View Full Version : Compression and Normal Maps

08-01-2004, 06:39 PM
FYI - I found this (http://www.gamefinger.com/plan.asp?userid=raduffy&id=16246) an interesting read - from Robert Duffy's plan (http://www.gamefinger.com/plan.asp?userid=raduffy&id=16246) .

Thought it might give someone some ideas/info when doing Normal maps and texture compression.

08-02-2004, 06:24 PM
Didn't read it, but isn't this just the DXT5 trick, right?

08-02-2004, 08:04 PM
Yeah, looks like they swap red and alpha, very clever.

For anyone interested, here's a link that provides an brief explanation and demo of this technique, among other things. It's in HLSL, but I found it interesting anyway. (