Flip particles overflow and disappear ？

[tongmeng]

Seek help  I want to let the water in the cup according to the animation do not overflow, how can we do it, and according to the path of the animation, the particles disappear a lot, this is what the problem?

cup.hip

[sohey]

Demo mov:cup_sohey.mov

 

Hi Meng Tong,

 

I add a pop wrangle and some pop drag like this:

 

I find those particles whose positions are in the volume of the cup (SDF < 0).

Then, I push them back to where they "should be", and adjust their velocities to slide along the surface.

 

I didn't change other settings, so there are still few particles leaking out of the cup.

I think increasing substeps a little more can improve that.

 

 

--sohey

cup_sohey.hipnc

cup_sohey.mov