Hi guys,

I need the grains to preserve their basic shape, but after simulation, it starts to shrink.

How can I fix this?



Thanks for helping.

Hey Masoud,

You can start the grains in a sleeping state. And wake them up on force with the awake node. But they will lose some volumen on simulation though. It helps to increase collision steps but also slows down sim speed. I would suggest you sim them for a few frames until they settle. Use this state then as your starting point.

Cheers
CYTE

Hi CYTE,

I tried "awake node" and it works fine, so thanks.

Hi guys,

I found this helpful document on the SideFX help page:
https://www.sidefx.com/docs/houdini/grains/stablepile.html [www.sidefx.com]