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by ack_complete
651 days ago
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It's actually not difficult to vectorize Bresenham algorithms, at least the line algorithm. You just have to preroll the algorithm for each of the lanes and then adjust the steps and error factors so each lane steps 4-8 pixels ahead at a time interleaved. I've done this for the floor type 1 render in Ogg Vorbis, which is defined in terms of a Bresenham-like algorithm. |
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