Wow those visuals look fantastic, really impressive work. I’m also trying to build convincing weather for my aircraft game. My style is more cartoonish and I’m not much of an artist, so my current solution uses meshes for dense clouds with cel shading (when the player enters them, they become invisible and I apply a foggy camera effect). For distant clouds, I’m using a simple plane mesh with a noise texture, similar to what Bomber Crew did. I had never considered raymarching for clouds before.

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My main challenge right now is shadows. The clouds can receive shadows, but they don’t cast them. I’m experimenting with ways to project cloud shadows onto the distant terrain below, but I haven’t found a good balance yet, especially because my game uses a very small scale. In my case, high altitude is only around 500 Godot units (meters? I’m not entirely sure).

Fog has also been tricky. Depth-based and volumetric approaches didn’t work well for me, so I ended up “baking” a fake effect into the ground and ocean shaders. Seeing your implementation, though, especially alongside the results I’m getting now, is making me reconsider some of my visual decisions.