Adding collision to a pyramid-shaped particle system

Hi all, so I have this square pyramidal particle system I got from the content examples.

What would be the best way to add collision for this?

It doesn’t need to be too exact but it can be.
I’d prefer it less exact and more general but either works.

Perhaps adding a mesh data object in the shape of your desired collision and then either turn off “Render in main pass” or just give it a masked material to make it see through? Then use that mesh data for particle collision?

So basically adding a static mesh with overlap collision in the shape of the collision I want and turning it invisible?

That would be my best guess. There really isn’t a “custom collision” module present, at least one that I’m aware of.