However, applied as an overlay:īecause the color part of the image continues beyond where the alpha channel goes fully transparent, the fuzzy edges blend with the appropriate color instead of white. Texture preview doesn't show the alpha channel, so it looks like a bunch of scribbles.
This is how a texture I made appears in Hammer's texture preview. In my experience, is not capable of dealing with this (or, at the very least, doesn't handle it very well), and you'll need to use the GIMP or Photoshop. The fix for this is to use an image format/image editing program that is capable of storing color data for fully transparent pixels. then blends together your colored pixel with the fully transparent, colorless pixel, and it ends up as a semi-transparent semi-colorless pixel (hence, the white outline). The issue is that your image format isn't storing color data for fully transparent pixels. The page Lampempam linked has a good explanation, though it could use some further explanation (I didn't understand it for a while myself).
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