Shading
Given an equation to calculate surface radiance, we still must apply it to the real model
- Usually performed during scan conversion
- There are efficient methods for doing this quickly
- Gouraud Shading, Phong Shading (will discuss in subsequent lectures)
-
Texture mapping gets you further
- Assign radiance based on an image
Even better: use Procedural shaders to specify any function you want to define radiance
- The possibilities are endless…
- Generate radiance on the fly, during shading
- Key ingredient of high-end rendering systems
- Pixar’s Renderman (used for “Toy Story”, “Bug’s Life”, etc.)
-