Of course you can do IR effects without pixel shaders. You need seperate maps for every object that represents the amount of heat that comes off that specifc body part, and to enhance the effect you'll want to blur the screen and have motion blur.
Pixel shaders aren't needed for everyhting ya know. Metroid Prime does IR effects just fine.
Pixel shaders aren't needed for everyhting ya know. Metroid Prime does IR effects just fine.