int main(int argc, char **argv)
{
preloadSharedObject("OSGImageFileIO");
// 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));
// Creating the Particle System Material
// Here, the image is loaded. The entire image sequence is conatined in one image,
// which reduces texture memory overhead and runs faster.
TextureObjChunkRefPtr QuadTextureChunk = TextureObjChunk::create();
ImageRefPtr LoadedImage = ImageFileHandler::the()->read("Data/SpriteExplode.png");
QuadTextureChunk->setImage(LoadedImage);
TextureEnvChunkRefPtr QuadTextureEnvChunk = TextureEnvChunk::create();
QuadTextureEnvChunk->setEnvMode(GL_MODULATE);
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
MaterialChunkRefPtr PSMaterialChunk = MaterialChunk::create();
PSMaterialChunk->setAmbient(Color4f(0.3f,0.0f,0.0f,1.0f));
PSMaterialChunk->setDiffuse(Color4f(0.7f,0.0f,0.0f,1.0f));
PSMaterialChunk->setSpecular(Color4f(0.9f,0.0f,0.0f,1.0f));
PSMaterialChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);
ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
PSMaterial->addChunk(QuadTextureChunk);
PSMaterial->addChunk(QuadTextureEnvChunk);
PSMaterial->addChunk(PSMaterialChunk);
PSMaterial->addChunk(PSBlendChunk);
//Particle System
ParticleSystemRecPtr ExampleParticleSystem = ParticleSystem::create();
ExampleParticleSystem->attachUpdateProducer(TutorialWindow);
//Age Particle Function. Controls which image is shown when, based on the age of a particle.
AgeParticleFunctionRecPtr AgeFunc = AgeParticleFunction::create();
AgeFunc->setSequenceTime(0.1f); // image changes every 0.1 seconds.
AgeFunc->setSequenceOrder(AgeParticleFunction::CUSTOM); // using the custom sequence below.
/*
Here, a custom sequence for the image ordering is assembled. The image sequence will be shown in
the order specified here. Once the end of the sequence is reached, the sequence repeats.
*/
AgeFunc->editMFCustomSequence()->push_back(0);
AgeFunc->editMFCustomSequence()->push_back(1);
AgeFunc->editMFCustomSequence()->push_back(2);
AgeFunc->editMFCustomSequence()->push_back(3);
AgeFunc->editMFCustomSequence()->push_back(4);
AgeFunc->editMFCustomSequence()->push_back(5);
AgeFunc->editMFCustomSequence()->push_back(4);
AgeFunc->editMFCustomSequence()->push_back(3);
AgeFunc->editMFCustomSequence()->push_back(2);
AgeFunc->editMFCustomSequence()->push_back(1);
//Particle System Drawer -
QuadSequenceParticleSystemDrawerRecPtr ExampleParticleSystemDrawer = QuadSequenceParticleSystemDrawer::create();
// image dimensions (in pixels) are required if there is a border on the images.
ExampleParticleSystemDrawer->setImageDimensions(Vec2us(780,520));
// The "dimensions" of the sequence contained in the image. For this image,
// there are 3 images in the "x" direction, and two in the "y" direction, for a
// total of 6.
ExampleParticleSystemDrawer->setSequenceDimensions(Vec2b(3,2));
// width of the border on each side of the image, in pixels.
ExampleParticleSystemDrawer->setBorderOffsets(Vec2b(0,0));
// this is the age function we just created above.
ExampleParticleSystemDrawer->setSequenceFunction(AgeFunc);
RateParticleGeneratorRecPtr ExampleParticleGenerator = RateParticleGenerator::create();
//Attach the function objects to the Generator
ExampleParticleGenerator->setPositionDistribution(createPositionDistribution());
ExampleParticleGenerator->setLifespanDistribution(createLifespanDistribution());
ExampleParticleGenerator->setVelocityDistribution(createVelocityDistribution());
ExampleParticleGenerator->setAccelerationDistribution(createAccelerationDistribution());
ExampleParticleGenerator->setSizeDistribution(createSizeDistribution());
ExampleParticleGenerator->setGenerationRate(40.0f);
//Particle System Node
ParticleSystemCoreRefPtr ParticleNodeCore = ParticleSystemCore::create();
ParticleNodeCore->setSystem(ExampleParticleSystem);
ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer);
ParticleNodeCore->setMaterial(PSMaterial);
ParticleNodeCore->setSortingMode(ParticleSystemCore::BACK_TO_FRONT);
NodeRefPtr ParticleNode = Node::create();
ParticleNode->setCore(ParticleNodeCore);
ExampleParticleSystem->addParticle(Pnt3f(10.0,0.0,0.0),
Vec3f(0.0,1.0,0.0),
Color4f(1.0,1.0,1.0,1.0),
Vec3f(1.0,1.0,1.0),
0.01,
Vec3f(0.0,0.0,0.0),
Vec3f(0.0,0.0,0.0));
ExampleParticleSystem->addParticle(Pnt3f(-10.0,0.0,0.0),
Vec3f(0.0,1.0,0.0),
Color4f(1.0,1.0,1.0,1.0),
Vec3f(1.0,1.0,1.0),
0.01,
Vec3f(0.0,0.0,0.0),
Vec3f(0.0,0.0,0.0));
ExampleParticleSystem->pushToGenerators(ExampleParticleGenerator);
// Make Main Scene Node and add the Torus
NodeRefPtr scene = makeCoredNode<Group>();
scene->addChild(ParticleNode);
TutorialWindow->connectKeyTyped(boost::bind(keyTyped, _1,
