Demomaking. Physics. Operation Research. XviD. Helsing. ex-Google. WebP. YouTube. FinTech. Hacks. Opinions rare and mine.
between Paris and California.
Joined June 2013
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research.zenseact.com/public…
Cool idea
Swarming: given only noisy pairwise distances between drones (no GPS, no comms), can you recover the formation?
Yup, but only above a critical fraction of measured pairs. Below it the graph goes "floppy". It's rigidity percolation transition.
=> demo : skal65535.github.io/SNL/
I was trying to write a bzip2 validator with Claude. But archive decompression were exploding the RAM.
Guess why?!
Unchecked "subtle" bug introduced by Claude-code.
With these kind of bugs sparkled everywhere, the vibe-coded future is bright... not.
Video people, time to snatch some very good video engineers, unfortunate collaterals of greedy capitalism!
this page shows that, for a given RGB color, a full convex set of YUV values can be mapped back to it during YUV->RGB conversion. It's used advantageously in WebP during the YUV420 conversion and preserves the edges better.
Also: skal65535.github.io/yuv/
skal65535.github.io/yuv/show…
webp also exploits the spatial extension of the 'fancy upsampler' filter, but that's another topic (demo'd in skal65535.github.io/yuv/, tho)
in the wake of 3DGS, the Triangle Splatting has made some rounds lately (trianglesplatting.github.io/). I quickly toyed a bit with them here:
skal65535.github.io/trisoup/…
=> the blending function is a bit too complex to my taste. Maybe use some barycentric coordinates instead?
Although less useful than circumscribed circle, the inscribed circle has -imho- easier equations, esp. w/ barycentric coordinates.
See: shadertoy.com/view/tXd3W4
(it came up in trianglesplatting.github.io/ triangle splatting, where phi(s) needs the inscribed circle. @rvandeghen)
Light version of @PierreTerdiman 's Zero-Byte-BVH here:
skal65535.github.io/BVH/
The idea is to order the triangles as a binary tree by groups of 6 triangles, each group defines a bounding box to test. If hit, recurse both half of the remaining triangles.
@DaKangz : WebGPU!
Him leaving is definitely a W at reducing govt inefficiency.
As my scheduled time as a Special Government Employee comes to an end, I would like to thank President @realDonaldTrump for the opportunity to reduce wasteful spending.
The @DOGE mission will only strengthen over time as it becomes a way of life throughout the government.
reading LLM answers to math problems reminds me of grading bad students' exams: runs in (logical) circles, throw some real knowledge nuggets randomly, doesn't answer the question. But it feels like 'maths'. meh.
Well, at least one domain -sycophancy- where AI already surpassed humans. Does it count toward AGI?
We’ve spent the last few days doing a deep dive on what went wrong with last week’s GPT-4o update in ChatGPT.
Expanding on what we missed with sycophancy and the changes we’re going to make in the future:
openai.com/index/expanding-o…
