How can I change the color value of ParticleSystem component

[hoanguyen]

Hi everybody
How can I change the color value of particleSystem component using script ?

[Leonidas]

Hi @hoanguyen,

Check the following thread, it’s old but I think this holds true to day. Particles use a pc.CurveSet for coloring so it’s a bit more complex than setting a single value:

ParticleSystem change color on runtime

Hello, I am doing something like this to change in code the color of a ParticleSystem. this.entityParticleEngine.particlesystem.colorGraph.curves[0].keys[0][1] = 0.2; this.entityParticleEngine.particlesystem.colorGraph.curves[1].keys[0][1] = 0.2; this.entityParticleEngine.particlesystem.colorGraph.curves[2].keys[0][1] = 0.85; It works correctly if I do this during initialization. But on runtime, in the update(dt) function, it doesn’t affect the color. Do we have do some sort of update on …

https://developer.playcanvas.com/en/api/pc.ParticleSystemComponent.html#colorGraph

[hoanguyen]

@ParticleSystem change color on runtime

But on runtime, in the update(dt) function, it doesn’t affect the color. Do we have do some sort of update on …

Unfortunately I want it to change over time. Is there any other way to achieve this?

[Leonidas]

I am not sure that’s doable without a performance hit, since each color change requires recreating data for the emitter.

But the color curve set in editor allows you to have a different color from start to end of the particle lifetime, wouldn’t that work for you?