silhouette extraction
HoldTechniques
The process of finding contour curves where surface normals are perpendicular to the view direction.
Why it's here
Placed in Hold: 1 article(s) of evidence from 1 source(s), led by research-stage coverage, with 0 in the last 30 days. Confidence 24%. Low accumulated evidence, so it defaults conservatively pending more signal.
Evidence (1)
- 5Hacker News·9/8/2026researchInteractive Rendering of a Topological Picture Book
This project presents an interactive renderer inspired by G. K. Francis’s "A Topological Picture Book," showing mathematical surfaces such as the torus with hand-drawn line-art styling. It combines silhouettes, hidden lines, hatching, and labels using techniques like marching tetrahedra, principal-curvature streamlines, and GPU-based visibility handling.