&sceneManager,
AgeFunc.get()));
sceneManager.setRoot(scene);
// Show the whole Scene
sceneManager.showAll();
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"05a - QuadSequenceParticleDrawer");
//Enter main Loop
TutorialWindow->mainLoop();
}
osgExit();
return 0;
}
int main(int argc, char **argv)
{
// OSG init
osgInit(argc,argv);
// Set up Window
TutorialWindow = createNativeWindow();
TutorialWindow->initWindow();
TutorialWindow->setDisplayCallback(display);
TutorialWindow->setReshapeCallback(reshape);
TutorialKeyListener TheKeyListener;
TutorialWindow->addKeyListener(&TheKeyListener);
TutorialMouseListener TheTutorialMouseListener;
TutorialMouseMotionListener TheTutorialMouseMotionListener;
TutorialWindow->addMouseListener(&TheTutorialMouseListener);
TutorialWindow->addMouseMotionListener(&TheTutorialMouseMotionListener);
// Create the SimpleSceneManager helper
mgr = new SimpleSceneManager;
// Tell the Manager what to manage
mgr->setWindow(TutorialWindow);
//Particle System Material
TextureObjChunkRefPtr QuadTextureObjChunk = TextureObjChunk::create();
ImageRefPtr LoadedImage = ImageFileHandler::the()->read("Data/Cloud.png");
QuadTextureObjChunk->setImage(LoadedImage);
TextureEnvChunkRefPtr QuadTextureEnvChunk = TextureEnvChunk::create();
QuadTextureEnvChunk->setEnvMode(GL_MODULATE);
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
MaterialChunkRefPtr PSMaterialChunk = MaterialChunk::create();
PSMaterialChunk->setAmbient(Color4f(0.3f,0.3f,0.3f,1.0f));
PSMaterialChunk->setDiffuse(Color4f(0.7f,0.7f,0.7f,1.0f));
PSMaterialChunk->setSpecular(Color4f(0.9f,0.9f,0.9f,1.0f));
PSMaterialChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);
ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
PSMaterial->addChunk(QuadTextureObjChunk);
PSMaterial->addChunk(QuadTextureEnvChunk);
PSMaterial->addChunk(PSMaterialChunk);
PSMaterial->addChunk(PSBlendChunk);
//Affector
ExampleAgeSizeParticleAffector = OSG::AgeSizeParticleAffector::create();
//ages
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.0);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.05);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.2);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.36);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.7);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.8);
ExampleAgeSizeParticleAffector->editMFAges()->push_back(1.0);
//sizes
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(1.0,0.5,1.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(1.0,0.5,1.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(20.0,0.5,30.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(3.0,3.0,3.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(6.0,60.0,6.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(2.0,3.0,1.0));
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(10.0,1.0,10.0));
//Particle System
ExampleParticleSystem = OSG::ParticleSystem::create();
ExampleParticleSystem->attachUpdateListener(TutorialWindow);
ExampleParticleSystem->pushToAffectors(ExampleAgeSizeParticleAffector);
//Particle System Drawer
ExampleParticleSystemDrawer = OSG::QuadParticleSystemDrawer::create();
ExampleBurstGenerator = OSG::BurstParticleGenerator::create();
//Attach the function objects to the Generator
ExampleBurstGenerator->setPositionDistribution(createPositionDistribution());
ExampleBurstGenerator->setLifespanDistribution(createLifespanDistribution());
ExampleBurstGenerator->setBurstAmount(10.0);
ExampleBurstGenerator->setVelocityDistribution(createVelocityDistribution());
//ExampleBurstGenerator->setAccelerationDistribution(createAccelerationDistribution());
ExampleBurstGenerator->setSizeDistribution(createSizeDistribution());
//Particle System Node
ParticleSystemCoreRefPtr ParticleNodeCore = OSG::ParticleSystemCore::create();
ParticleNodeCore->setSystem(ExampleParticleSystem);
ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer);
ParticleNodeCore->setMaterial(PSMaterial);
NodeRefPtr ParticleNode = OSG::Node::create();
ParticleNode->setCore(ParticleNodeCore);
//Ground Node
NodeRefPtr GoundNode = makePlane(30.0,30.0,10,10);
Matrix GroundTransformation;
GroundTransformation.setRotate(Quaternion(Vec3f(1.0f,0.0,0.0), -3.14195f));
TransformRefPtr GroundTransformCore = Transform::create();
GroundTransformCore->setMatrix(GroundTransformation);
NodeRefPtr GroundTransformNode = Node::create();
GroundTransformNode->setCore(GroundTransformCore);
GroundTransformNode->addChild(GoundNode);
// Make Main Scene Node and add the Torus
NodeRefPtr scene = OSG::Node::create();
scene->setCore(OSG::Group::create());
scene->addChild(ParticleNode);
scene->addChild(GroundTransformNode);
