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The A -buffer, an antialiased hidden surface method
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Source ACM SIGGRAPH Computer Graphics archive
Volume 18 ,  Issue 3  (July 1984) table of contents
Pages: 103 - 108  
Year of Publication: 1984
ISSN:0097-8930
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Author
Loren Carpenter  Computer Graphics Project, Computer Division, Lucasfilm Ltd
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 41,   Downloads (12 Months): 296,   Citation Count: 88
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ABSTRACT

The A-buffer (anti-aliased, area-averaged, accumulation buffer) is a general hidden surface mechanism suited to medium scale virtual memory computers. It resolves visibility among an arbitrary collection of opaque, transparent, and intersecting objects. Using an easy to compute Fourier window (box filter), it increases the effective image resolution many times over the Z-buffer, with a moderate increase in cost. The A-buffer is incorporated into the REYES 3-D rendering system at Lucasfilm and was used successfully in the “Genesis Demo” sequence in Star Trek II.



CITED BY  88