How to create a map-like (clouds) texture [duplicate]

Posted by user16547 on Game Development See other posts from Game Development or by user16547
Published on 2013-11-07T14:47:08Z Indexed on 2013/11/07 16:14 UTC
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textures

This question already has an answer here:

How do you generate tileable Perlin noise? 9 answers

If you place a map of the world on a sphere, it will look like the image is continuous. Basically the left end of the image is sort of a continuation of the right end. You won't be able to see any cuts.

I'm trying to create a clouds texture to add to my planet such that it will seem it has clouds. I managed to create the clouds in GIMP, however, I can't figure out how to make sure the left end of my image is a smooth continuation of the right end. For example if you were to map the below image to your sphere (I removed transparency to make it clearer), there would be a very obvious transition from the right end of the image back to the left end on your sphere. How would I create a texture such that I get rid of that? enter image description here

Sorry for my lack of terminology.

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