Waltteri

Waltteri

@waltteri.net

Finished a MSc in CS at University of Helsinki 🎉 Senior SWE at Cactos, battery energy storage systems. Previously Senior SWE at Garden, SRE at Webflow. Recreational computer graphics, Rust, photography, cycling. He/him. Mastodon (Twitter) @anotherwalther

443 followers590 following745 posts

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Hero Wavelength Spectral Sampling successfully implemented! 🎉 Both: 4 samples per pixel Left: one wavelength per ray Right: four wavelengths per ray With only a modest increase in runtime duration, the image becomes much smoother. This is more efficient than just adding more samples per pixel!

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Listening to a report about Google chopping down a quarter of a million trees in Finland to build a data centre while washing out yoghurt pots for the recycling

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Replying to @tef.bsky.social

i guess the closest i have to a glib position is "you shouldn't have to pay a defence contractor to use a computer" plus "subsidizing tools that enable widespread fraud is bad" plus "you should not be surprise if people are judgemental about software that has killed several people"

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ladies, is your programming - a field dominated by rich white men - driven by fashion trends - practiced as a demonstration of status - funded by vanity projects for failsons - filled with queers trying and failing to break even that's art, sorry

Nyek London@stupidhoroscope.bsky.social

I don’t know how people could say that programming and art are completely different disciplines when both workflows involve going ‘This will never work, I’m a failure’, changing one thing, then thinking you might be the smartest person alive

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Discworld QOTD, from The Truth

Micah@rincewind.run

Discworld QOTD, from Wintersmith “That's Third Thoughts for you. When a huge rock is going to land on your head, they're the thoughts that think: Is that an igneous rock, such as granite, or is it sandstone?”

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The mantis is called the 'rice-pounding grasshopper' in Thailand (ตั๊กแตนตำข้าว), from the motion of its raptorial forelegs resembling the traditional manner of pounding rice to remove the husks. This one was drawn with this very brush.

the universal turing machine is a scam invented by reel and cassette companies to sell more tape

walking mirage@wolf.observer

they should invent a kind of computer that can compute more kinds of things than an ordinary computer

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‘Backcloth Mono’ from the archive #davidstewart @wrenagency @wrenldn Prints available: DM for details. Casting @scorpioredhair #filmisnotdead #shotonfilm #largeformat #ilfordfp4

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Volumetric path tracing adventure continues: added single-scattering by approximating the shadow ray transmittance using ratio tracking. Took a while to get all the coefficients right. Left: raymarched, right: path-traced #graphics

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Guillermo Del Toro dropping another one liner that’s exactly how I feel about AI slop, the “punishment” is built in

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Because apparently this needs to be said: if you’re part of a coordinated disclosure process the appropriate thing to do is to talk to the rest of the group before you make unilateral decisions because the process is *coordinated*. It’s right there in the name Don’t agree to that? Don’t be in one

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steam should have tipping. it should have tipping. there should be tipping on steam. on steam, you should be able to tip the developer. the tip money should go straight to the developers who worked on the game and not the publishers or valve. they should make it so that on steam, you can give a tip

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This week has involved too much computer, and as a person whose job is computer, I would like there to be less computer going forward. Thank you for your attention.

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it's not the only problem in the world but it seems very clear to me that better ADHD support leads to better real-world outcomes, and that the delta between outcomes for the well-supported and unsupported is frequently enormous

Ina Hallström@killedbyproxy.bsky.social

Systematic review relevant to the discourse on diagnoses and meds. "ADHD was associated with increased all-cause mortality, suicide mortality, unintentional or intentional injury mortality, and natural-cause mortality, whereas ADHD medication use was associated with reduced all-cause mortality."

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Hey friends, I’m looking for my next gig - ideally something deep in a perf-sensitive stack, somewhere in Rust land. Would appreciate a boost!

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#graphics folks, what are some interesting missing features / unsolved problems / etc. in shader compilation / optimization / profiling / tools? One of my students wants to do something like this for their masters degree.

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shitposts aside, this one is serious, my loves: if you’re just waking up and you have any service online running PHP 5.4 to latest, you need to take it down RIGHT NOW and don’t put it back online until after it’s patched absolutely catastrophic vulnerability dropped in the middle of the night

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sorry, code is fucking beautiful. its fucking magical i can type words in the thing and fucking TRIANGLES just appear ? oops i typed it wrong and the triangles did something i didn't EXPECT ?? now weird shit is happening ?? this is the best shit of all time. i was born to fight the computer

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details leaked. this vulnerability is a full unauthenticated unconditional remote code execution exploit against any service running on a PHP version from 5.4 until latest yeah if anything deserves CVSS 11, this is it. this is CATACLYSMICALLY bad.

nightshade →home, for now@nightshade.technology

oh it's bad. oh it's BAD bad. oh this is CATASTROPHIC, drop-whatever-you're-doing-and-patch-NOW levels of bad cert.europa.eu/publications...

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After the firefighting is done (and a nap) we'll need to have a long, serious conversation about the state of non-browser non-platform X.509 verifiers. The Linux status quo is "a pile of PEM files behind a dumpster" and that's not an acceptable excuse for a root store in 2026.

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little daoist is imperfect because little daoist is not a bodhisattva, they can only try their best to remember