So I am currently working on an underwater scene, experimenting with creating a post-process material to get the underwater look, using scene depth to create a custom fog for the water!
At the same time, I started creating bubbles, but in the PP material, they don’t show unless they have a background… This territory is new to me ,so I can’t really figure out how to fix it. Any help would be appreciated!
The nodes for the Fogdepth (If I disable it, the bubbles show just fine, so the problem is here)
Bubble material
Without the PP on
With PP on, you only see bubbles at the bottom because as mention, they only appear if I got a background visible.



