http://snarfed.org Ryan Barrett's blog Tue, 07 Feb 2012 02:29:25 +0000 hourly 1 http://snarfed.org/voxel#comment-1143 Stephen Whitmore Wed, 30 Nov -0001 00:00:00 +0000 /voxel#comment-1143 <p>Nicely done. I realize this is more than a few years old, but it's still interesting to check out other peoples' voxel renderers. I developed a small one recently (http://skirmish.dreamhosters.com/devlog/?p=77), although I found that -- after more than one attempt -- that ray surfing on a per-column basis doesn't seem to be the fastest algorithm. If one instead takes steps in the Z direction (away from the camera) and traces voxels from the left side of the screen to the right side, you end up with a constant Z distance value, which speeds up the rendering notably (since it's evading extra perspective correction divisions). Your method does, however, have a lot of potential for optimizations via terrain occlusion, since the single ray can be halted outright if occlusion is detected on it.<br /> <br /> In short: excellent work! Looking forward to any other voxel adventures you may choose to undertake. :)</p> Nicely done. I realize this is more than a few years old, but it’s still interesting to check out other peoples’ voxel renderers. I developed a small one recently (http://skirmish.dreamhosters.com/devlog/?p=77), although I found that — after more than one attempt — that ray surfing on a per-column basis doesn’t seem to be the fastest algorithm. If one instead takes steps in the Z direction (away from the camera) and traces voxels from the left side of the screen to the right side, you end up with a constant Z distance value, which speeds up the rendering notably (since it’s evading extra perspective correction divisions). Your method does, however, have a lot of potential for optimizations via terrain occlusion, since the single ray can be halted outright if occlusion is detected on it.

In short: excellent work! Looking forward to any other voxel adventures you may choose to undertake. :)

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