panda3d/samples/particles/steam.ptf

self.reset()
self.setPos(0.000, 0.000, 0.000)
self.setHpr(0.000, 0.000, 0.000)
self.setScale(1.000, 1.000, 1.000)
p0 = Particles.Particles('particles-1')
# Particles parameters
p0.setFactory("PointParticleFactory")
p0.setRenderer("SpriteParticleRenderer")
p0.setEmitter("DiscEmitter")
p0.setPoolSize(10000)
p0.setBirthRate(0.2500)
p0.setLitterSize(20)
p0.setLitterSpread(0)
p0.setSystemLifespan(0.0000)
p0.setLocalVelocityFlag(1)
p0.setSystemGrowsOlderFlag(0)
# Factory parameters
p0.factory.setLifespanBase(8.0000)
p0.factory.setLifespanSpread(0.0000)
p0.factory.setMassBase(1.0000)
p0.factory.setMassSpread(0.0000)
p0.factory.setTerminalVelocityBase(400.0000)
p0.factory.setTerminalVelocitySpread(0.0000)
# Point factory parameters
# Renderer parameters
p0.renderer.setAlphaMode(BaseParticleRenderer.PRALPHAOUT)
p0.renderer.setUserAlpha(0.10)
# Sprite parameters
p0.renderer.setTexture(loader.loadTexture('steam.png'))
p0.renderer.setColor(LVector4(1.00, 1.00, 1.00, 1.00))
p0.renderer.setXScaleFlag(1)
p0.renderer.setYScaleFlag(1)
p0.renderer.setAnimAngleFlag(0)
p0.renderer.setInitialXScale(0.0025)
p0.renderer.setFinalXScale(0.0400)
p0.renderer.setInitialYScale(0.0025)
p0.renderer.setFinalYScale(0.0400)
p0.renderer.setNonanimatedTheta(0.0000)
p0.renderer.setAlphaBlendMethod(BaseParticleRenderer.PPNOBLEND)
p0.renderer.setAlphaDisable(0)
# Emitter parameters
p0.emitter.setEmissionType(BaseParticleEmitter.ETEXPLICIT)
p0.emitter.setAmplitude(1.0000)
p0.emitter.setAmplitudeSpread(0.7500)
p0.emitter.setOffsetForce(LVector3(0.0000, 0.0000, 1.0000))
p0.emitter.setExplicitLaunchVector(LVector3(0.0000, 0.0000, 0.0000))
p0.emitter.setRadiateOrigin(LPoint3(0.0000, 0.0000, 0.0000))
# Disc parameters
p0.emitter.setRadius(0.5000)
self.addParticles(p0)
f0 = ForceGroup.ForceGroup('vertex')
# Force parameters
force0 = LinearNoiseForce(0.1500, 0)
force0.setActive(1)
f0.addForce(force0)
self.addForceGroup(f0)