I would like to use an invisible text mesh to force rigid body particles to fall around it, thereby creating the outline of the word in the negative space. I'm using larger and irregularly shaped objects as my particles (so a little trickier than the example photo, which uses rice) and so far I've been having trouble getting a clean, readable result.
I tried creating an open faced cube as a collision container for the falling particles to keep them contained to the general area, then used text converted to a mesh and extruded as collision objects inside that larger container. So far, my particles either bounce around wildly and refuse to settle, or end up landing directly on top of the word mesh and blocking parts of the letters that I am trying to reveal in the negative space.
Any suggestions from more experienced users would be greatly appreciated! Thank you