05542025 is referenced by 7 patents and cites 2 patents.

A precision Z-interpolator for use in an interactive graphics system multiplies the line slope by a value f.sub.S in computing the first Z ordinate value. This eliminates the offset error in Z inherent in previously known interpolators. For extremely large slopes, the slope is not used directly in the computations. Instead the value used is (Z.sub.E -Z.sub.S)/(1+f.sub.E /f.sub.S) (see FIG. 4).

Title
Precision Z-interpolation method and apparatus
Application Number
7/641976
Publication Number
5542025
Application Date
January 16, 1991
Publication Date
July 30, 1996
Inventor
Andrew T Brown
Fort Collins
CO, US
Assignee
Hewlett Packard Company
CA, US
IPC
G06T 15/00
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