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Particle system pauses when off-screen
I've noticed that in my version of Unity 4.0.0f7, shuriken particle systems pause themselves when they are off-screen (i.e. not in the main camera frustum).
So, for instance, if I spawn an explosion behind the camera, then after a pause I turn the camera round, the explosion only begins playing as it comes into shot.
I assume this is a way of conserving CPU time as off-screen particles do not get played. But is there a way to turn this "feature" off?
Answer by codescape · Apr 13, 2013 at 10:26 AM
I noticed the same behaviour on child emitters, when the Duration setting on the parent emitter is greater, than that on the children. So, it may help to check that.
Answer by TMPxyz · Jul 10, 2014 at 07:15 AM
I have seen that too, I'm using a pool for ParticleSystem, and after several times, the re-used ParticleSystem will start to pause when offscreen, not sure why.