Martin Grådal

Hello,

I have been trying to create a custom gravity force for a flip fluid simulation that acts in reverse when particles fall below a y-value of 0. The idea is to have the fluid linger in mid air.

I have managed to do so via a vopforce vex network, but the simulation is taking considerably more time to calculate.

I have a feeling that I'm better off grouping the particles by above and below y and have two gravity nodes operate on the groups separately with opposite force directions.

First of all do you think this will optimise the simulation calculation?
And secondly how do you group flip fluid particles based on position?

I have attached my project file, in which you can see my vox network solution as well as an attempt at grouping and using gravity nodes.

I would be super thankful for any input on the matter!

Kind regards,

Martin