How to handle collision SDF for FLIP

[sipi]

I'm trying to get an understanding on how to handle properly a collision sdf vdb with flip simulations. (See the video and hip.)

In the video I demonstrate two subject matter.
1. I wonder why do the particles go crazy if I turn on Fill Interior for the collision vdb?
2. Should I prevent the collision vdb to go outside the Boundary Layer in general?

(the guided ocean layer setup was set by the shelf tool)

Best wishes,
Attila Sipos

collision_sdf_for_flip.hiplc

[paranoidx]

When I turn `reseeding` off, it's fine

It could be some problem with the detect collision to kill particle inside the tank with collision -> when `fill interior` checked which enable the remove collision from surface for FLIP, it used volume wrangle to remove from @surface. The particle from initial not delete however it's fine after that

image: https://imgur.com/a/9JKfvdd

Love to discuss more if you find something

****

I did keep `reseed particles` on, then enable `single pass reseeding` which help much because it is using guided simulation. There is no issue with particles reseed initial

Image: https://imgur.com/BTqDvZ3

 

Edited February 27 by paranoidx
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