Title
Exploiting Budan-Fourier and Vincent's theorems for ray tracing 3D Bézier curves
Abstract
We present a new approach to finding ray-cubic Bézier curve intersections by leveraging recent achievements in polynomial studies. Compared with the state-of-the-art adaptive linearization, it increases performance by 5--50 times, while also improving the accuracy by 1000X. Our algorithm quickly eliminates parts of the curve for which the distance to the given ray is guaranteed to be bigger than a model-specific threshold (maximum curve's half-width). We then reduce the interval with the isolated distance minimum even further and apply a single iteration of a non-linear root-finding technique (Ridders' method).
Year
DOI
Venue
2017
10.1145/3105762.3105783
High Performance Graphics
Field
DocType
ISBN
Polynomial,Computer science,Ray tracing (graphics),Vincent's theorem,Algorithm,Fourier transform,Fourier series,Bézier curve,Properties of polynomial roots,Linearization
Conference
978-1-4503-5101-0
Citations 
PageRank 
References 
0
0.34
31
Authors
1
Name
Order
Citations
PageRank
Alexander Reshetov111.02