mgr->setRoot(scene);
// Show the whole Scene
mgr->showAll();
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"07AgeSizeParticleAffector");
//Enter main Loop
TutorialWindow->mainLoop();
osgExit();
return 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));
// 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;
}
void keyPressed(KeyEventDetails* const details, SimpleSceneManager *mgr, ParticleSystem* const ExampleParticleSystem, SimpleParticleTrailGenerator* const ExampleTrailGenerator)
{
if(details->getKey() == KeyEventDetails::KEY_Q && details->getModifiers() & KeyEventDetails::KEY_MODIFIER_CONTROL)
{
dynamic_cast<WindowEventProducer*>(details->getSource())->closeWindow();
}
else
{
switch(details->getKey())
{
case KeyEventDetails::KEY_R:
{
}
break;
case KeyEventDetails::KEY_B:
{ // check if the burst generator is null
if(ExampleBurstGen == NULL)
{
ExampleBurstGen = BurstParticleGenerator::create();
ExampleBurstGen->setPositionDistribution(createPositionDistribution());
ExampleBurstGen->setBurstAmount(100);
ExampleBurstGen->setVelocityDistribution(createVelocityDistribution());
ExampleBurstGen->setNormalDistribution(createNormalDistribution());
ExampleBurstGen->setLifespanDistribution(createLifespanDistribution());
ExampleBurstGen->setSizeDistribution(createSizeDistribution());
}
// attach the burst generator
ExampleParticleSystem->pushToGenerators(ExampleBurstGen);
}
break;
case KeyEventDetails::KEY_P:
{ // increase trail resolution
ExamplePSTrailGenerator->setTrailResolution(ExamplePSTrailGenerator->getTrailResolution() * 0.70 + 0.0001);
std::cout << "Trail Resolution: " << ExamplePSTrailGenerator->getTrailResolution() << std::endl;
break;
}
case KeyEventDetails::KEY_L:
{ // decrease trail resolution
ExamplePSTrailGenerator->setTrailResolution(ExamplePSTrailGenerator->getTrailResolution() * 1.25);
std::cout << "Trail Resolution: " << ExamplePSTrailGenerator->getTrailResolution() << std::endl;
break;
}
case KeyEventDetails::KEY_O:
{ // increase trail length
ExamplePSTrailGenerator->setTrailLength(ExamplePSTrailGenerator->getTrailLength() * 1.25 + 0.1);
std::cout << "Trail Length: " << ExamplePSTrailGenerator->getTrailLength() << std::endl;
break;
}
case KeyEventDetails::KEY_K:
{ // decrease trail length
ExamplePSTrailGenerator->setTrailLength(ExamplePSTrailGenerator->getTrailLength() * 0.7);
std::cout << "Trail Length: " << ExamplePSTrailGenerator->getTrailLength() << std::endl;
break;
}
case KeyEventDetails::KEY_J:
{ // toggle trail length method
ExamplePSTrailGenerator->setTrailLengthMethod((ExamplePSTrailGenerator->getTrailLengthMethod() == ParticleTrailGenerator::NUM_POINTS)?
(ParticleTrailGenerator::TIME):(ParticleTrailGenerator::NUM_POINTS));
std::cout << "Trail Length: " << (ExamplePSTrailGenerator->getTrailLengthMethod() == ParticleTrailGenerator::NUM_POINTS ? "Num Pts":"Time") << std::endl;
break;
}
case KeyEventDetails::KEY_Y:
{ // toggle trail spacing method
ExamplePSTrailGenerator->setTrailResolutionMethod((ExamplePSTrailGenerator->getTrailResolutionMethod() == ParticleTrailGenerator::TIME_SPACING)?
(ParticleTrailGenerator::DISTANCE_SPACING):(ParticleTrailGenerator::TIME_SPACING));
std::cout << "Trail resolution: " <<(ExamplePSTrailGenerator->getTrailResolutionMethod() == ParticleTrailGenerator::TIME_SPACING ? "Time Spacing" : "Distance Spacing") << std::endl;
break;
}
case KeyEventDetails::KEY_V:
{
mgr->getRenderAction()->setVolumeDrawing(!mgr->getRenderAction()->getVolumeDrawing());
}
}
}
}
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->connectMouseDragged(boost::bind(mouseDragged, _1, &sceneManager));
TutorialWindow->connectMouseWheelMoved(boost::bind(mouseWheelMoved, _1, &sceneManager));
//Particle System Material
TextureObjChunkRefPtr QuadTextureChunk = TextureObjChunk::create();
ImageRefPtr LoadedImage = ImageFileHandler::the()->read("Data/Cloud.png");
QuadTextureChunk->setImage(LoadedImage);
TextureEnvChunkRefPtr QuadTextureEnvChunk = TextureEnvChunk::create();
QuadTextureEnvChunk->setEnvMode(GL_MODULATE);
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
MaterialChunkRefPtr PSMaterialChunk = MaterialChunk::create();
PSMaterialChunk->setAmbient(Color4f(0.3f,0.3f,0.3f,1.0f));
PSMaterialChunk->setDiffuse(Color4f(0.7f,0.7f,0.7f,1.0f));
PSMaterialChunk->setSpecular(Color4f(0.9f,0.9f,0.9f,1.0f));
PSMaterialChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);
ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
PSMaterial->addChunk(QuadTextureChunk);
PSMaterial->addChunk(QuadTextureEnvChunk);
PSMaterial->addChunk(PSMaterialChunk);
PSMaterial->addChunk(PSBlendChunk);
//Particle System
ParticleSystemRecPtr ExampleParticleSystem = ParticleSystem::create();
