Liquid to Solid effect

[Luchifer]

Hey folks,

I'm doing an animation with a couple of PhoenixFD shots and one shot will be a product hitting the floor, splashing into liquid, the liquid gets drawn up into a logo and solidify.

So far I have the drop, the splash and then the liquid forming the logo but I just need to work out how to solidify the liquid at the end.

I kind of want the effect seen on the Vue Cinema Intros (can be seen on the link as the cola turns into close up leather at the 27 second mark).

Is this like a time slow down on the fluid till it stops and a material change with displacement at the same time? Could I do that with liquid forming smooth text?

[Svetlin.Nikolov]

Ah yes, so you can go about it in at least two ways - you could use a Phoenix 4.x Voxel Tuner or Mapper to raise the viscosity in the end, but note that it's going to be very solid only if the scene scale or steps per frame are high enough - please look up the threads on viscosity and solidity here in the forums. Alternatively, or in a combination with the viscosity approach, you could retime the simulation to a hold either by animating the Time Scale under Dynamics (this would require you to simulate again and again if you are not happy with the animation), or use Direct Frame Index mode and animate the frame index under Input (this can happen entirely post simulation, just check the docs on the option for the particle channels you need to enable under Output).

Indeed you could add render time displacement either from the Phoenix rendering rollout, or by using the displacement modifier of your renderer (are you in Max, btw?)

And you could form text, with or without viscosity, using the Body Force - something along the lines of this example: https://docs.chaosgroup.com/display/...orceTextFillup. The liquid surface might not be very smooth though - check the example - its smoothness can be improved by using Input rollout smoothing alone or in combination with the Mesh Smoothing under the rendering rollout (also using the option where Liquid Particles aid the mesher).

Hope this helps

[Ivaylo Katev]

You can avoid significant amount of efforts to control the simulation (this is always hard) with using reversed animation. It's relatively easy to create perfect looking liquid in any shape, then let it go. Reversing the animation you get liquid that starts from free state and ends as solid geometry.

[Luchifer]

Ok thank you Svetlin, I will try those methods. I am using Max and I have formed the text with the body force helper. It's just with the inertia, it wobbles around a lot.

Ivaylo, thank you for the suggestion but it would be very difficult for me to reverse the animation, I am doing one continuous camera shot for this.