Final Project Proposal: Alex Li, Julie Tung

Project Goals

We would like to realistically render two stuffed animals, a penguin and a miniature polar bear. The exterior of the penguin is polyester cloth, while the polar bear’s is of short fur. Ideally, we want to place these two animals in an interesting environment; for instance, the Arctic where they could be sitting on a bed of snow and ice.

Techniques

Fur

The polar bear’s fur will be modeled as geometry, with each hair primitive modeled as a three-dimensional Catmull-Rom spline. We will use a cylinder-based shading model in order to produce realistic shading in the fur. We would also like to create an accurate self-shadowing effect among the hairs in the fur, for which one possible technique is deep shadow maps.

Rendering Hair: http://www.rhythm.com/~ivan/hairRender.html James T. Kajiya, Timothy L. Kay. Rendering Fur with Three Dimensional Textures. In SIGGRAPH 89 Tom Lokovic, Eric Veach. Deep Shadow Maps. In SIGGRAPH 00, July 2000.