Advanced Illumination Models

Illumination models thus far:
  1. Largely emprically based- arbitrary fuctions that approximate observed data
  2. Failed to consider energy equillibrium
  3. Still inconsistant with some know physical phenomenon
One of the first physically-based relection models was presented by Blinn in 1977. His work was based on a paper written by Torrance and Sparrow in 1966. The model he proposed was similar to Phong's model:
This page was last modified on Wednesday, November 20, 1996