pyro simulation is very slow for moving source?

[curveU]

I'm doing some pyro tests and notice if I use a moving geometry (like a moving sphere) as source, the sim is very slow. Anyone could let me know the reasion?

Thanks,

[sidandmj]

it all depends on how you are moving the source geos

if you are using the "use animated geo" toggle, the sdf for the object(s) is getting rebuilt every frame.

if you dont need the geometry to deform you should use the object level transforms as the sim will only build the sdf on the first frame of the sim

you can also cache the sdf to disk as this will help dramatically if you need deforming geometry. they can be saved as .simdata from the Collision/Volume tab on any rbd or static object

I'm doing some pyro tests and notice if I use a moving geometry (like a moving sphere) as source, the sim is very slow. Anyone could let me know the reasion?

Thanks,