Archive notice: This article was originally published on August 1, 2005. Links and embedded videos are preserved as part of the historical record.
The Siggraph course “Line Drawings From 3D Models” dealt with non-photorealistic rendering (NPR) and the generation of a cartoon-like image from 3D models. The results could even be integrated into a viewer that can display 3D models in real time as a pencil drawing.
The particular difficulty in this conversion lies in obtaining not only the outlines of an object, but also the form-giving lines (Suggested Curves) that give the object a little more profile and can only be seen from certain viewing angles. This lecture covered the mathematics required for this and several different calculation methods.
A demo of the real-time 2D viewer with a few examples and some of the lectures will be available from next week in the download area at http://www.greensky.tv.
Further Links:
- Lecture information on the Siggraph website
