Hey guys~

I"m attempting to use Wilbur, and I have read the tutorials on how to import a black and white mask, however, my image file is rather large... (7680x265 I've also gave Fractical Terrains 3 a go, and am planning on jumping back and forth between the two. I've created my Mask with Gimp, since I don't feel like paying for Photoshop when I am not getting any money off what I'm creating. The map I've created is for my D&D Campaign. Now, here's the question!

In the Wilbur tutorial for importing a mask, the file they use is a much lower file size than the one I'm using. How can I adjust the settings to achieve the relative/same results?

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