I tried to set the path to some other diffuse and vegetation maps like "Textures/diffuse_new.jpg" as a relative and "c:/..../diffuse_new.jpg" in the json files of some of the planets but it didn't work. Tried with (equirectangular) *.png files as well but it just doesn't work.
So I've changed the reference files using the ones we can see in the predefined planets and moons like IO and so on, like:
"ColorMapSource":"Textures/Planets/io_diffuse",
"HeightMapSource":"Textures/Planets/ganymede_height"
and changed the temperature, the colours and the water.
Is there a way to use external files for height, diffuse, vegetation and clouds?
M.
This is what I've got: