Posts by mbr@mastodon.gamedev.place
 (DIR) Post #B61ekssHYKjm2cDIUy by mbr@mastodon.gamedev.place
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       On mapping tangent/bitangent to unit circle and back.https://marc-b-reynolds.github.io/math/2026/05/06/NormalTwist.html
       
 (DIR) Post #B6GIUUrFnKIzIjuc9g by mbr@mastodon.gamedev.place
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       @TomF FWIW: No pressure but for every row vector vote a small furry animal dies.
       
 (DIR) Post #B6GIUVgIjX8dr3nNiq by mbr@mastodon.gamedev.place
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       @TomF Nerdy aside here:  Arthur Cayley first showed a 3D rotation as a unit quaternion and later as a matrix.  So the OG matrix convention of column vectors is from quaternions.  I've always been curious about the "raison d'etre" some early graphics paper decided to ignore that and use row vectors.  Typographic? Because composition reads left to right? (shrug)
       
 (DIR) Post #B8peVNR7ANiB5BqesS by mbr@mastodon.gamedev.place
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       @IngaLovinde @lritter   cherry tomatoes is about all I buy except from a couple of small producer at markets.