Initial Fill Waterlevel Collapses

[nukemodular]

Hi,

i tried to do a just simple scene with a container filled with "water" and an object dropping in.

as soon i set the initaial fill up level to about 80%, it fills up but collapses afterwards. why is that?

im using maya w. vray 3 and phoenix nightly build 25583

[Svetlin.Nikolov]

Hello, try to increase the Steps per frame to about 4-8. Are you using the Classic advection?

[nukemodular]

Yes, Classic.

its getting better but its still bouncing up and down. strange.

[Ivaylo Katev]

how much is the physical size of the container? if the container is just few cm or smaller, you need extremely high spf for stable behavior

[nukemodular]

hi,
so my container is 25x25x56 units - unit = cm ...so it's not that small.

but here is the scene...when raising the cells (decreasing the cellsize) it's getting worse. looks unstable and wobbly.

LogoDrop.zip

sorry i put maya binary at first but the other one should be ascii

[Ivaylo Katev]

sounds like small size of the container, but we wil see the scene.
containers about one meter wide require spf 2 or more. container 25 cm requires spf about 10 and as you mentioned the smaller cells will make it worse. my suggestion - just increase the spf up to values where the sim becomes stable, or use fake bigger scale. i have seen this trick used in many movies, not trained user can't recognize that the scale is bigger.