointChunk->setSmooth(true);

        BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
        PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
        PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);

        MaterialChunkRefPtr PSMaterialChunkChunk = MaterialChunk::create();
        PSMaterialChunkChunk->setAmbient(Color4f(0.2f,0.6f,0.5f,0.3f));
        PSMaterialChunkChunk->setDiffuse(Color4f(0.2f,0.9f,0.1f,0.3f));
        PSMaterialChunkChunk->setSpecular(Color4f(0.5f,0.4f,0.2f,0.6f));
        PSMaterialChunkChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);

        //enable depth test
        DepthChunkRefPtr PSDepthChunk = DepthChunk::create();

        ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
        PSMaterial->addChunk(PSPointChunk);
        PSMaterial->addChunk(PSMaterialChunkChunk);
        PSMaterial->addChunk(PSBlendChunk);
        PSMaterial->addChunk(PSDepthChunk);

        LineChunkRefPtr PSLineChunk = LineChunk::create();
        ChunkMaterialRefPtr TestMaterial = ChunkMaterial::create();
        //TestMaterial->addChunk(PointChunk::create());
        //TestMaterial->addChunk(LineChunk::create());
        TestMaterial->addChunk(PSMaterialChunkChunk);
        PolygonChunkRefPtr ThePolygonChunk = PolygonChunk::create();
        BlendChunkRefPtr TheBlendChunk = BlendChunk::create();
        DepthChunkRefPtr TheDepthChunk = DepthChunk::create();
        TestMaterial->addChunk(ThePolygonChunk);
        TestMaterial->addChunk(TheBlendChunk);
        TestMaterial->addChunk(TheDepthChunk);

        //Particle System
        ParticleSystemRecPtr ExampleParticleSystem = ParticleSystem::create();


        ExampleParticleSystem->attachUpdateProducer(TutorialWindow);

        ExampleParticleSystem->addParticle(Pnt3f(-40.0,0.0,0.0),
                                           Vec3f(0.0,1.0,0.0),
                                           Color4f(1.0,1.0,1.0,1.0),
                                           Vec3f(1.0,1.0,1.0),
                                           -1,
                                           Vec3f(0.0,0.0,0.0),
                                           Vec3f(0.0,0.0,0.0));

        ExampleParticleSystem->addParticle(Pnt3f(40.0,0.0,0.0),
                                           Vec3f(0.0,1.0,0.0),
                                           Color4f(1.0,1.0,1.0,1.0),
                                           Vec3f(1.0,1.0,1.0),
                                           -1,
                                           Vec3f(0.0,0.0,0.0),
                                           Vec3f(0.0,0.0,0.0));

        PointParticleSystemDrawerRecPtr ExamplePointParticleSystemDrawer = PointParticleSystemDrawer::create();
        ExamplePointParticleSystemDrawer->setForcePerParticleSizing(false);

        Matrix ExampleMatrix;
        ExampleMatrix.setTransform(Vec3f(10.0,10.0,10.0));

        TransformRefPtr ExampleXform = Transform::create();
        ExampleXform->setMatrix(ExampleMatrix);


        NodeRefPtr ExampleNode = Node::create();
        ExampleNode->setCore(ExampleXform);

        RateParticleGeneratorRecPtr ExampleGenerator = RateParticleGenerator::create();
        //		ExampleGenerator->setEmitInWorldSpace(true);
        ExampleGenerator->setBeacon(ExampleNode);
        ExampleGenerator->setGenerationRate(5.0);
        ExampleGenerator->setPositionDistribution(createPositionDistribution());
        ExampleGenerator->setLifespanDistribution(createLifespanDistribution());

        NewtonParticleAffectorRefPtr ExampleAffector = NewtonParticleAffector::create();
        ExampleAffector->setBeacon(ExampleNode);
        ExampleAffector->setMaxDistance(-1.0);

        ConditionalParticleAffectorRecPtr ExampleConditionalAffector = ConditionalParticleAffector::create();
        ExampleConditionalAffector->setConditionalAttribute("active");
        ExampleConditionalAffector->setConditionalOperator(4); //greater than
        ExampleConditionalAffector->setConditionalValue(0); // testing if the value associated with "test" = 1
        ExampleConditionalAffector->pushToAffectors(ExampleAffector);

        DistanceAttractRepelParticleAffectorRefPtr ExampleAttractRepelAffector = DistanceAttractRepelParticleAffector::create();
        ExampleAttractRepelAffector->setDistanceFromSource(DistanceParticleAffector::DISTANCE_FROM_NODE);

        //Attach the Generators and affectors to the Particle System
        ExampleParticleSystem->setBeacon(ExampleNode);
        //ExampleParticleSystem->pushToGenerators(ExampleGenerator);
        ExampleParticleSystem->pushToAffectors(ExampleConditionalAffector);
        // ExampleParticleSystem->pushToAffectors(ExampleAttractRepelAffector);
        ExampleParticleSystem->setMaxParticles(1000);
        ExampleParticleSystem->setDynamic(true);

        //Particle System Core
        ParticleSystemCoreRecPtr ParticleNodeCore = ParticleSystemCore::create();
        ParticleNodeCore->setSystem(ExampleParticleSystem);
        ParticleNodeCore->setDrawer(ExamplePointParticleSystemDrawer);
        ParticleNodeCore->setMaterial(PSMaterial);
        ParticleNodeCore->setSortingMode(ParticleSystemCore::BACK_TO_FRONT);

        NodeRefPtr PSNode = Node::create();
        PSNode->setCore(ParticleNodeCore);

        // Make Main Scene Node and add the Torus
        NodeRefPtr scene = Node::create();
        scene->setCore(Group::create());
        scene->addChild(PSNode);


        TutorialWindow->connectKeyTyped(boost::bind(keyTyped, _1, &sceneManager,
                                        ParticleNodeCore.get(),
                                        ExamplePointParticleSystemDrawer.get(),
                                        ExampleParticleSystem.get(),
                                        ExampleConditionalAffector.get()));
        sceneManager.setRoot(scene);

        // Show the whole Scene
        sceneManager.showAll();
        sceneManager.getCamera()->setFar(1000.0);
        sceneManager.getCamera()->setNear(0.10);

        FCFileType::FCPtrStore Containers;
        Containers.insert(scene);

        //Open Window
        Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
        Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
        TutorialWindow->openWindow(WinPos,
                                   WinSize,
                                   "16FullTest");

        //Enter main Loop
        TutorialWindow->mainLoop();

    }
    osgExit();

    return 0;
}