05-01-2008, 11:07 PM
.dff files contain the geometry of the object. 
If you extract one and open it in 3DS Max (somebody made a plugin, I believe), you can see the vertexes (verticies?), lines, faces, etc.
.dff files also contain UV maps, or where each part of the skin sheet goes.
You've probably seen skins that are just mashed up sections of characters. The UV coordinates place the certain parts of the image on certain faces. The fun part about this, though, is that the coordinates are relative to the image's size -- this is why you can have a higher-res texture sheet, as long as you scale everything perfectly.
If you extract one and open it in 3DS Max (somebody made a plugin, I believe), you can see the vertexes (verticies?), lines, faces, etc.
.dff files also contain UV maps, or where each part of the skin sheet goes.
You've probably seen skins that are just mashed up sections of characters. The UV coordinates place the certain parts of the image on certain faces. The fun part about this, though, is that the coordinates are relative to the image's size -- this is why you can have a higher-res texture sheet, as long as you scale everything perfectly.