Jump to content
ParticleSkull

FLIP - Awaken by Geometry

Recommended Posts

Hey guys, is there something like the grains shelf tool "Awaken by Geometry" to work on FLIP? Or just some way to keep a flip tank settled/static.

I need to have a flat surface of water (i'm doing it with a flip tank) but I need it to be very flat, like a mirror, and only move where the object touch.

That's what happens as soon as I start the simulation:



Thank's

Share this post


Link to post
Share on other sites

Hi Alvaro,

 

I think it's because you have jitter set on the emitter, set it 0.

Share this post


Link to post
Share on other sites

Hey Cristobal, thx! But I couldn't find any jitter parameter on the flip tank sim.

In fact I've realized that the water stay steady when I have no gravity on the scene. I'm wondering, with no gravity, the particles aquire some velocity when the torus touch them. Could I use this velocity to activate a pop force?

Something like @v != 0 on the activation field of the force? 



Thanks again

Share this post


Link to post
Share on other sites

I created a default FLIP tank and set the jitter scale to 0. Then in the FLIP Object Initialize Velocity to 0,0,0. In the FLIP Solver turn off Apply External Forces. This seemed to give me a completely still tank.

ap_still_flip_tank.hipnc

Edited by Atom

Share this post


Link to post
Share on other sites

Are you using the Scatter option on the Particle Fluid Tank SOP? Those extra surface particles can help create a smoother surface to start.  

 

Another option is to use APIC (Swirly Kernel) which cuts down on surface noise.  Or use APIC and run 20-30 frames until the fluid settles down, write those particles to disk, then use them as the initial state for a regular (possibly Splashy Kernel) FLIP sim.

Share this post


Link to post
Share on other sites

Hey John,

I've done some tests with APIC +  a drag force, running the sim for a few frames and it looks like it will work properly. Thx!!!

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×