Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL • Hacker News Board

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#11

Post by vrtnis » Fri, May 10, 2024, 4:56 PM UTC

very cool! if you're exploring wasm for graphics, take a look at Wander- lets you create and execute "renderlets" — portable modules containing graphics data and code compiled to wasm https://github.com/renderlet/wander

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#12

Post by justin_kempton » Fri, May 10, 2024, 5:48 PM UTC

Beautiful!

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#13

Post by rigid » Fri, May 10, 2024, 5:54 PM UTC

mentos wrote: post #8

rigid wrote: post #5

mobile users should tap the canvas for the particles to move.

or shake the phone Is the accelerometer data available?

yep. android 13

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#14

Post by seanisom » Fri, May 10, 2024, 5:56 PM UTC

tetris11 wrote: post #10

super slow on Firefox, naturally

Working fine for me on Firefox - their WebGL support tends to be good enough, although there are plenty of other resource issues.

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#15

Post by seanisom » Fri, May 10, 2024, 5:58 PM UTC

This is pretty cool - great to see what a small codebase can do with raw WebGL. Have you looked at WebGPU at all?

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#16

Post by numberless » Fri, May 10, 2024, 6:54 PM UTC

Very nice! Took me a while to realise it has mouse based gravity but very good! (I clicked directly on the link on a mobile device without checking here)

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#17

Post by mft_ » Fri, May 10, 2024, 7:17 PM UTC

tetris11 wrote: post #10

super slow on Firefox, naturally

60 fps for me in Firefox, with the processor <1% while running. 3060Ti was working, but not hard.

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#18

Post by aestuans » Fri, May 10, 2024, 7:45 PM UTC

bun_terminator wrote: post #6

aww why does it not follow my finger as it does my cursor? this would be so fun!

Good point, added touch support :)

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#19

Post by aestuans » Fri, May 10, 2024, 7:52 PM UTC

seanisom wrote: post #15

This is pretty cool - great to see what a small codebase can do with raw WebGL. Have you looked at WebGPU at all?

I wanted something that can run everywhere and WebGPU support is still behind some flags in Firefox and Safari I think, but I'm pretty excited about trying that as well.

Re: Show HN: A simple 2D fluid and gravity simulation with WASM and WebGL

#20

Post by aestuans » Fri, May 10, 2024, 7:53 PM UTC

numberless wrote: post #16

Very nice! Took me a while to realise it has mouse based gravity but very good! (I clicked directly on the link on a mobile device without checking here)

Thank you. Yeah mobile support was an oversight from me, I added touch support now.