comp870 - Assignment 4
Overview
This assignment was to implement or modify some renderman shaders. For this assignment, I used the light bulb example from The Renderman Companion.
The new code for each example is available below.
This is the original scene from The Renderman Companion.
Changed file: bulb.sl
The surfrace normal is perturbed based on a cosine function and the surface position. While this would work better as a displacement shader, I wanted to keep the same scene across all examples.
Changed files: bulb.sl filament.sl glow.sl metal.sl
This was added later, after I thought these were too boring. The bulb glow comes from mixing a bright yellow with the ambient and diffuse terms based on surface normal.
Changed files: bulb.sl filament.sl glow.sl metal.sl
The model is shaded in steps of color, based on the light intensity. The outline is added to locations where the surface normal begins to point away from the camera.