I’ve tried different blend modes and various expressions trying to add/subtract/invert scene color to get this to work but I just can’t figure it out.
I have a custom Lat/Long skydome and I want the clouds to obscure the planet as they pan.
Or to place the planet outside and somehow use the blue channel of the sky dome material to reveal the planet.
Screenshot of simple opaque default lit material with planet inside skybox bounds
OK almost got it. Had to spherize the planet texture and have added it into the skybox texture.
Accounting for the distortion of a square texture nested into a spherical projection and refining the mask are going to be hard-ish.
Adding in the atmospheric fake for the color won’t be as hard.
Here’s the solution in its early stages
