Niagara particles do not collide with geometry collections

I’m making a rock sculpture with Niagara particles
and I have a cliff made with geometry cache
and I’m trying to collide the rock sculpture with the cliff
but it doesn’t recognize the geometry cache as a collider at all
how can I set it up so that it collides?

Hello there @XD_XD2!

From what I could gather around the community, what you are encountering here is a conflicted interaction between geo collections and caches. I would suggest creating an invisible, proxy collision mesh around your cliff, and set it as a collision surface for the Niagara particles. Alternatevily, you can enable GPU Raytracing Collisions for Niagara, following the guide below:

If you need more resources related to Niagara and collisions, please check the following tutorials: