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#heightmap

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Doug Binks<p>Mind the gap.</p><p>Parallel heightmap import into a deduplicated sparse octree (DAG style SVO) going well here. Nothing to see here, carry on, but please mind the gap.</p><p><a href="https://mastodon.gamedev.place/tags/InterestingButWrong" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>InterestingButWrong</span></a> <a href="https://mastodon.gamedev.place/tags/Render" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Render</span></a> <a href="https://mastodon.gamedev.place/tags/Voxels" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Voxels</span></a> <a href="https://mastodon.gamedev.place/tags/HeightMap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HeightMap</span></a> <a href="https://mastodon.gamedev.place/tags/Avoyd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Avoyd</span></a></p>
Karsten Schmidt<p><a href="https://mastodon.thi.ng/tags/HowToThing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HowToThing</span></a> #024 — 2.5D hidden line DEM heightmap visualization featuring: image pre-filtering (customizable gaussian blur), bicubic subpixel image sampling, timesliced geometry generation and hidden line clipping, canvas drawing &amp; SVG export from the same source geometry etc. All in ~85 lines of code (rest is comments &amp; imports)</p><p>For the <a href="https://mastodon.thi.ng/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a> crowd: The attached images are of DEMs sourced from USGS (<a href="https://earthexplorer.usgs.gov/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">earthexplorer.usgs.gov/</span><span class="invisible"></span></a>) and are showing regions near/around two of my fave mountains[1]: Mt St. Helens (WA), Mt. Jefferson (OR), plus Amargosa Valley (NV) north-east of Death Valley</p><p>Demo:<br><a href="https://demo.thi.ng/umbrella/geom-terrain-viz/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">demo.thi.ng/umbrella/geom-terr</span><span class="invisible">ain-viz/</span></a></p><p>Source code:<br><a href="https://github.com/thi-ng/umbrella/tree/develop/examples/geom-terrain-viz/src/index.ts" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/thi-ng/umbrella/tre</span><span class="invisible">e/develop/examples/geom-terrain-viz/src/index.ts</span></a></p><p>If you have any questions about this topic or packages used here, please reply here or use the discussion forum (or issue tracker):</p><p><a href="https://github.com/thi-ng/umbrella/discussions" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/thi-ng/umbrella/dis</span><span class="invisible">cussions</span></a></p><p>I hope this (and other parts) of this ongoing <a href="https://mastodon.thi.ng/tags/HowToThing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HowToThing</span></a> series are interesting &amp; educational. If so, please consider boosting to increase reach and/or supporting my <a href="https://mastodon.thi.ng/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OpenSource</span></a> work via GitHub or Patreon. Thank you very much in advance! </p><p><a href="https://github.com/sponsors/postspectacular" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/sponsors/postspecta</span><span class="invisible">cular</span></a><br><a href="https://patreon.com/thing_umbrella" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">patreon.com/thing_umbrella</span><span class="invisible"></span></a></p><p><a href="https://mastodon.thi.ng/tags/ThingUmbrella" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ThingUmbrella</span></a> <a href="https://mastodon.thi.ng/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a> <a href="https://mastodon.thi.ng/tags/DEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DEM</span></a> <a href="https://mastodon.thi.ng/tags/Heightmap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Heightmap</span></a> <a href="https://mastodon.thi.ng/tags/DataViz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DataViz</span></a> <a href="https://mastodon.thi.ng/tags/ImageProcessing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ImageProcessing</span></a> <a href="https://mastodon.thi.ng/tags/SVG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SVG</span></a> <a href="https://mastodon.thi.ng/tags/Geometry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Geometry</span></a> <a href="https://mastodon.thi.ng/tags/GenerativeArt" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GenerativeArt</span></a> <a href="https://mastodon.thi.ng/tags/TypeScript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TypeScript</span></a> <a href="https://mastodon.thi.ng/tags/JavaScript" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JavaScript</span></a> <a href="https://mastodon.thi.ng/tags/Tutorial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tutorial</span></a> </p><p>[1] cc/ <span class="h-card" translate="no"><a href="https://mastodon.social/@andrewbriscoe" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>andrewbriscoe</span></a></span>: "your" mountains too...</p>
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