an1sotropy
Joined 5 years ago
Karma
843
Submissions
336
Member since
May 3
Recent submissions
Comment · 1 year ago
Their Art of the Fugue is a multi-instrumental joy. Here's where Contrapunctus I starts: https://youtu.be/N6sUlZa-IrU?t=7
Comment · 1 year ago
The bummer is that the transmission is only unidirectional, but a unicycle needs bidirectional control, with very little backlash. Every economical planetary gear hub involves over-running pawls, alas.
Comment · 2 years ago
Sorry, I'll try to be clearer. QRhi docs[1] say "The Qt Rendering Hardware Interface is an abstraction for hardware accelerated graphics APIs, such as, OpenGL, OpenGL ES, Direct3D, Metal, and Vulkan." And PySide6 includes a (python) wrapper for QRhi[2]. Meanwhile, pygfx builds on wgpu-py[3] which builds on wgpu[4] which is a "is a cross-platform, safe, pure-rust graphics API. It runs natively on Vulkan, Metal, D3D12, and OpenGL".
So, from the standpoint of someone using PySide6, QRhi and pygfx seem to be alternative paths to doing GPU-enabled rendering, on the exact same range of GPU APIs.
Thus my question: How do they compare? How should I make an informed comparison between them?
[1] https://doc.qt.io/qt-6/qrhi.html
[2] https://doc.qt.io/qtforpython-6/PySide6/QtWidgets/QRhiWidget...
Comment · 2 years ago
Suppose I'm using PySide6 and starting to use QRhi[1]. Is there a way to compare the portability and speed of pygfx (as within PySide6) with QRhi?
[1] https://doc.qt.io/qtforpython-6/PySide6/QtWidgets/QRhiWidget...
Comment · 2 years ago
Sourceforge still works, and is (now) reliable. The awful DevShare malware stuff that Sourceforge started (under new ownership) in 2012 was stopped (under different new ownership) in 2016.
Comment · 2 years ago
Thank you for sharing these links. They both worked for me (in the US); both were set to ON when I got there, and I was able to turn both OFF.
Comment · 2 years ago
Fwiw the github page for that proposal isn't linking to what seems to be the most recent discussion *. I thought type-annotations-as-comments was a no-brainer, but it seems messy. The Sept 2023 discussion shows that it is complicated by the current variety of annotation schemes (TypeScript is not the only one), and the parsing subtleties, which gave rise to unresolved questions about what is the basic motivation. bummer.
* https://github.com/tc39/notes/blob/main/meetings/2023-09/sep...
Comment · 2 years ago
previous posts:
Herbie: Find and fix floating-point accuracy problems (uwplse.org) 6 months ago | 26 comments https://news.ycombinator.com/item?id=38451680
Herbie 2.0 Released (uwplse.org) 11 months ago | 0 comments https://news.ycombinator.com/item?id=36543214
Herbie – optimize floating-point expressions for accuracy (github.com/herbie-fp) 2 years ago | 2 comments https://news.ycombinator.com/item?id=30740880
Herbie: Automatically Improving Floating Point Accuracy (uwplse.org) 4 years ago | 17 comments https://news.ycombinator.com/item?id=24069465
Herbie: Automatically rewrites expressions to minimize floating point error (github.com/uwplse) 8 years ago | 19 comments https://news.ycombinator.com/item?id=10964617
Herbie: Automatically Improving Floating Point Accuracy (uwplse.org) 9 years ago | 3 comments https://news.ycombinator.com/item?id=9999438
Comment · 2 years ago
What a sweet film. Thank you for the link. This whole time when I heard about work on the Voyager mission I assumed there was a larger team, with fewer single points of failure.
Comment · 2 years ago
The beautiful "Bygone Visions of Cosmic Neighbors"* touches (at 13:13) on Sir William Herschel belief in life on the sun. Fun times.
Comment · 2 years ago
I first learned about "leaky abstractions" from John Cook, who describes* IEEE 754 floats as a leaky abstraction of the reals. I think this is a good way of appreciating floating point for the large group of people who's experience is somewhere between numerical computing experts (who look at every arithmetic operation through the lens of numerical precision) and total beginners (who haven't yet recognized that there can't be a one-to-one correspondence between a point on the real number line and a "float").
* https://www.johndcook.com/blog/2009/04/06/numbers-are-a-leak...
Comment · 2 years ago
He actually just posted a video in which he admits he lost the plot, and forgot that the real goal is something that is fun. I hope he finds his way back to that!
Comment · 2 years ago
I love that that page is nearly the same as it when I saw it ~20 years ago. Things things are still the right way.
Comment · 2 years ago
I guess "floats are weird" is a catchier title than "numerical computing is an acquired skill based in part on understanding the various consequences of value representation density being inversely proportional to the absolute value".
Comment · 2 years ago
The author is sharing second thoughts about using the MIT license and yes, bad actors are going to break bad, but the point of licensing is to control re-use within the (enforceable) legal framework of copyright. Reciprocal licenses (thanks Lawrence Rosen[1] for that term less charged than copyleft or viral) cede less control, and provide more footholds for enforcement. Remember that GPL has (sometimes) worked as intended in adversarial commericial settings [2,3].
[1] https://www.oreilly.com/library/view/open-source-licensing/0...
[2] https://www.tp-link.com/us/support/gpl-code/
[3] https://www.zdnet.com/article/software-freedom-conservancy-w...