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Ray Tracing triangular Bézier Patches

By S.H. Martin Roth, Patrick Diezi and Markus H. Gross


We present a new approach to finding ray--patch intersections with triangular Bernstein--Bzier patches of arbitrary degree. This paper extends and complements on the short presentation 17 . Unlike a previous approach which was based on a combination of hierarchical subdivision and a Newton--like iteration scheme , this work adapts the concept of Bzier clipping to the triangular domain

Topics: Computer graphics, parametric surfaces, piecewise polynomials, ray tracing, Bzier clipping, Bernstein-- Bzier patches, Chebyshev boxing
Year: 2001
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