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Have been throwing CC-licensed drone videos through Polycam’s implementation of Gaussian splatting.

With about 100 resized frames selected from this: commons.wikimedia.org/wiki/Fil

It gives this: poly.cam/capture/1b6abb91-bf29

Elon Musk Disrespect Amplifier is an important ecosystem service but also perhaps you, dear reader, are called to higher things.

Very slowly converging toward the GNSS observatory dashboard I’ve imagined for years.

It works by offsetting texture lookups by more than the typical normal angle would for a standard texture mapping, using a heightmap for perturbation distance. It turns out I essentially invented a parallax shader from first principles, but inside-out.

I discovered this because I was trying to find a way to make a TBN (tangent, bitangent, normal) matrix entirely in a fragment shader, and it turns out that’s occasionally done by people who make parallax shaders.

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YouTube’s front page in an incognito window. I did look up SimCity videos from this IP recently, so that one’s on me. I think this is bad.

This is a fun client-side demo of what the current generation JPEG-replacing codecs can do. Some of them only really shine when you turn the effort slider up. If you spend what would have been an absurd amount of CPU cycles in 1992 on encoding, you can get acceptable quality at itty-bitty sizes. (Try the built-in sample images.) squoosh.app/editor

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As a fan of many Canadians and things about Canada, I nonetheless recommend that people in the US who imagine it to be a magical place of ~*~civility~*~ and ~*~quiet common sense~*~ spend even a few seconds familiarizing themselves with how horrible its politics are. cbc.ca/news/canada/saskatchewa

@kingrat I don’t have any inside knowledge, but for what it’s worth, Richmond Kaiser had about 200 covid shots at their flu clinic this morning.

Got flu and covid shots this morning and boy are my arms tired.

@pnorman I wish I were surprised! And I wish we were 10 years further into this de-facto standardization proces, as we might have been. 95 and 84% are high, but not high enough to rebase everything, and that’s the story pretty much across the board.

@maxfenton I mean, I wouldn’t swear it’s not that. It’s essentially a VP8 keyframe, FWIW. (Like an avif is an AV1 keyframe +/- whatever minor details.)

(“JPEG is PERFECTLY FINE and only IGNORANT ASSHOLES want to mess with something that has worked ADMIRABLY FOR THIRTY-ONE YEARS and actually this is THE PROBLEM WITH SOFTWARE TODAY” is also a common point of view. It does not, in my limited experience, survive a thoughtful conversation with someone who pays bandwidth bills, cares about color reproduction, etc.)

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I’ve been surprised by the number of people popping up with “I always hated webp, the format I can never open properly”. I’m not saying that’s wrong.

But like … wepb is BSD-licensed and, as a lossy image format in the abstract, pretty okay.

The problems are mostly industry silliness (e.g., Apple being halfhearted about it without presenting a better alternative) and the fact that the reference implementation is in The Language Whose Creators Regretted Giving It That Fundamental Security Flaw.

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WebP has flaws as a format – don’t we all – but I think the commentary should be putting more blame on (1) the industry’s failure to standardize on (and rigorously reviews the implementations of) a single JPEG successor format, given the obvious hunger, and (2) the practice of implementing anything that reads nontrivial untrusted data in a programming language that is not memory-safe.

When people and ideas I thought were cool in 2015 turn out to be wrong or tiresome: Everything changes. I have grown since then; also, some things that were once good are now bad.

When people or ideas I irrationally disliked in 2015 are now recognized as bad: I was right all along, as I always am.

Une chronophotographie du 59e vol de l'hélicoptère martien #Ingenuity 🚁 qui permet de bien se rendre compte des différents paliers atteints : 5 en montée, 3 en descente, avec une altitude max (et record) de 20 m.
Crédit : NASA/JPL-Caltech/ASU/DejaSu #Mars #MarsHelicopter

Gently closing the Desmos tab where I’ve been trying to build some kind of trigonometric intuitions about … ah … circles, maybe?

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Horsin' Around

This is a hometown instance run by Sam and Ingrid, for some friends.