exDM69

34 ms·

361.
by exDM69 5y ago
> I wonder if it's the fate of any breed to eventually be bred for looks instead of taste. No, fruit trees are predominantly propagated by cloning, by grafting branches into a root stock. This method has been used already in prehist
362.
by exDM69 5y ago
And it's a "Show HN" post. Pretty nice obfuscated C too. It's art, not serious.
363.
by exDM69 5y ago
The Q movement has all the hallmarks of an astroturfing campaign. Don't assume it's just a bunch of idiots.
364.
by exDM69 5y ago
There are some useful idiots in the mix but some of the individuals do it obviously as a full time job. They are also more skilled at it than the average nutcase. It seems to be their job to put the words into the mouths of these conspiracy
365.
by exDM69 5y ago
There is a well funded and well organized COVID-19 misinformation and smear campaign targeted at citizens of the small country I live in. The same is probably true for pretty much any country right now, but in this case we're talking a
366.
by exDM69 5y ago
Yes, this is a small impulse approximation, which assumes that astronaut jump velocity is small compared to orbital velocity. Practical matters (mass) prevents instantaneous impulse to escape velocity in practice.
367.
by exDM69 5y ago
If the astronaut jumps directly to the direction of the orbit normal at any velocity, it will end up in an orbit with equal period but slightly higher inclination, and meet the space station twice every orbit 45 minutes apart at the ascendi
368.
by exDM69 5y ago
Unrelated to WordPerfect, but similar to your story: in my military service I served on signalling station (armored vehicle loaded with radios and antennas) and our job was to monitor the radios using a serial connection from a laptop, star
369.
by exDM69 5y ago
My parents taught me how to use the command line.
370.
by exDM69 5y ago
ASTC texture compression requires a huge amount of silicon area on die. There need to be several of those on a GPU. In addition there are licensing and business issues that made Microsoft mandate BCx for DirectX and Google mandate ASTC for
371.
by exDM69 5y ago
The thing is that editor scripting interfaces (vimscript in particular) kinda suck. I'd much rather have the essentials as built-in features in the editor. For example, surround.vim is kinda nice feature but it doesn't play nice w
372.
by exDM69 5y ago
Is scripting really necessary in a text editor? I have been using vanilla Vim with no plugins for years now, and I do have a config file but no plugins or anything. I was driven away from Kakoune by the "clever" way it uses shell
373.
by exDM69 5y ago
It says it's based on Kakoune, so you could look into kak docs instead, which describe difference from Vim, and it is indeed different. If the old joke "plan9 is more Unix than Unix" is true, then "Kakoune is more vi tha
374.
by exDM69 5y ago
Yes, a little low pass will make a square wave much more pleasant to the ear. But a proper LP/HP/BP resonant filter is almost a musical instrument in itself.
375.
by exDM69 5y ago
Yes, the legendary SID chip was a digital oscillator followed by an analog filter. After seeing this heroic SID chip reverse engineering (0), I tried building the filter section using a quad opamp to make the state variable filter. It sound
376.
by exDM69 5y ago
Most teams have their own dedicated wind tunnels and they are fairly expensive installations. As an example, the artificial lake you see in front of the McLaren Technology Center at Woking [0] is the cooling liquid reservoir for their wind
377.
by exDM69 5y ago
This is very interesting stuff. Look at the images labelled "velocity slice at ground plane" and "on the top side of the floor". You can clearly see the "Y250 Vortex" going between the front wheels and out arou
378.
by exDM69 5y ago
If you want to texture a sphere, the cubesphere is the best way to draw. It is what you get when you subdivide a cube using slerp instead of lerp for interpolation. Icosahedron doesn't work well if you have textures. The triangle topol
379.
by exDM69 5y ago
let vs. let rec is in ML and Scheme and some other languages. But the compiler could transform the let rec into a let, and e.g. Haskell does it so the programmer does not have to. It's not exactly a trivial algorithm as it involves fin
380.
by exDM69 6y ago
Live for Speed also had tyre deformation, temperature, pressure etc but it was still based on Pacejka model, applied to different parts of the tyre separately.
381.
by exDM69 6y ago
I assume most sims have moved beyond vanilla Pacejka model by now, but they are generally still empirical models with their roots in Pajecka. The standard model doesn't account for dynamically changing pressures and temperatures, for e
382.
by exDM69 6y ago
Aero models are actually much simpler than racing tyre models. Most older flight sims used a lookup table for aerodynamic forces, which is gives a pretty decent model for most of the flight envelope. Newer sims do model the airflow around t
383.
by exDM69 6y ago
Yeah, under the kind of typical workload I imagine this goes through in a gamedev environment, I don't expect it to ever hit the contention cases. But it could as well use mutex/condvar because it is unlikely to be contended. If t
384.
by exDM69 6y ago
I hate to voice a negative opinion but there are multiple red flags in this project. There are lots of user space spinlocks in the code, for the scheduler and the mcsp queue. Questionable use of atomics and memory barrier orderings. NIH fut
385.
by exDM69 6y ago
Fossil is offline. You sync up when connected and then you have code, issues, wiki, chat that work offline, and sync when connected again. It's not an instant messenger, more like a mail box or a bulletin board. Which works when networ
386.
by exDM69 6y ago
Intrusive linked lists don't need any allocations.
387.
by exDM69 6y ago
If there is a connection, it is coincidental and unrelated to the mechanism which was made elsewhere, and sank in a storm en route to somewhere else. Antikythera is a small barren island in the mediterranean.
388.
by exDM69 6y ago
Yes, preallocation was what I was referring to. The other strategy is what Linux does, embedding the links to the stored struct. Static arrays are poor at joining, splitting, removal and merging.
389.
by exDM69 6y ago
Antikythera is the name of the location where the archeological discovery of the mechanism was made. Its origins are unknown. Thus the mechanism has no relation to the sanskrit word.
390.
by exDM69 6y ago
You don't need to couple the linked list nodes with your allocations. Either you make an array of link structs or embed your links in the stored struct (intrusive linked list). The linux kernel uses intrusive linked lists (and intrusiv

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