ExampleParticleSystem->attachUpdateProducer(TutorialWindow);
//Particle System Drawer
QuadParticleSystemDrawerRefPtr ExampleParticleSystemDrawer = QuadParticleSystemDrawer::create();
BurstParticleGeneratorRecPtr ExampleBurstGenerator = BurstParticleGenerator::create();
//Attach the function objects to the Generator
ExampleBurstGenerator->setPositionDistribution(createPositionDistribution());
ExampleBurstGenerator->setLifespanDistribution(createLifespanDistribution());
ExampleBurstGenerator->setBurstAmount(50.0);
ExampleBurstGenerator->setVelocityDistribution(createVelocityDistribution());
ExampleBurstGenerator->setAccelerationDistribution(createAccelerationDistribution());
ExampleBurstGenerator->setSizeDistribution(createSizeDistribution());
//Particle System Node
ParticleSystemCoreRefPtr ParticleNodeCore = ParticleSystemCore::create();
ParticleNodeCore->setSystem(ExampleParticleSystem);
ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer);
ParticleNodeCore->setMaterial(PSMaterial);
NodeRefPtr ParticleNode = Node::create();
ParticleNode->setCore(ParticleNodeCore);
//Ground Node
NodeRefPtr GoundNode = makePlane(30.0,30.0,10,10);
Matrix GroundTransformation;
GroundTransformation.setRotate(Quaternion(Vec3f(1.0f,0.0,0.0), -3.14195f));
TransformRefPtr GroundTransformCore = Transform::create();
GroundTransformCore->setMatrix(GroundTransformation);
NodeRefPtr GroundTransformNode = Node::create();
GroundTransformNode->setCore(GroundTransformCore);
GroundTransformNode->addChild(GoundNode);
// Make Main Scene Node and add the Torus
NodeRefPtr scene = Node::create();
scene->setCore(Group::create());
scene->addChild(ParticleNode);
scene->addChild(GroundTransformNode);
TutorialWindow->connectKeyTyped(boost::bind(keyTyped, _1,
&sceneManager,
ExampleParticleSystem.get(),
ExampleBurstGenerator.get(),
ExampleParticleSystemDrawer.get()));
sceneManager.setRoot(scene);
//Create the Documentation
SimpleScreenDoc TheSimpleScreenDoc(&sceneManager, TutorialWindow);
// Show the whole Scene
sceneManager.showAll();
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"05QuadParticleDrawer");
//Enter main Loop
TutorialWindow->mainLoop();
}
osgExit();
return 0;
}
int main(int argc, char **argv)
{
preloadSharedObject("OSGImageFileIO");
// 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));
// Creating the Particle System Material
// Here, the image is loaded. The entire image sequence is conatined in one image,
// which reduces texture memory overhead and runs faster.
TextureObjChunkRefPtr QuadTextureChunk = TextureObjChunk::create();
ImageRefPtr LoadedImage = ImageFileHandler::the()->read("Data/Explosion.png");
QuadTextureChunk->setImage(LoadedImage);
TextureEnvChunkRefPtr QuadTextureEnvChunk = TextureEnvChunk::create();
QuadTextureEnvChunk->setEnvMode(GL_MODULATE);
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
MaterialChunkRefPtr PSMaterialChunk = MaterialChunk::create();
PSMaterialChunk->setLit(false);
ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
PSMaterial->addChunk(QuadTextureChunk);
PSMaterial->addChunk(QuadTextureEnvChunk);
PSMaterial->addChunk(PSMaterialChunk);
PSMaterial->addChunk(PSBlendChunk);
//Particle System
ParticleSystemRecPtr ExplosionParticleSystem = ParticleSystem::create();
ExplosionParticleSystem->attachUpdateProducer(TutorialWindow);
//Age Particle Function. Controls which image is shown when, based on the age of a particle.
AgeParticleFunctionRecPtr AgeFunc = AgeParticleFunction::create();
AgeFunc->setSequenceTime(0.07f); // image changes every 0.1 seconds.
AgeFunc->setSequenceOrder(AgeParticleFunction::CUSTOM); // using the custom sequence below.
/*
Here, a custom sequence for the image ordering is assembled. The image sequence will be shown in
the order specified here. Once the end of the sequence is reached, the sequence repeats.
*/
UInt32 NumImages(25);
for(UInt32 i(0) ; i<NumImages ; ++i)
{
AgeFunc->editMFCustomSequence()->push_back(i);
}
//Particle System Drawer -
QuadSequenceParticleSystemDrawerRecPtr ExplosionParticleSystemDrawer = QuadSequenceParticleSystemDrawer::create();
// image dimensions (in pixels) are required if there is a border on the images.
ExplosionParticleSystemDrawer->setImageDimensions(Vec2us(320,320));
// The "dimensions" of the sequence contained in the image. For this image,
// there are 3 images in the "x" direction, and two in the "y" direction, for a
// total of 6.
ExplosionParticleSystemDrawer->setSequenceDimensions(Vec2b(5,5));
// width of the border on each side of the image, in pixels.
ExplosionParticleSystemDrawer->setBorderOffsets(Vec2b(0,0));
// this is the age function we just created above.
