Published on: 2025-09-06 07:59:46
The DDA Algorithm, explained interactively I've written a number of voxel raytracers, and all of them (all the good ones, at least) use the Digital Differential Analyzer Algorithm for raycasting. I've only ever "implemented" this algorithm once, by copying a reference somewhere. Since then, I've used and re-used that code. But I have something to admit: I've never really understood how it works. I've seen it explained well, explained poorly, explained on video, and still, I just don't get it. I
Keywords: distance grid rd rdangle ro
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