Unity 4.3+ lets you choose "png" format as part of the native 2d support. No more 16/24/32 bit uncompressed as the only lossless formats. I'm not sure if the n

Unity 4.3+ lets you choose "png" format as part of the native 2d support. No more 16/24/32 bit uncompressed as the only lossless formats. I'm not sure if the new "png" format would work for 3d textures though- there might be some other weirdness there (like maybe you can't turn on mipmaps or something) since it's supposed to be used for 2d sprites.