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csmoak

Just make sure the agent on the call on your behalf interrupts more.
Re:The Economics of Open-Weight Inference on Tuesday September 22, 2026 @01:34PM (#49805090)
https://www.stoaexchange.com/ is an exchange for hardware itself and has market data for prices over time.
Re:Check if a file was made with Claude on Thursday September 03, 2026 @10:34AM (#49550449)
Good point, re: the CA law. The rule for text output may be limited to the EU AI Act, which Anthropic notes as a reason in the linked article about its implementation.
Re:Check if a file was made with Claude on Wednesday September 02, 2026 @11:27AM (#49537764)
As far as I can tell, this and the recent change to add watermarking to text outputs[1], is to become compliant with the EU AI Act[2] and CA's AI Transparency Act[3], SB-942[4]. For large enough companies, all generated AI content is required to have watermarking.

[1] https://www.anthropic.com/news/claude-text-watermark

[2] https://digital-strategy.ec.europa.eu/en/policies/code-pract...

[3] https://www.kqed.org/news/12095398/new-california-law-requir...

[4] https://www.leginfo.legislature.ca.gov/faces/billTextClient....

I guess the fact we see any at all given the distance and small angles just emphasizes how many there are out there...
Oh nice, I had not zoomed out enough. I don't think I've seen the relativistic jets rendered before. The AR mode looks great on my phone.

Yep, I had fun learning a lot about punchcards, Fortran, and the math behind black holes. I suspect I'm doing something similar to you in my Fortran implementation, raymarching along the null geodesic to come up with my final image: https://imgur.com/a/czysDls

Also, I have to point out the "going full circle" pun, intended or not.

I think the contrast between the two sides is typically greater with an optically thick disk, and it looks like you are rendering an optically thin disk. I think that's the main difference from what I was expecting when I saw it.

Very cool demo! Thanks for sharing!

(For reference, my experience rendering black holes is recreating Luminet's rendering from the late 70s: https://www.ioccc.org/2025/cesmoak/index.html )

Please correct me if I'm wrong, but it feels like the leading edge of the accretion disk (coming towards the viewer) should be significantly brighter than it is shown here, and the trailing edge (going away from) should be significantly dimmer?

Or could the brightness shown be a result of it being Kerr vs Schwarzschild?

Re:JetZero on Saturday July 25, 2026 @11:33PM (#49054440)
Interesting choice to build in Greensboro. That's also where Boom chose to build a factory and it looks massive as you leave the airport. The plan for this company's factory looks like it will be significantly larger.
this reminds me of Polyworld by Larry Yaeger, an artifical life sim where each creature has a vision system. i played around with this back in the early 2000s though the hardware i had access to was basically insufficient to run it in any real way. it's nice to see its development has continued.

https://en.wikipedia.org/wiki/Polyworld

Re:The Cray-1 Computer System (1977) [pdf] on Tuesday January 13, 2026 @12:51PM (#46604787)
whenever i hear about a Cray, i'm always reminded of the scene in the movie Sneakers where they sit on one to have a conversation
Re:Turtletoy on Monday December 08, 2025 @03:27AM (#46189774)
i made some art on this site years ago. some people used this to make plottable art. plotting it is definitely a slower way to watch it work through a drawing :)
Re:Turtletoy on Monday December 08, 2025 @03:22AM (#46189736)
turtletoy was made back around 2018 before web assembly was generally available.
Re:Turtletoy on Monday December 08, 2025 @03:20AM (#46189723)
you can download each as an SVG and then render it out at any resolution using something like inkscape
Re:Spectral rendering, part 2: Real-time rendering on Sunday November 23, 2025 @04:16PM (#46027409)
The main benefit I see is being able to more accurately represent different light sources. This applies to transmission but also reflectance.

sRGB and P3, what most displays show, by definition use the D65 illuminant, which approximates "midday sunlight in northern europe." So, when you render something indoors, either you are changing the RGB of the materials or the emissive RGB of the light source, or tonemapping the result, all of which can approximate other light sources to some extent. Spectral rendering allows you to better approximate these other light sources.

Re:Spectral rendering, part 2: Real-time rendering on Sunday November 23, 2025 @01:53PM (#46026227)
The only applications I'm aware of that currently do spectral rendering on the fly are painting apps.

