particles still visible in scene after their "death"

[Mr Rid]

Originally Posted by Johnny

I have a scene which uses particles, which are still visible long after emitter stops emitting and long after their +/– life time has expired.

The render times are killing me. The typical render time for most of the frames with particles is 5 minutes. Some of the frames with particles are 16 hours!

Shutting off hypervoxels remedies the render time problem, but I'm not getting truthful information: my particles' property settings say they should all be dead and gone by frame 60, yet I still see them at frame 150 in test renders!!

So, if I shut off the hypervoxels for those emitters, I'll see a sudden disappearance of particles that won't look right.

It has been brutal developing this scene. Testing has taken days because of mystery astronomical render times and need to troubleshoot their cause.

I could really use some help making these particles behave themselves, and to obey the values I've typed into their properties settings.

Thank you,

J

Um, this does not make sense. Particles do not remain in a scene beyond their life time frame value. Particles born on frame 0 with a lifetime if '10' will all disappear by frame 11. If the '+/-' is '5' then the particles will die between frames 5 and 15. But now your emitter may continue to emit new particles until it reaches the particle limit. Lower the particle limit, or envelope the birth rate to stop new particle births by a particular frame.

Voxel render time depends on variables like the amount of particles, the type, size, render Q, shadow Q, texture shadows, thickness, opacity, stretch, number of lights, number of slices.