Point based rendering of non-manifold surfaces with contours

• DOI: 10.1145/988834.988836
• Publication Date: 2004-07-20T15:55:38Z
• Authors: Ron J. Balsys; Kevin G. Suffern
• Keywords: Parametric surface; Gaussian curvature; Manifold (fluid mechanics)

We present point based rendering techniques that render various types of contours as constant width slabs on surfaces. The requires evaluations the surface functions and gradients to shaded images. use parallel principle planes, located along a principal axis rotated by arbitrary steps, consisting concentric spheres Gaussian mean curvatures. also technique curvature maps illustrate with number parametric implicit surfaces, discuss their advantages disadvantages compared other techniques.