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Unless I'm missing something (likely given the author's reputation), he goes off the rails on the very first page when he defines a pixel's coverage as [0,1] an
by CamperBob 16y ago
Unless I'm missing something (likely given the author's reputation), he goes off the rails on the very first page when he defines a pixel's coverage as [0,1] and not [0,1). Fill-convention discipline is at least as important as sampling considerations.
- jacobolus 16y agoWe’re talking about samples of a (might-as-well-be) continuous space. Whether the interval is open or closed is irrelevant. If you want to think of that as an open paren, go ahead; the rest doesn’t depend on that at all.
- CamperBob 16y agoIt's irrelevant until you start applying rasterops to those pixels and areas.
- deleted 16y ago[deleted]
- astrange 16y ago> he goes off the rails on the very first page when he defines a pixel's coverage as [0,1] and not [0,1) You mean, when he's defining the model he says isn't true? A pixel has no coverage; the reconstruction filter is what has the coverage, and it might overlap more than one pixel (e.g. when doing texture mapping).