We're now onto the icy bodies, which share a lot of the shader code from the barren worlds. Looking at the icy moons and dwarf planets around our solar system you'll find a fairly significant amount of Tholins giving those bodies their reddish brown hues. I've taken that into account with the colour palettes, so a lot of the icy planets will resemble variations on this:
I'm also using the generated heightmap data to drive the surface roughness values, so if we take away the Tholins and go with relatively pure ice you get some really breath taking sun reflections:
Next up is the lava worlds, which should be the last shader to polish up for a new alpha build :)
https://discord.gg/eDSQvpgdUX