I know a lot of people don't know too much about normal maps and since they're in a lot of games now I think this short clip will really help people get a better idea..... it shows how a normal map is generated in XSI and how extreme information can be applied to one single polygon.

It's pretty much a tech demo from half life 2 and you may have seen it, but I thought it was still pretty cool to see what people are doing with games these days..... check it out

It's a 56.24Mb file so if you're on dial up, you'll be around for a while.

Half life 2 normal map video