FGFS-4.1/OpenSceneGraph
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Added support for wind.

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This commit is contained in:
Robert Osfield
2006-04-24 06:36:26 +00:00
parent e8fa0433b3
commit 49a5ef9ee1
3 changed files with 54 additions and 19 deletions
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39
examples/osgprecipitation/osgprecipitation.cpp
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@@ -15,8 +15,29 @@
#include <osgUtil/CullVisitor>
#include <osgProducer/Viewer>
#include <osg/MatrixTransform>
#include <osgUtil/TransformCallback>
#include <osgParticle/PrecipitationEffect>
class MyGustCallback : public osg::NodeCallback
{
public:
MyGustCallback() {}
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
{
osgParticle::PrecipitationEffect* pe = dynamic_cast<osgParticle::PrecipitationEffect*>(node);
float value = sin(nv->getFrameStamp()->getReferenceTime());
if (value<-0.5) pe->getParameters()->wind.set(5.0,0.0,0.0);
else pe->getParameters()->wind.set(1.0,0.0,0.0);
traverse(node, nv);
}
};
#if 0
osg::Node* createModel(osg::Node* loadedModel, osgParticle::PrecipitationParameters& parameters)
{
@@ -119,8 +140,10 @@ int main( int argc, char **argv )
while (arguments.read("--particleColor", parameters.particleColour.r(), parameters.particleColour.g(), parameters.particleColour.b(), parameters.particleColour.a())) {}
while (arguments.read("--particleColour", parameters.particleColour.r(), parameters.particleColour.g(), parameters.particleColour.b(), parameters.particleColour.a())) {}
osg::Vec3 particleVelocity;
while (arguments.read("--particleVelocity", particleVelocity.x(), particleVelocity.y(), particleVelocity.z() )) parameters.particleVelocity = particleVelocity;
osg::Vec3 wind;
while (arguments.read("--wind", wind.x(), wind.y(), wind.z())) parameters.wind = wind;
while (arguments.read("--particleVelocity", parameters.particleVelocity)) {}
while (arguments.read("--nearTransition", parameters.nearTransition )) {}
while (arguments.read("--farTransition", parameters.farTransition )) {}
@@ -180,8 +203,8 @@ int main( int argc, char **argv )
return 1;
}
#if 1
// precipitationEffect->setUpdateCallback(new MyGustCallback);
osg::ref_ptr<osg::Group> group = new osg::Group;
group->addChild(precipitationEffect.get());
group->addChild(loadedModel.get());
@@ -189,14 +212,6 @@ int main( int argc, char **argv )
// set the scene to render
viewer.setSceneData(group.get());
#else
loadedModel = createModel(loadedModel.get(), parameters);
// set the scene to render
viewer.setSceneData(loadedModel.get());
#endif
// create the windows and run the threads.
viewer.realize();