NoisyOwl [he/him]

I make indie games.

  • 14 Posts
  • 19 Comments
Joined 1 year ago
cake
Cake day: September 18th, 2023

help-circle








  • I use DDG, but I use the !g (google) bang a lot, either for site: search, or when my query gets complicated enough that DDG will get confused and Google will still actually look for something useful after ignoring half my terms. The bangs are useful in general though; even just !w makes it more useful than Google. (I mean I could set up quick searches in my browser, but nobody has done that since 2008.)

    I’ve been thinking of trying out Kagi, a paid premium search engine. A bunch of people on hackernews say it’s good, but what’d really sell me on it is a recommendation from someone who isn’t on hackernews.























  • Air is a compressible fluid, so ultimately you’ll need Navier-Stokes, but actually figuring out how to translate those equations into code is infamously annoying, so definitely check out an existing solution instead of trying to implement from the equations. Foster & Metaxas is an old a grid-based solution. Theirs is designed for incompressible fluids (water), but I think it should be fine if you raise β₀.

    There’s a lot of math in the paper, but it’s easier to implement than it looks (each step, run [2] on every cell once, then run [6] [7] [8] on every cell ~6 times), and it’s mostly just transcribing equations. It’s super fiddly though, just incredibly fiddly, expect to have to spend a lot of time debugging.

    There are probably suitable simpler solutions too though, so definitely spend some time searching for them (or just copyable implementations of Foster & Metaxas) before diving into that.