What image format do you use for textures?
At least in Photoshops DDS plugin you can choose a bunch of options when it comes to saving DDS - among others not to include mipmaps or even include as much as 16 of them.
PNG files rule... I usually keep things as TGA because they are easier to edit in Photoshop (Photoshop treats them as 32-bit images, RGB channels with a separate alpha channel).
PNG files are smaller (by a huge margin) but Photoshop does not edit them correctly -- it treats them as a "layer" instead of RGB + alpha. This means you can't edit the color of pixels that are transparent, and if you do, Photoshop will save them as white pixels anyways. This is extremely frustrating for 3D applications since texture filtering can introduce a fuzzy white border as it interpolates between <some color, alpha = 255> and <white, alpha = 0>.
The best solution for me is to keep things as TGA until release time, then convert to the much more efficient PNG.
PNG files are smaller (by a huge margin) but Photoshop does not edit them correctly -- it treats them as a "layer" instead of RGB + alpha. This means you can't edit the color of pixels that are transparent, and if you do, Photoshop will save them as white pixels anyways. This is extremely frustrating for 3D applications since texture filtering can introduce a fuzzy white border as it interpolates between <some color, alpha = 255> and <white, alpha = 0>.
The best solution for me is to keep things as TGA until release time, then convert to the much more efficient PNG.
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