Pen‐and‐Ink for BlobTree Implicit Models
Kevin R. Foster, Pauline Jepp, Brian Wyvill, Mário Costa Sousa, Callum Galbraith, Joaquim Armando Jorge · Computer Graphics Forum · 2005
We present new techniques for rendering hierarchical, skeletal implicit models in several pen-and-ink styles. Our approach extracts silhouette strokes and lines following local shape features, such as those caused by CSG junc-tions. To this end, it uses particle systems to find interesting areas on the surface and perform stroke stylization guided by local shape features. Also, it removes hidden lines either by applying a surfel technique for rapid proto-typing, or more accurately by using ray tracing. Examples from simple to complex models illustrate the capabilities of our system.