Efficient two-pass rasterization scheme utilizing visibility inf

Details Efficient two-pass rasterization scheme utilizing visibility inf Efficient two-pass rasterization scheme utilizing visibility inf

1995-03-22

1997-07-15

Jankus, Almis R.

G06T 1500

Patent

active

056490780

ABSTRACT:
The rasterization process is separated into two modes, a test mode and a normal mode, to eliminate shading calculations associated with all-hidden triangles, thereby providing improved efficiency over prior rasterization schemes.

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N.Greene et al, "Hierarchical Z-Buffer Visibility", Computer Graphic Proc., Annual Conf. Series, 1993 pp. 231-238.
Foley et al, Computer Graphics: Principles and Practice, 2nd ed. 1990, pp. 124-127, pp. 721-814, p. 884.
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US Patent Application, S.N. 08/006,002, filed Jan. 15, 1993, entitled "Methods and Apparatus for Reducing Illumination Calculations Through Efficient Visibility Determination" R.L.Hochmuth et al.

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