15-462 Lecture 13: Texture Mapping

03/14/2002

15-462 Graphics I

Light Mapping

•Quake uses light maps in addition to (radiance) texture maps. Texture maps are used to add detail to surfaces, and light maps are used to store pre-computed illumination. The two are multiplied together at run-time, and cached for efficiency.

Radiance Texture Map Only

Radiance Texture + Light Map

Light Map