Collide with outside only?

[izotripp]

Hi,

I have a situation where I would love to be able to have single sided collisions, by that I mean I need liquid to able to pass from the inside and out, but collide on the outside. Is this possible at all?

I've made a simple example. It seems right now the fluid collides with both sides.
If I change to inscribed it doesn't collide at all.

If the geometry has no holes then the fluid from the emitter inside the cylinder is frozen, I guess that's because phoenix creates voxels that mimick the geometry?

[ivaylo.ivanov]

Yes, the cells one way or another will be frozen and I don't think it's possible to make such flow. The cell is frozen for all it's neighbours.

[Rchapin]

You might be able to set up a cascade system. Your first fluid has the collision object ignored in the scene interaction, and it emits into a second fluid on the other side of the collision that is fed by the first.