I have checked that. The material crashes with a noise shape > 64x64x64, like the one there with 128x128x128. It uses a weather texture to tell where to form clouds, but that is tilled and too repetitive, exactly what it should not be for a planetary scale, the result for that material is not pretty and thats why I didn’t showed in the tutorial. Currently I think there is still too much they didn’t pushed into GitHub and most of those are clearly not what we will get. Again, the key will be the ability for the people to author the textures (mainly the mask) for two purposes: local scene and planetary scene, being the last one given you the ability to move from ground view to space view and see a non-tiling cloudscape. The ways you can think about the material is not that much of a variance, but the textures definitely will need to be procedural generated for the planetary scene purpose.