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Area Sampling Buffer: Tracing Rays with Z‐Buffer Hardware
Author(s) -
Sung Kelvin
Publication year - 1992
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1130299
Subject(s) - computer science , ray tracing (physics) , buffer (optical fiber) , tracing , sampling (signal processing) , computer graphics (images) , distributed ray tracing , frame (networking) , computer hardware , rendering (computer graphics) , parallel computing , computer vision , optics , operating system , telecommunications , physics , filter (signal processing)
Abstract An algorithm that allows the use of z‐buffer hardware in assisting area sampling for a ray tracing style renderer is described. The implementation issues involved in discretizing the sampling area and light source area are discussed and solutions are proposed. The effects of the hardware‐assisted ray tracing approach on frame‐buffer systems and image synthesis processes are considered.