Affiliation:
1. Apollo Computer Inc., Chelmsford, MA
Abstract
A parallel algorithm for the rasterization of polygons is presented that is particularly well suited for 3D Z-buffered graphics implementations. The algorithm represents each edge of a polygon by a linear
edge function
that has a value greater than zero on one side of the edge and less than zero on the opposite side. The value of the function can be interpolated with hardware similar to hardware required to interpolate color and Z pixel values. In addition, the edge function of adjacent pixels may be easily computed in parallel.
The
coefficients of the "Edge function" can be computed from floating point endpoints in such a way that sub-pixel precision of the endpoints can be retained in an elegant way.
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design,General Computer Science
Reference5 articles.
1. Foley J. and A. Van Dam "Fundamentals of Interactive Computer Graphics." Foley J. and A. Van Dam "Fundamentals of Interactive Computer Graphics."
2. Call for papers
Cited by
71 articles.
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