FGFS-4.1/OpenSceneGraph
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Added extra controls for ParticleEffects.

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This commit is contained in:
Robert Osfield
2005-03-23 17:05:21 +00:00
parent 60597f4bbb
commit aee1e88f15
10 changed files with 239 additions and 139 deletions
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51
src/osgParticle/ExplosionEffect.cpp
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@@ -27,9 +27,15 @@
using namespace osgParticle;
ExplosionEffect::ExplosionEffect()
ExplosionEffect::ExplosionEffect(const osg::Vec3& position, float scale, float intensity)
{
setDefaults();
_position = position;
_scale = scale;
_intensity = intensity;
buildEffect();
}
ExplosionEffect::ExplosionEffect(const ExplosionEffect& copy, const osg::CopyOp& copyop):
@@ -38,6 +44,11 @@ ExplosionEffect::ExplosionEffect(const ExplosionEffect& copy, const osg::CopyOp&
}
void ExplosionEffect::setDefaults()
{
ParticleEffect::setDefaults();
}
void ExplosionEffect::setUpEmitterAndProgram()
{
osgParticle::ParticleSystem *ps = new osgParticle::ParticleSystem;
ps->setDefaultAttributes("Images/particle.rgb", false, false);
@@ -64,28 +75,28 @@ void ExplosionEffect::setDefaults()
osg::Vec4(0.5, 0.5f, 0.0f, 0.0f)));
// these are physical properties of the particle
ptemplate.setRadius(0.1f); // 5 cm wide particles
ptemplate.setMass(1.0f); // 1kg heavy
ptemplate.setRadius(0.1f*_scale); // 5 cm wide particles
ptemplate.setMass(1.0f*_scale); // 1kg heavy
// assign the particle template to the system.
ps->setDefaultParticleTemplate(ptemplate);
//osgParticle::LimitedDurationRandomRateCounter* counter = new osgParticle::LimitedDurationRandomRateCounter;
osgParticle::RandomRateCounter* counter = new osgParticle::RandomRateCounter;
counter->setRateRange(2000,2000); // generate 1000 particles per second
counter->setRateRange(2000*_intensity,2000*_intensity); // generate 1000 particles per second
emitter->setCounter(counter);
osgParticle::SectorPlacer* placer = new osgParticle::SectorPlacer;
placer->setCenter(osg::Vec3(0.0,0.0,0.0));
placer->setRadiusRange(0.0f,1.0f);
placer->setCenter(_position);
placer->setRadiusRange(0.0f,1.0f*_scale);
emitter->setPlacer(placer);
osgParticle::RadialShooter* shooter = new osgParticle::RadialShooter;
shooter->setThetaRange(0.0f, osg::PI_2);
shooter->setInitialSpeedRange(5.0f,30.0f);
shooter->setInitialSpeedRange(5.0f*_scale,30.0f*_scale);
emitter->setShooter(shooter);
emitter->setStartTime(0.0f);
emitter->setStartTime(_startTime);
emitter->setResetTime(5.0f);
emitter->setLifeTime(0.1f);
emitter->setEndless(false);
@@ -113,29 +124,5 @@ void ExplosionEffect::setDefaults()
}
buildEffect();
}
void ExplosionEffect::buildEffect()
{
// clear the children.
removeChild(0,getNumChildren());
if (!_emitter || !_particleSystem || !_program) return;
// add the emitter
addChild(_emitter.get());
// add the program to update the particles
addChild(_program.get());
// add the particle system updater.
osgParticle::ParticleSystemUpdater *psu = new osgParticle::ParticleSystemUpdater;
psu->addParticleSystem(_particleSystem.get());
addChild(psu);
// add the geode to the scene graph
osg::Geode *geode = new osg::Geode;
geode->addDrawable(_particleSystem.get());
addChild(geode);
}