j3d.examples.particles.influences
Class FadeShape

java.lang.Object
  j3d.examples.particles.influences.Shape3DInfluence
      j3d.examples.particles.influences.FadeShape

All Implemented Interfaces:

IExternalInfluence

public class FadeShape
extends Shape3DInfluence
implements IExternalInfluence

Constructor Summary

FadeShape()
Fade the opacity of a particle shape from fully opaque (transparency = 0) to fully transparent (transparency = 1) over the life of the affected particles.

FadeShape(ParticleAgeAlpha anAlpha)
Fade the alpha component of the color of a shape based on the ParticleAgeAlpha object over the life of the affected particle.

Method Summary

void	apply(Particle aParticle, float dt) Apply this (possibly time varying) influence to the particle for the time interval.
void	initializeParticle(Particle aParticle) Initialize a particle prior to the first emission.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FadeShape

public FadeShape()

Fade the opacity of a particle shape from fully opaque (transparency = 0) to fully transparent (transparency = 1) over the life of the affected particles.

FadeShape

public FadeShape(ParticleAgeAlpha anAlpha)

Fade the alpha component of the color of a shape based on the ParticleAgeAlpha object over the life of the affected particle. The value returned by the ParticleAgeAlpha object represents the opacity of the particle.

Parameters:

anAlpha - - The particle age alpha to control the opacity of the shape.

Method Detail

initializeParticle

public void initializeParticle(Particle aParticle)

Description copied from interface: IExternalInfluence

Initialize a particle prior to the first emission.

Specified by:

initializeParticle in interface IExternalInfluence

Parameters:

aParticle - - the particle to initialize.

apply

public void apply(Particle aParticle,
                  float dt)

Description copied from interface: IExternalInfluence

Apply this (possibly time varying) influence to the particle for the time interval.

Specified by:

apply in interface IExternalInfluence

Parameters:

aParticle - - The particle to update

dt - - The time interval (in seconds) since the last apply