ExplosionParticleSystemDrawer->setSequenceFunction(AgeFunc);
RateParticleGeneratorRecPtr ExplosionParticleGenerator = RateParticleGenerator::create();
//Attach the function objects to the Generator
ExplosionParticleGenerator->setPositionDistribution(createPositionDistribution());
ExplosionParticleGenerator->setLifespanDistribution(createLifespanDistribution());
ExplosionParticleGenerator->setVelocityDistribution(createVelocityDistribution());
ExplosionParticleGenerator->setAccelerationDistribution(createAccelerationDistribution());
ExplosionParticleGenerator->setSizeDistribution(createSizeDistribution());
ExplosionParticleGenerator->setGenerationRate(100.0f);
//Particle System Node
ParticleSystemCoreRefPtr ExplosionParticleCore = ParticleSystemCore::create();
ExplosionParticleCore->setSystem(ExplosionParticleSystem);
ExplosionParticleCore->setDrawer(ExplosionParticleSystemDrawer);
ExplosionParticleCore->setMaterial(PSMaterial);
ExplosionParticleCore->setSortingMode(ParticleSystemCore::BACK_TO_FRONT);
NodeRefPtr ExplosionParticleNode = Node::create();
ExplosionParticleNode->setCore(ExplosionParticleCore);
ExplosionParticleSystem->addParticle(Pnt3f(10.0,0.0,0.0),
Vec3f(0.0,1.0,0.0),
Color4f(1.0,1.0,1.0,1.0),
Vec3f(1.0,1.0,1.0),
0.01,
Vec3f(0.0,0.0,0.0),
Vec3f(0.0,0.0,0.0));
ExplosionParticleSystem->addParticle(Pnt3f(-10.0,0.0,0.0),
Vec3f(0.0,1.0,0.0),
Color4f(1.0,1.0,1.0,1.0),
Vec3f(1.0,1.0,1.0),
0.01,
Vec3f(0.0,0.0,0.0),
Vec3f(0.0,0.0,0.0));
ExplosionParticleSystem->pushToGenerators(ExplosionParticleGenerator);
AgeSizeParticleAffectorRecPtr ExampleAgeSizeParticleAffector = AgeSizeParticleAffector::create();
//Age and size
ExampleAgeSizeParticleAffector->editMFAges()->push_back(0.0);
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(0.2,0.2,0.2));
ExampleAgeSizeParticleAffector->editMFAges()->push_back(1.0);
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(4.0,4.0,4.0));
ExampleAgeSizeParticleAffector->editMFAges()->push_back(1.8);
ExampleAgeSizeParticleAffector->editMFSizes()->push_back(Vec3f(2.2,2.2,0.1));
//Age Fade Affector
AgeFadeParticleAffectorRecPtr ExampleAgeFadeParticleAffector = AgeFadeParticleAffector::create();
//Age and size
ExampleAgeFadeParticleAffector->setStartAlpha(0.0f);
ExampleAgeFadeParticleAffector->setFadeInTime(0.5f);
ExampleAgeFadeParticleAffector->setFadeToAlpha(1.0f);
ExampleAgeFadeParticleAffector->setFadeOutTime(0.5f);
ExampleAgeFadeParticleAffector->setEndAlpha(0.0f);
ExplosionParticleSystem->pushToAffectors(ExampleAgeFadeParticleAffector);
//Smoke Particle System
VortexParticleAffectorRecPtr SmokeVortexAffector = VortexParticleAffector::create();
SmokeVortexAffector->setMagnitude(0.2);
SmokeVortexAffector->setVortexAxis(Vec3f(0.0,1.0,0.0)); // field rotates around y axis
NodeRefPtr VortexBeacon = makeCoredNode<Group>();
SmokeVortexAffector->setBeacon(VortexBeacon); // set to 'emulate' from (0,0,0)
SmokeVortexAffector->setMaxDistance(-1.0); // particles affected regardless of distance
SmokeVortexAffector->setAttenuation(0.25); // strength of uniform field dimishes by dist^attenuation
AgeFadeParticleAffectorRecPtr SmokeAgeFadeParticleAffector = AgeFadeParticleAffector::create();
//Age and size
SmokeAgeFadeParticleAffector->setStartAlpha(0.0f);
SmokeAgeFadeParticleAffector->setFadeInTime(0.2f);
SmokeAgeFadeParticleAffector->setFadeToAlpha(1.0f);
SmokeAgeFadeParticleAffector->setFadeOutTime(3.5f);
SmokeAgeFadeParticleAffector->setEndAlpha(0.0f);
RateParticleGeneratorRecPtr SmokeParticleGenerator = RateParticleGenerator::create();
SmokeParticleGenerator->setSizeDistribution(createSmokeSizeDistribution());
SmokeParticleGenerator->setPositionDistribution(createSmokePositionDistribution());
SmokeParticleGenerator->setLifespanDistribution(createSmokeLifespanDistribution());
SmokeParticleGenerator->setVelocityDistribution(createSmokeVelocityDistribution());
SmokeParticleGenerator->setColorDistribution(createSmokeColorDistribution());
SmokeParticleGenerator->setGenerationRate(80.0f);
ParticleSystemRecPtr SmokeParticleSystem = ParticleSystem::create();
SmokeParticleSystem->pushToGenerators(SmokeParticleGenerator);
SmokeParticleSystem->attachUpdateProducer(TutorialWindow);
SmokeParticleSystem->pushToAffectors(SmokeAgeFadeParticleAffector);
