Torrence-Sparrow Lighting Model

For our lab on photorealistic rendering, Nik Johnson and I chose to implement the Torrence-Sparrow Lighting Model. This model separates the input color into wavelengths to give a more realistic simulation of the way that the human eye perceives different wavelengths. Using this model, we were able to produce the following cool effects. (For some reason, the images come out so dark that it's hard to see the detail in them. I would suggest downloading them and opening them in XV.)

Metallic Patinas

The pictures below were created with high metallicities, so the objects appear to be made of metal and are really shiny.

Black Light

In addition to the channels for the wavelengths, we added a channel to change fluorescence. This allows us to get black light effects on our objects. An example is given below. The image on the left is without black light, and the image on the right has the box on the table fluorescing.

Regular Light and Black Light

This picture has both a normal light source and a black light in it.


Stephanie Wojtkowski
Last modified: Mon Apr 30 13:25:34 EDT 2001