I have one called Brushwork ( https://brushworkvr.com ) that upsamples RGB from 3 to a larger number of samples spread across visible light, mixes paint in the upsampled space, and then downsamples for rendering (the upsampling approach that app uses is from Scott Burns http://scottburns.us/color-science-projects/ ). FocalPaint on iOS does something similar ( https://apps.apple.com/us/app/focalpaint/id1532688085 ).

I'm happy that tech like this will open up more apps to use spectral rendering.

Re:A visualization of the RGB space covered by named colors on Monday November 03, 2025 @01:41PM (#45802632)
i would expect the more dense part to be the smaller gamut that can be made with paint since we've been naming those colors for a lot longer than the larger gamut that can be made with a screen. The paint/print gamut looks kinda like the more dense parts of these scatter plots within the larger sRGB cube (though the paint gamut isn't entirely contained within sRGB).

MTurk is 20 years old today – what did you create with it?

MTurk was built by two two-pizza teams at AWS over the course of a year and launched on Nov 2, 2005. It took a few days for people to find it and catch on, but then things got busy.At the time, AWS was about 100 people (when you were on call, you were on call for all of AWS), Amazon had just hit 10,000, S3 was still in private beta, and EC2 was a whitepaper.What did you create with MTurk and...

( Read More... | 63 comments | 20 points | on HN )
Re:The World's 2.75B Buildings on Sunday October 12, 2025 @03:22PM (#45560998)
there is a cool project that explores this topic: https://coolcolors.lbl.gov/
dreams on playstation and unbound on pc both use sdfs to allow users to make truly round objects for games
Re:Smartphone Cameras Go Hyperspectral on Wednesday September 24, 2025 @01:58PM (#45363795)
diffraction grating wouldnt give you a controlled lighting environment (illuminant). they seem to handle that issue here by using a known spectral reference chart which might let them handle any normal lighting environment.
Re:David Lynch LA House on Friday September 19, 2025 @12:16AM (#45297891)
i lived about a half mile from this house in the same neighborhood -- it could be a lot more expensive if it had the view some properties around there have.

note that mulholland dr is just up the street from the house. this overlook is worth a visit: https://maps.app.goo.gl/muMirzaSJsEt9YnR7

Re:Gemini Robotics brings AI into the physical world on Wednesday March 12, 2025 @12:59PM (#43345278)
diaspora by greg egan is a good example
Re:The Rise of Malört, an Unexpected Midwest princess on Wednesday November 20, 2024 @02:30PM (#42197281)
sliding scale of other liquors of varying subjective quality
Re:The Rise of Malört, an Unexpected Midwest princess on Wednesday November 20, 2024 @02:12PM (#42197133)
the bar Little Brother in Austin has a fun deal. for $5, you roll a d20 and if you get a 20 you get a shot of whistle pig. anything 1-5 and you get a shot of malort.
Re:Where have all the insects gone? on Tuesday October 26, 2021 @02:55PM (#29004652)
The speed limit went up to 85 in Texas. It seemed to max out at 75 or 80 in other places. I'm not sure if an extra 5-10mph made the difference, but it could have.
How do you look at spamming private messages to many recipients, resulting in a similar effect to posting publicly?

I know of bullying on FB where the harasser sends the same message to dozens of friends of the harassed. FB makes this easy to do since a list of someone's contacts are often easy to find online and there is no recourse to find or report these messages (as with a public post).

To me this presents a particularly tricky double-edged sword. E2E encryption is good in many cases, but tied to an easy way to send many messages and easily-accessible lists of people to target a message to, can result in a similar but more hidden version of public posts.

My guess is that this is being used today to disseminate similar content that is being restricted on public posts.

As far as I can tell, restrictions to limit the number and speed of private messages have not been effective against this kind of approach, and new accounts can always be created. In some cases, these messages go to a different "inbox" for non-contacts, but not always, and this just delays the receipt of the message since, again, they cannot be found or reported.

I don't know a good solution to this problem, but it's not one I've seen talked about.

Re:Where have all the insects gone? on Tuesday October 26, 2021 @02:02PM (#29003861)
I just drove across the US (down the east coast, across the south, up the Rockies) and found I had to do this only after driving across Texas.
In Windows Explorer, if you click to the right of the breadcrumbs, you will get a text input with the full path to the current directory. If a solution for URLs were to attempt to switch to breadcrumbs (seems like it should be site-configurable via a meta tag or something), then a similar click to the right of the breadcrumbs could expose the underlying URL.

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