Greetings,

I have a sphere animated along a curve. This is the source for a pyro sim, a meteor. Im trying to get the trail it leaves to dissipate more. To dissipate linearly into where it is emitting. The dissipation parameter on the pyro solver is only reducing the density uniformly. As in the entire sim dissipates at the same time. I know it says is reduces over time, but with a 200 frame difference between the first/last smoke emitted, there density is equally reduced. The dissipation parameter is acting like a static density multiplier.

I am a beginner and appreciate any input.

In fumefx there is a strength and min density parameter to achieve this…

The problem was I had fuel inefficiency set at 1, so all fuel was kept. So there was a trail of fuel where fire/smoke was always emitting. Fuel inefficiency = length of trail.

Interesting James thanks for the information , the default is normally at 0.1 for other users.

Rob

maybe using gas dissipate