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2.6 Anti-aliasing

Cf. [FvDFH90, 3.17] and [PK87, 3.10].

Aliasing lines with slope $ k\ne 0$ leads to ugly looking jagged edges also called staircasing. We could improve the appearance by increasing the resolution, but this is rather memory- and time-consuming.

Figure: Anti-aliasing at various resolutions
\begin{figure}\begin{picture}(5,3) \put(-0.5,0){\line(2,1){6}} \put(0,0){\circle... ...e*{1}} \put(10,5){\circle*{1}} \put(11,6){\circle*{1}} \end{picture}\end{figure}


Subsections
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Next: 2.6.1 Unweighted Area Sampling Up: 2 Rastering Previous: 2.5.2 Cohen-Sutherland Line-Clipping Algorithm
Andreas Kriegl 2003-07-23