Ray tracing of spline surfaces: Bézier clipping, Chebyshev boxing, and bounding volume hierarchy – a critical comparison with new results

@article{Campagna1997RayTO,
  title={Ray tracing of spline surfaces: B{\'e}zier clipping, Chebyshev boxing, and bounding volume hierarchy – a critical comparison with new results},
  author={Swen Campagna and Philipp Slusallek and Helmut Seidel},
  journal={The Visual Computer},
  year={1997},
  volume={13},
  pages={265-282}
}
Ray tracing is a well-known rendering technique for producing high-quality and photorealistic pictures. Spline surfaces are also well known and widely used. Thus, there is the need for fast and robust methods for computing the intersections of rays with these surfaces. In this paper, we discuss and compare three recent geometric algorithms for solving the raypatch intersection problem and present new results that are helpful in dealing with this problem. 

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