Tunabrain

6 ms·

1.
by Tunabrain 11mo ago
Is arXiv a major trade publication? I've never seen arXiv papers counted towards your publications anywhere that the number of your publications are used as a metric. Is USCIS different?
2.
by Tunabrain 3y ago
GPUs are deterministic machines, even for floating point. The behavior in the linked article has to do with the use of atomic adds to reduce sums in parallel. Floating point addition is not associative, so the order in which addition occurs
3.
by Tunabrain 3y ago
I think there may be a misunderstanding here regarding the use case. If the vectors are large and allocated on the heap/on an accelerator, then yes, writing out explicit temporaries may be faster. Of course, this does not preclude oper
4.
by Tunabrain 4y ago
Oh wow, I bump into you everywhere!
5.
Histogram-Preserving Texture Tiling(benedikt-bitterli.me)
2 points by Tunabrain 7y ago|0 comments
6.
by Tunabrain 8y ago
Checked for my home country (Switzerland), and it doesn't seem to be correct - travel to Canada requires an eTA, but the site lists Canada as being visa free. Could get you in for an unpleasant surprise when your airline won't let
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Stars looking a bit dim? Throw some math at them(hackaday.com)
2 points by Tunabrain 8y ago|0 comments
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Star stacking: Astrophotography in C++11(benedikt-bitterli.me)
1 points by Tunabrain 9y ago|0 comments
9.
Reverse engineering a malicious scam script(benedikt-bitterli.me)
1 points by Tunabrain 9y ago|0 comments
10.
by Tunabrain 9y ago
I'd be interested to read that paper, if you're willing to share it.
11.
by Tunabrain 10y ago
Any entry level optimization course will make you implement something like that; do a matrix+matrix addition, but traverse it in row-major order in one program, and column-major in the other. If the matrix is big enough, you will easily get
12.
by Tunabrain 10y ago
I like the idea! But is there a reason why it's only available in app form? I was going to try it and see what gifts were available/how much they cost, but I can't do that from the website. I'm not going to install an ap
13.
by Tunabrain 10y ago
Are all of those ethernet cables? I can't say I know much about wiring, but that seems like a bit overkill.
14.
by Tunabrain 10y ago
But this does use solar panels. > The device uses solar electricity from a photovoltaic panel to power the chemistry that splits water into oxygen and hydrogen. Microbes within the system then feed on the hydrogen and convert carbon di
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Show HN: Physics Clock, a JavaScript rewrite of an old high school project(benedikt-bitterli.me)
3 points by Tunabrain 10y ago|0 comments
16.
by Tunabrain 10y ago
I absolutely agree, though I always feel like culture and nationality are very underplayed in this discussion - I believe an American, an Eastern European and a Chinese national would bring a lot more diverse world views to the table than a
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by Tunabrain 10y ago
In my country, there are a couple of newspapers distributed for free in train stations. These newspapers are purely financed with ads. Is it my moral obligation to read every ad in the newspaper to make sure they stay profitable? I used to
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Rendering a Buddhabrot at 4K and Other Bad Ideas(benedikt-bitterli.me)
184 points by Tunabrain 10y ago|19 comments
19.
by Tunabrain 10y ago
Doesn't Turing completeness require the ability to modify an arbitrary amount of memory? (because the length of the tape on a Turing machine is unbounded). However, if I understood correctly, the size of the Game of Life grid is fixed
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by Tunabrain 10y ago
(on Windows use MinGW/MSYS or Cygwin make and make sure you have rustc in PATH) This made me chuckle - if you have MSYS installed, which already comes with a windows port of coreutils, why would you want to use it to build a
21.
by Tunabrain 11y ago
> As brain-dead as I was after eight hours at my project, [..] Is giving out an 8+ hour programming project as part of the application process really considered good hiring practice? If you apply to five jobs, you're expected to spe
22.
by Tunabrain 11y ago
The second version of the Kinect uses time-of-flight sensing rather than the projected grid of points, and is considerably more accurate. Whether or not this makes the scanning more plausible, I am not sure. However, some of the 3D models g
23.
by Tunabrain 11y ago
I don't think he ever released it. It would definitely be very cool to play around with though.
24.
by Tunabrain 11y ago
Ah, you're most likely talking about Wenzel Jakob's wonderful 2D tool for demonstrating Manifold Walks. Wenzel was actually one of my thesis advisors, and his tool was the inspiration behind this project. :) I was writing an imple
25.
by Tunabrain 11y ago
Jensen's Photon Mapping was also my very first exposure to light transport theory - I was in high school too and got the book as a Christmas gift. The math was way beyond me at the time, but it was the first time I realized computer gr
26.
by Tunabrain 11y ago
Unfortunately, that's not possible in the current version - originally I had a demo with larger scope in mind, but WebGL turned out to be a lot more limited than I expected. I wasn't able to implement an acceleration structure in
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The Secret Life of Photons: Simulating 2D Light Transport(benedikt-bitterli.me)
10 points by Tunabrain 11y ago|2 comments
28.
by Tunabrain 12y ago
Yep! Wenzel was even one of the judges at the rendering competition. Mitsuba was and continues to be an important inspiration.
29.
by Tunabrain 12y ago
I think that an implementation targeting real-time would need an entirely different design than an offline implementation, especially if it had to run on the GPU. The main challenge is probably achieving full utilization of SIMD units (CPU)
30.
by Tunabrain 12y ago
By default it will use one thread less than the amount of cores available, so that the rest of the system is still usable while a render is running. It's not currently user configurable, but I'll add it to the Todo list. Thanks!

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