SmokeParticleSystem->pushToAffectors(SmokeVortexAffector);
TextureObjChunkRefPtr SmokeTextureObjChunk = TextureObjChunk::create();
ImageRefPtr SmokeImage = ImageFileHandler::the()->read("Data/Smoke.png");
SmokeTextureObjChunk->setImage(SmokeImage);
ChunkMaterialRefPtr SmokeMaterial = ChunkMaterial::create();
SmokeMaterial->addChunk(SmokeTextureObjChunk);
SmokeMaterial->addChunk(QuadTextureEnvChunk);
SmokeMaterial->addChunk(PSMaterialChunk);
SmokeMaterial->addChunk(PSBlendChunk);
SmokeMaterial->setSortKey(-1.0f);
QuadParticleSystemDrawerRecPtr SmokeParticleSystemDrawer = QuadParticleSystemDrawer::create();
ParticleSystemCoreRefPtr SmokeParticleCore = ParticleSystemCore::create();
SmokeParticleCore->setSystem(SmokeParticleSystem);
SmokeParticleCore->setDrawer(SmokeParticleSystemDrawer);
SmokeParticleCore->setMaterial(SmokeMaterial);
SmokeParticleCore->setSortingMode(ParticleSystemCore::BACK_TO_FRONT);
NodeRefPtr SmokeParticleNode = Node::create();
SmokeParticleNode->setCore(SmokeParticleCore);
// Make Main Scene Node and add the Torus
NodeRefPtr scene = makeCoredNode<Group>();
scene->addChild(ExplosionParticleNode);
scene->addChild(SmokeParticleNode);
scene->addChild(VortexBeacon);
TutorialWindow->connectKeyTyped(boost::bind(keyTyped, _1,
&sceneManager,
AgeFunc.get()));
sceneManager.setRoot(scene);
// Show the whole Scene
sceneManager.showAll();
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"06Explosion");
//Enter main Loop
TutorialWindow->mainLoop();
}
osgExit();
return 0;
}
virtual void keyPressed(const KeyEventUnrecPtr e)
{
if(e->getKey() == KeyEvent::KEY_Q && e->getModifiers() & KeyEvent::KEY_MODIFIER_CONTROL)
{
TutorialWindow->closeWindow();
}
else
{
switch(e->getKey())
{
case KeyEvent::KEY_B:
{ // check if the burst generator is null
if(ExampleBurstGen == NULL)
{
ExampleBurstGen = OSG::BurstParticleGenerator::create();
ExampleBurstGen->setPositionDistribution(createPositionDistribution());
ExampleBurstGen->setBurstAmount(20);
ExampleBurstGen->setVelocityDistribution(createVelocityDistribution());
ExampleBurstGen->setNormalDistribution(createNormalDistribution());
ExampleBurstGen->setLifespanDistribution(createLifespanDistribution());
ExampleBurstGen->setSizeDistribution(createSizeDistribution());
}
// attach the burst generator
ExampleParticleSystem->pushToGenerators(ExampleBurstGen);
}
break;
case KeyEvent::KEY_P:
{ // increase trail resolution
ExampleTrailGenerator->setTrailResolution(ExampleTrailGenerator->getTrailResolution() * 0.70 + 0.0001);
std::cout << "Trail Resolution: " << ExampleTrailGenerator->getTrailResolution() << std::endl;
break;
}
case KeyEvent::KEY_L:
{ // decrease trail resolution
ExampleTrailGenerator->setTrailResolution(ExampleTrailGenerator->getTrailResolution() * 1.25);
std::cout << "Trail Resolution: " << ExampleTrailGenerator->getTrailResolution() << std::endl;
break;
}
case KeyEvent::KEY_O:
{ // increase trail length
ExampleTrailGenerator->setTrailLength(ExampleTrailGenerator->getTrailLength() * 1.25 + 0.1);
std::cout << "Trail Length: " << ExampleTrailGenerator->getTrailLength() << std::endl;
break;
}
case KeyEvent::KEY_K:
{ // decrease trail length
ExampleTrailGenerator->setTrailLength(ExampleTrailGenerator->getTrailLength() * 0.7);
std::cout << "Trail Length: " << ExampleTrailGenerator->getTrailLength() << std::endl;
break;
}
case KeyEvent::KEY_I:
{ // toggle lines/points as trail draw method
ExampleTrailGenerator->setDrawMethod((ExampleTrailGenerator->getDrawMethod() == SimpleParticleTrailGenerator::LINES)?
(SimpleParticleTrailGenerator::POINTS):(SimpleParticleTrailGenerator::LINES));
break;
}
case KeyEvent::KEY_J:
{ // toggle trail length method
ExampleTrailGenerator->setTrailLengthMethod((ExampleTrailGenerator->getTrailLengthMethod() == ParticleTrailGenerator::NUM_POINTS)?
(ParticleTrailGenerator::TIME):(ParticleTrailGenerator::NUM_POINTS));
std::cout << "Trail Length: " << (ExampleTrailGenerator->getTrailLengthMethod() == ParticleTrailGenerator::NUM_POINTS ? "Num Pts":"Time") << std::endl;
break;
}
case KeyEvent::KEY_Y:
{ // toggle trail spacing method
ExampleTrailGenerator->setTrailResolutionMethod((ExampleTrailGenerator->getTrailResolutionMethod() == ParticleTrailGenerator::TIME_SPACING)?
