brtmr

4 ms·

1.
by brtmr 4y ago
Sweet, variadic maps sound really useful, I am always having to take a moment when mixing functions that take keyword arguments vs. option maps. Also, some of those functions added to core show up in my code as convenience functions - Glad
2.
by brtmr 5y ago
> The good thing about modern languages is that you don't depend on the location of code in the page for it to work. If you start worrying too much about exact formatting, you throw away this big advantage. Counterpoint: When using
3.
by brtmr 5y ago
Absolutely. There is no magic point in your career where you know everything. Plus, it fosters a culture of asking. And often you’re not the only one in the room who doesn’t know. Often asking a stupid question like „I don’t know that word
4.
Show HN: Banana for Scale – A Tool for Learning Scales on the Guitar(banana.rocks)
6 points by brtmr 7y ago|0 comments
5.
by brtmr 11y ago
It is still possible to inspect previous framebuffers after rebooting.
6.
by brtmr 11y ago
This is exactly the reason why the webgl standard strictly forbids allocating buffers without clearing them first. Otherwise anything the user looked at since the last power cycle - including emails, passwords, private keys, ... -could be e
7.
by brtmr 11y ago
Previous discussion on the same subject, about a post written by me: https://news.ycombinator.com/item?id=9245980 Basically, this issue is not restricted to NVidia GPUs or specific operating systems - This can be reproduce
8.
by brtmr 11y ago
woa. that looks awesome ;) what am i looking at - whats the rule? and are you also coloring the spaces the ant has already been on, but that reverted to their original state?
9.
by brtmr 11y ago
Nice! I like how the world grows with the movement of the ant, as opposed to my rather boring static one
10.
by brtmr 11y ago
Thanks! I have also discovered a pattern that is fully space-filling: BPBBP - will slowly fill the entire screen with a growing green hexagon, with a single yellow dot at the origin.
11.
Hexagonal Langton's Ant 2 – Colors, Gliders and Highways(brtmr.de)
37 points by brtmr 11y ago|13 comments
12.
by brtmr 12y ago
In these tests we were able to recover screenshot-like views of entire websites after viewing them in the newest version of chromium, then running the poc on the local system.
13.
by brtmr 12y ago
Howeverm we did not test on any other browser technologies like flash or java. I cannot guarantee that there is no possibility to access any VRAM from within a browser.
14.
by brtmr 12y ago
i have added your blogpost to the document as prior art.
15.
by brtmr 12y ago
Oracle also discourages the use of 3D acceleration for untrusted hosts. See here: http://www.virtualbox.org/manual/ch04.html#guestadd-3d
16.
by brtmr 12y ago
Yes, this is the same way I found this - In the course of another project I had the same "Huh, this is weird" moment. Then I started experimenting with different setups (Linux, Windows, VMs) and was surprised that I apparently alm
17.
by brtmr 12y ago
see _wmd's comment below[0] [0] https://news.ycombinator.com/item?id=9246244
18.
by brtmr 12y ago
Yes, that is the exact same issue. While searching for any prior art, i did not find your blog post, but the problem seemed far too obvious for me to be the only one to have ever stumbled upon it. I do think this issue needs some exposure,
19.
by brtmr 12y ago
The webgl standard has rather strong memory safety considerations: WebGL resources such as textures and vertex buffer objects (VBOs) must always contain initialized data, even if they were created without initial user data values.[0] As lon
20.
Is Your VirtualBox Reading Your E-Mail? Reconstruction of FrameBuffers from VRAM(hsmr.cc)
231 points by brtmr 12y ago|43 comments