05-29-2007, 02:17 PM
Hi A
I'm not sure if you have found the solution you needed, but in the 'Subframe Sampling' topic I brought up the issue that I was getting subframe sampling issues when I tried to render a ParticleSource based simulation that used a FumeFX Birth operator to create the particles. Basically, when I simulated a ParticleSource that was emitting from particles the were moving quite fast (in my case the particles were stuck on a position object that was moving along a path and spinning - and I was trying to get streams of smoke trailing behind them) the render looked like it wasn't calculating the subframe emission of fume particles from the particle source.
The solution I found was to use the same particle system that I simmed in FFX, but instead of using a FFX Birth operator, I spawned new particles from the simmed particle flow system and piped those into a FFXFollow operator. It seems to handle the subframe stuff a bit better so I did get the smoke trails I was looking for.
conrad
I'm not sure if you have found the solution you needed, but in the 'Subframe Sampling' topic I brought up the issue that I was getting subframe sampling issues when I tried to render a ParticleSource based simulation that used a FumeFX Birth operator to create the particles. Basically, when I simulated a ParticleSource that was emitting from particles the were moving quite fast (in my case the particles were stuck on a position object that was moving along a path and spinning - and I was trying to get streams of smoke trailing behind them) the render looked like it wasn't calculating the subframe emission of fume particles from the particle source.
The solution I found was to use the same particle system that I simmed in FFX, but instead of using a FFX Birth operator, I spawned new particles from the simmed particle flow system and piped those into a FFXFollow operator. It seems to handle the subframe stuff a bit better so I did get the smoke trails I was looking for.
conrad
I moved here from Canada, and they think I'm slow, eh.