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

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    Question How Do I ??? - Make realistic polar caps using GIMP's noise and fractal features?

    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.

  2. #2
    Community Leader jfrazierjr's Avatar
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    Get the Felimage plug in. It allows MUCH more fine grain cloud effects.
    My Finished Maps
    Works in Progress(or abandoned tests)
    My Tutorials:
    Explanation of Layer Masks in GIMP
    How to create ISO Mountains in GIMP/PS using the Smudge tool
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    Unless otherwise stated by me in the post, all work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.

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    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.

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