Roy Triesscheijn

Infrastructure Tech Lead at hobbyist game engine developer. Primary social media account: @[email protected].

[Roy Triesscheijn @roytries]

I'm renewing my efforts to make https://t.co/l1H7hR7wAZ my primary social media account. I've also updated my blog to point there. While at it I've also blocked ChatGPT via arobots.txt file, I have to keep trying to put morals over convenience, right? :D

[Dominic Szablewski @phoboslab]

Play the original wipEout in your browser: https://t.co/6WpTgi1ySq

Also check out the in-depth "Making-of" in my blog: https://t.co/9c7qmkoBrj

[Roy Triesscheijn @roytries]

@Wolf359Project is an image of the minimalistic hard-cover (with the green outline of a Borg cube and gold Star Fleet logo/stars/lettering) available somewhere? Would love it as a minimalistic wallpaper.

[Roy Triesscheijn @roytries]

@gollebolle I use it a lot, especially for generating code to work with shaders/content. I first went a bit overboard and used generators where I should have just used inheritance. But I like the balance I have struck now. Also support in Visual Studio has gotten a lot better.

[Roy Triesscheijn @roytries]

@AlexJHarman @Wolf359Project Same here, looks amazing

[Carl @ListeningToFilm]

“I can’t believe #StarTrek did a musical episode. It’s not a genre show”

Me:

[Jorrit Rouwe @jrouwe]

Jolt Physics got soft body physics today! There's still a lot of performance optimizations to be done, but you can start playing around with it! https://t.co/2nCqaXBgzX

[Andrew Côté @Andercot]

National Lab (LBNL) results support LK-99 as a room-temperature ambient-pressure superconductor.

Simulations published 1 hour ago on arxiv support LK-99 as the holy grail of modern material science and applied physics.
(https://t.co/UOOtDlx3eE)

Here's the plain-english explanation:
- The simulations modeled what the original Korean authors proposed was happening to their material - where copper atoms were percolating into a crystal structure and replacing lead atoms, causing the crystal to strain slightly and contract by 0.5%. This unique structure was proposed to allow this amazing property.

- @sineatrix from Lawrence Berkeley National Lab simulated this using heavy-duty compute power from the Department of Energy, and looked to see what would happen to the 'electronic structure' of this material, meaning, what are the available conduction pathways in the material.

- It turns out that there are conduction pathways for electrons that are in just the right conditions and places that would enable them to 'superconduct'. More specifically, they were close to the 'Fermi Surface' which is like the sea-level of electrical energy, as in '0 ft above sea-level.' It's believed currently that the more conduction pathways close to the Fermi surface, the higher the temperature you can superconduct at (An analogy might be how its easier for planes to fly close to the surface of the ocean due to the 'ground effect' that gives them more lift.)

This plot in particular shows the 'bands', or electron pathways, crossing above and below the Fermi surface.

- Lastly, these interesting conduction pathways only form when the copper atom percolates into the less likely location in the crystal lattice, or the 'higher energy' binding site. This means the material would be difficult to synthesize since only a small fraction of crystal gets its copper in just the right location.

This is insanely bullish for humanity.

[(feat. Jools Evelyn) @joolsevelyn]

The alternate definition of the verb, ‘tweet’, as in, ‘to make a posting on the Twitter online message service’, is in the actual dictionary. No other social media app has anything like it. Imagine disposing of that level of brand recognition because of a mid-life crisis.

[Alex Kaplan @alexkaplan0]

8/8 I cannot contain my excitement. It feels like January of 2020 with a huge wave coming that no one realizes yet, but in a much better way. What a time to be alive!! Check out the original paper: https://t.co/s84E0QSQYe

[pikuma.com @pikuma]

There are two types of programmers:

1) free(mybuffer);
2) "Thank you for playing Wing Commander!"

[Roy Triesscheijn @roytries]

@Luqqq I always associate that with a vector with length one. Is normalized also used in other contexts?

[Roy Triesscheijn @roytries]

Is there a good word or term for a number that is in [0...1]? For example what should I name a method parameter that interpolates over a curve? curve.getPosition(u) where u is in [0..1]? #gamedev #programming. Just calling it u makes me feel like a mathematician :P.

[Marcel Deneuve @MarcelDeneuve]

Friend ship
#scifi

[Eric Lengyel @EricLengyel]

I was hoping to have this book finished by SIGGRAPH, but I've decided to take a little longer to do everything right without being rushed. The book is turning out to be amazing, and it will definitely be worth the wait. I will have some preview materials available at SIGGRAPH.

[Zach Weinersmith @ZachWeiner]

Have you seen this floating around the Internet? It's from a book of mine. And, we just dropped a sequel:
https://t.co/6GxK1SkqCF

(please spread the word!)

[Alexander Zapryagaev @frustum]

Final SciFi Base with terrain object and decals added. This scene works with 25+FPS on Air M1.

[Sebastian Aaltonen @SebAaltonen]

This is a good presentation about optimizing performance. Contains only one low level optimization (pack hash key to 64 bit int). Optimizing code isn't about SIMD or multithreading. It's understanding what you are doing.

https://t.co/w0zjCJnWei