(ParticleTrailGenerator::DISTANCE_SPACING):(ParticleTrailGenerator::TIME_SPACING));
std::cout << "Trail resolution: " <<(ExampleTrailGenerator->getTrailResolutionMethod() == ParticleTrailGenerator::TIME_SPACING ? "Time Spacing" : "Distance Spacing") << std::endl;
break;
}
case KeyEvent::KEY_V:
{
mgr->getRenderAction()->setVolumeDrawing(!mgr->getRenderAction()->getVolumeDrawing());
}
}
}
}
int main(int argc, char **argv)
{
// OSG init
osgInit(argc,argv);
// Set up Window
TutorialWindow = createNativeWindow();
TutorialWindow->initWindow();
TutorialWindow->setDisplayCallback(display);
TutorialWindow->setReshapeCallback(reshape);
TutorialKeyListener TheKeyListener;
TutorialWindow->addKeyListener(&TheKeyListener);
TutorialMouseListener TheTutorialMouseListener;
TutorialMouseMotionListener TheTutorialMouseMotionListener;
TutorialWindow->addMouseListener(&TheTutorialMouseListener);
TutorialWindow->addMouseMotionListener(&TheTutorialMouseMotionListener);
// Create the SimpleSceneManager helper
mgr = new SimpleSceneManager;
// Tell the Manager what to manage
mgr->setWindow(TutorialWindow);
// Material point chunk, so particles are drawn as points
PointChunkRefPtr PSPointChunk = PointChunk::create();
PSPointChunk->setSize(5.0f);
PSPointChunk->setSmooth(true);
// Material blend chunk
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
LineChunkRefPtr PSLineChunk = LineChunk::create();
//Texture Chunk
TextureObjChunkRefPtr PSTexChunk = OSG::TextureObjChunk::create();
//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(PSPointChunk);
PSMaterial->addChunk(PSBlendChunk);
PSMaterial->addChunk(PSLineChunk);
PSMaterial->addChunk(PSTexChunk);
PSMaterial->setTransparencyMode(Material::TransparencyForceTransparent);
// Creating a particle generator
RateParticleGeneratorRefPtr ExampleGenerator = OSG::RateParticleGenerator::create();
//Attach the function objects to the Generator
ExampleGenerator->setPositionDistribution(createPositionDistribution());
ExampleGenerator->setGenerationRate(8.0);
ExampleGenerator->setVelocityDistribution(createVelocityDistribution());
ExampleGenerator->setLifespanDistribution(createLifespanDistribution());
ExampleGenerator->setSizeDistribution(createSizeDistribution());
//Creating Particle System
ExampleParticleSystem = OSG::ParticleSystem::create();
// add a couple temp particles so the camera is zoomed out
ExampleParticleSystem->addParticle(OSG::Pnt3f(0,0,-100),OSG::Vec3f(0,1,0),OSG::Color4f(1,1,1,1),OSG::Vec3f(1,1,1),0.1,OSG::Vec3f(0,0,0),OSG::Vec3f(0,0,0));
ExampleParticleSystem->addParticle(OSG::Pnt3f(0,0,100),OSG::Vec3f(0,1,0),OSG::Color4f(1,1,1,1),OSG::Vec3f(1,1,1),0.1,OSG::Vec3f(0,0,0),OSG::Vec3f(0,0,0));
ExampleParticleSystem->setMaxParticles(200);
ExampleParticleSystem->attachUpdateListener(TutorialWindow);
//Creating Particle System Drawer
PointParticleSystemDrawerRefPtr ExampleParticleSystemDrawer = OSG::PointParticleSystemDrawer::create();
ExampleParticleSystemDrawer->setForcePerParticleSizing(true);
// Attaching affector and generator to the particle system
ExampleParticleSystem->pushToGenerators(ExampleGenerator);
//Particle System Core, setting its system, drawer, and material
ParticleSystemCoreRefPtr ParticleNodeCore = OSG::ParticleSystemCore::create();
ParticleNodeCore->setSystem(ExampleParticleSystem);
ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer);
ParticleNodeCore->setMaterial(PSMaterial);
// Create Trail Generator(s)
// simple trail generator
ExampleTrailGenerator = OSG::SimpleParticleTrailGenerator::create();
ExampleTrailGenerator->setTrailResolution(2.5f);
ExampleTrailGenerator->setDrawMethod(SimpleParticleTrailGenerator::POINTS);
ExampleTrailGenerator->setTrailLength(3.12);
ExampleTrailGenerator->setTrailLengthMethod(ParticleTrailGenerator::TIME);
ExampleTrailGenerator->setTrailResolutionMethod(ParticleTrailGenerator::DISTANCE_SPACING);
ExampleTrailGenerator->setTrailMaterial(PSMaterial);
// attach listener for trail generator to the particle system
ExampleParticleSystem->addParticleSystemListener(ExampleTrailGenerator->getParticleSystemListener());
// Set up node with the particle system at its core
NodeRefPtr ParticleNode = OSG::Node::create();
ParticleNode->setCore(ParticleNodeCore);
// add the trail generator to the scene
ParticleNode->addChild(ExampleTrailGenerator);
// Make Main Scene Node
NodeRefPtr scene = OSG::Node::create();
scene->setCore(OSG::Group::create());
scene->addChild(ParticleNode);
mgr->setRoot(scene);
// Show the whole Scene
mgr->showAll();
mgr->getCamera()->setFar(10000.0f);
mgr->getCamera()->setNear(0.1f);
mgr->setStatistics(true);
