A compromise would be to use, for example, 768x768 textures. Some old cards might not support them but those cards could keep using 512x512.
)
. so you can diside what is good for your pc.
but my post just outlines the true mathmatics to the problem the difference you are stating in the example above must be to do with compression from 1024 to 512 as I take it the original Photoshoped Image was possibly 2048 reduced to 1028 and then 512, compression not being perfect gives the inconsistancies in the file sizes.





i'm off to lunch (Shakes head and walks off slowly)
