DESCRIPTION
I was recently reminded about the cool ground fog in Mario Odyssey by this tweet https://twitter.com/Patrickd3/status/1351245697845239809
I'd always wanted to give it a try, and then I realised I had the fx setup done already from the original Environment Interaction post, and more recently the Fog of War render texture post. So here's the Fog of War, without the Of War.
Just like the Fog of War, make sure the particle systems that spawn the trails are on the correct layer that matches the Culling Mask of the envIntRTCam Camera, and is likewise absent from the Culling Mask of the Main Camera.
Let me know if there are any issues setting it up, here or on Discord.