Alright I have this scene that I use particles on a volume material to generate volumetric fog on the ground. I want to then be able to cull out a circle in the middle as the character moves through the fog. I have tried particle collisions but that wont give me a big enough radius that I want to cull and even using a sphere collider around the character wont work because then the particles will spawn inside.
I am looking for something to subtract volumetric fog from a volume of space.