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[editor Dave]

For example, download XnView, open an image and save it as .pcx. Before you import the texture in the ED, be sure that you reduced the size to a binary number (2*2, 128*64, 256*32...). But I always import .bmp textures: These work also in UED and there are no problems such as distortion.

[editor Dave]

.bmp also work with 32 bit