Dear Houdini Users,

I'm trying to recreate a basic dynamics (soft body with a floor) setup in Houdini without luck. I made the grid for the floor intentionally.

I uploaded the scene file.

Thanks if you helping me. Have a nice day all of you.

In the dopnet, ‘grid1’ (the static object), you've left it in its default state to collide against a volume. Because your grid is an infinitely thin polygon plane, it can't be converted to a volume, so it can't collide.

Several ways to fix:

Turn off ‘use volume based collision detection’

OR

Convert your grid to something that can be made into a volume. A lazy way is to go back to your grid sop, and insert an ‘extrude volume’ between the grid sop and the attribcreate sop.

OR

use a ground plane dop instead.