Technical Illustration Based on Human-Like Approach

I n this paper, we present a human-like nonphotorealistic rendering approach. A typical pi-ocess of’ how human engineers learn to paint technical illirsfration is as follows: At first 1he.v are trained on how to paint separate primitives such as cubes and spheres, and accordingly acciimirlate the empirical drawing principles arid skills during their continuous practices, and finally they can fieely express complicated shapes and engineering information in their illustrations by composing the related primitives ’ drawings. We manage to mimic this human-like approach by embedding established illirstration rules into prirnitives ’ lighting models and its drawing algorithms. and implement it in an illustration system-RE TOUCH.