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View Full Version : How Do I ??? - Make realistic polar caps using GIMP's noise and fractal features?



Omnigeek6
02-25-2011, 10:26 PM
Hi, complete newbie here.

I have been attempting to create a planet texture in GIMP. The "Filter > Render > Clouds" options seem pretty good at making sparce continents and islands, but after struggling for a couple hours I am forced to admit I haven't got a clue how to make realistic polar caps. I'd really appreciate if someone could give me advice on this.

jfrazierjr
02-26-2011, 10:23 AM
Get the Felimage plug in. It allows MUCH more fine grain cloud effects.

RobA
02-28-2011, 10:12 PM
Get the Felimage plug in. It allows MUCH more fine grain cloud effects.

and polar mapping of the noise.

-Rob A>

Omnigeek6
03-01-2011, 03:07 AM
Thanks for being helpful, but this isn't quite what I meant. I guess I need to be more specific.

I am making these textures for use in a program called Universe Sandbox, which takes mercator projections and maps them onto spheres. As a consequence, to render my polar caps I need white areas at the top and bottom of the image with a fractal-looking border, which gradually have less white the farther they get from the top and bottom edges, but do not lose opacity, only size and frequency of white areas.