Voxel & Flip Simulation

[Strife]

I am planning to use voxel fluid as a base to fill up the place and a layer of flip fluid on top to mimic wave. I wanted to use those to simulate a flood sequence, can anybody help me get started? Thanks you

[Macha]

Here is a volume and a flip fluid, the flip being generated at the volume fluid's surface.

To be honest I'm not sure this is a good way. I think you'll end up with more trouble than it's worth. You should probably make 2 different dopnets, not 2 sims in 1 as in this example.

Perhaps what you could do instead is to use a smoke sim with heavy heavy smoke and then use its velocity to advect the particles of a flip sim.

Maybe it gives you some ideas.

flipflopfluidvol.hip

Edited March 22, 2011 by Macha

[Strife]

Hey Macha, thanks for the help. But i have another question like what if i wanted the flip fluid don't intercept or only on top of voxel fluid, how can i do that?

[Macha]

This setup uses smoke to emit a flipfluid on its top surface and then imparts an upwards force to all particles entering its density, so in general they will float on top of the smoke.

flipflopfluidvoltop.hip

[Macha]

Similar idea, different implementation.

I use a voppop or a vopforce to achieve boyancy. It is slightly slower but far more predictable.

I disabled the vopforce in this example and only the voppo works (it can be multithreaded, vopforce gets quite slow)

I think there may be a way with the gas field vop as well but I haven't quite figured out how to make it act like a force yet.

flipflopfluidvoltoppopvopforce.hip

[Macha]

And a little pic for good measure.

[Strife]

oh cool, I like the one with the smoke as base for fast sim. Thanks man. But do you mind explaining briefly how u do it? I am kinda, a little bit confuse. Thanks so much for the help.

[Annon]

Nice one Macha!

Will dig into this properly over the week.