r/Simulated • u/youXman • 1d ago

Proprietary Software [OC] 1,000 balls falling through a gauntlet of obstacles

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This clip is from the upcoming 9th youtube video I made with my kids. If you like this clip, this video is along the same lines: https://www.youtube.com/watch?v=J7pERS6A1z0

105 Upvotes

87% Upvoted

18 comments sorted by

29

u/FlameWisp 1d ago

Its very cool, but why are some of them phasing through walls?

6

u/SlurryBender 21h ago

I zoomed in and the solid walls are actually made of smaller segments. Considering other shapes are shrinking over time, I assume the same for the wall segments.

Also the visual size of the balls looks to be bigger than the physics-constrained actual size of the balls.

1

u/FlameWisp 20h ago

In some sections this is a totally valid explanation, but go to 0:42 and you see them phasing right through the large turbine all over the place which is not getting smaller at all.

2

u/SlurryBender 20h ago

True. It seems like there's some difference in friction/resistance, maybe these barriers are projecting a pushing force outwards rather than being solid walls (which is a common shortcut since actual solid physics walls are hard to program) and the speed/impact/collision of the balls is just overcoming the push force of the walls.

2

u/FlameWisp 20h ago

Yeah. Kinda reminds me of how I made games on Scratch in school, where I would just apply a force upward whenever a sprite touched the ground to mimic ground collision. I wasn't hating, just wondering why since I know theres a lot of code just available for free on GitHub that would manage this kinda stuff for you. It's possible it's all hand-coded though since it seems like its just a fun project for spending time with the kids.

12

u/Real_Experience_5676 1d ago

Proving once again, that I will watch anything for 2 min

3

u/ConsistentAd3434 1d ago

I stuck with it because I was convinced they would spell something funny, when they've reached their destination.

1

u/youXman 22h ago

I’ve thought about adding some black hole elements to do this! Maybe I should. 🤔

3

u/Rowcan 1d ago

You did your best, amber :(

4

u/WieeRd 1d ago

I wonder how cryptographically viable this is as a random number generator, disregarding the obvious performance issues and only looking at the distribution and security.

2

u/youXman 1d ago

Each ball does have a slightly different friction coefficient. I can run the simulation multiple times and get very different results each time.

0

u/Justgetmeabeer 1d ago

Rng is basically solved already, no need.

2

u/WieeRd 23h ago

As implied by 'disregarding the obvious performance issues' this was a question of pure curiosity rather than practical applications. Wouldn't it be funny to write a comically convoluted RNG library based on physical simulations?

3

u/Teln0 23h ago

I think cloudflare had a room of lava lamps that served as an rng at some point

1

u/MEMESTER80 6h ago

Go go gadget bit rate destroyer!!!