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"01ParticleTrail");
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
<< "I: Toggle drawing trails as points/lines" << 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;
}
int main(int argc, char **argv)
{
// OSG init
osgInit(argc,argv);
// Set up Window
TutorialWindow = createNativeWindow();
TutorialWindow->initWindow();
TutorialWindow->setDisplayCallback(display);
TutorialWindow->setReshapeCallback(reshape);
TutorialKeyListener TheKeyListener;
TutorialWindow->addKeyListener(&TheKeyListener);
TutorialMouseListener TheTutorialMouseListener;
TutorialMouseMotionListener TheTutorialMouseMotionListener;
TutorialWindow->addMouseListener(&TheTutorialMouseListener);
TutorialWindow->addMouseMotionListener(&TheTutorialMouseMotionListener);
// Create the SimpleSceneManager helper
mgr = new SimpleSceneManager;
// Tell the Manager what to manage
mgr->setWindow(TutorialWindow);
//Particle System Material
LineChunkRefPtr PSLineChunk = LineChunk::create();
PSLineChunk->setWidth(1.0f);
BlendChunkRefPtr PSBlendChunk = BlendChunk::create();
PSBlendChunk->setSrcFactor(GL_SRC_ALPHA);
PSBlendChunk->setDestFactor(GL_ONE_MINUS_SRC_ALPHA);
MaterialChunkRefPtr PSMaterialChunk = MaterialChunk::create();
PSMaterialChunk->setAmbient(Color4f(0.3f,0.3f,0.3f,1.0f));
PSMaterialChunk->setDiffuse(Color4f(0.7f,0.7f,0.7f,1.0f));
PSMaterialChunk->setSpecular(Color4f(0.9f,0.9f,0.9f,1.0f));
PSMaterialChunk->setColorMaterial(GL_AMBIENT_AND_DIFFUSE);
PSMaterialChunk->setLit(false);
ChunkMaterialRefPtr PSMaterial = ChunkMaterial::create();
PSMaterial->addChunk(PSLineChunk);
PSMaterial->addChunk(PSMaterialChunk);
PSMaterial->addChunk(PSBlendChunk);
//Particle System
ParticleSystemRefPtr ExampleParticleSystem = ParticleSystem::create();
ExampleParticleSystem->attachUpdateListener(TutorialWindow);
//Create the particles
UInt32 NumParticlesToGenerate(2500);
Distribution3DRefPtr PositionDistribution = createPositionDistribution();
Distribution3DRefPtr NormalDistribution = createNormalDistribution();
Distribution3DRefPtr ColorDistribution = createColorDistribution();
Distribution3DRefPtr SizeDistribution = createSizeDistribution();
Distribution1DRefPtr LifespanDistribution = createLifespanDistribution();
Distribution3DRefPtr VelocityDistribution = createVelocityDistribution();
Distribution3DRefPtr AccelerationDistribution = createAccelerationDistribution();
Pnt3f PositionReturnValue;
Vec3f NormalReturnValue = Vec3f(0.0,0.0f,1.0f);
Color4f ColorReturnValue = Color4f(1.0,1.0f,1.0f, 1.0f);
Vec3f SizeReturnValue;
Time LifespanReturnValue = -1;
Vec3f VelocityReturnValue;
Vec3f AccelerationReturnValue;
for(UInt32 i(0) ; i< NumParticlesToGenerate ; ++i)
{
if(PositionDistribution != NULL)
{
PositionReturnValue.setValue(PositionDistribution->generate().getValues());
}
if(ColorDistribution != NULL)
{
Vec3f ColorRGB = ColorDistribution->generate();
ColorReturnValue.setValuesRGBA(ColorRGB[0],ColorRGB[1],ColorRGB[2],1.0f);
}
if(SizeDistribution != NULL)
{
SizeReturnValue = SizeDistribution->generate();
}
if(LifespanDistribution != NULL)
{
LifespanReturnValue = LifespanDistribution->generate();
}
if(VelocityDistribution != NULL)
{
VelocityReturnValue = VelocityDistribution->generate();
}
ExampleParticleSystem->addParticle(PositionReturnValue,
NormalReturnValue,
ColorReturnValue,
SizeReturnValue,
LifespanReturnValue,
VelocityReturnValue,
AccelerationReturnValue
);
}
//Particle System Drawer
LineParticleSystemDrawerRefPtr ExampleParticleSystemDrawer = LineParticleSystemDrawer::create();
ExampleParticleSystemDrawer->setLineDirectionSource(LineParticleSystemDrawer::DIRECTION_VELOCITY);
ExampleParticleSystemDrawer->setLineLengthSource(LineParticleSystemDrawer::LENGTH_SIZE_X);
ExampleParticleSystemDrawer->setEndPointFading(Vec2f(0.0f,1.0f));
//Particle System Node
ParticleSystemCoreRefPtr ParticleNodeCore = ParticleSystemCore::create();
ParticleNodeCore->setSystem(ExampleParticleSystem);
ParticleNodeCore->setDrawer(ExampleParticleSystemDrawer);
ParticleNodeCore->setMaterial(PSMaterial);
NodeRefPtr ParticleNode = Node::create();
ParticleNode->setCore(ParticleNodeCore);
// Make Main Scene Node and add the Torus
NodeRefPtr scene = Node::create();
scene->setCore(Group::create());
scene->addChild(ParticleNode);
mgr->setRoot(scene);
// Show the whole Scene
mgr->showAll();
//Open Window
Vec2f WinSize(TutorialWindow->getDesktopSize() * 0.85f);
Pnt2f WinPos((TutorialWindow->getDesktopSize() - WinSize) *0.5);
TutorialWindow->openWindow(WinPos,
WinSize,
"02DynamicDistribution");
//Enter main Loop
TutorialWindow->mainLoop();
osgExit();
return 0;
}
