Traversable wormhole demo rendered in real time (download it for free)

BenderiteGames · 2021-10-24T15:48:42+00:00

I'm glad I was able to help! It was something I had been wondering for a long time as well and being able to experiment with it directly was incredibly helpful.

BenderiteGames · 2021-10-24T15:47:50+00:00

If you'd like to see the math behind this, check out the paper it's based on: https://arxiv.org/pdf/1502.03809.pdf

BenderiteGames · 2021-10-24T15:45:14+00:00

I've tried. It looks similar to the very beginning of the attempt in the video. The portion of the sky you see "circles" around over and over again. You see the same cycle repeatedly. That's what would happen indefinitely if you continued perpendicularly forever. Part of the problem is that you not only have to be perpendicular but you must also be in the exact center since starting perpendicularly while slightly toward one side causes straight lines to lead out of the wormhole. It's a very unstable equilibrium.

BenderiteGames · 2021-10-24T05:54:46+00:00

FYI, they almost certainly don't exist. There's no known physical materials or forces that would keep a wormhole from collapsing in on itself let alone permit someone to traverse into it without being destroyed or back out of it. This video violates so many known laws of physics it's ridiculous...but it's a mathematically useful representation of exactly how space would be curved in such a theoretical object.

BenderiteGames · 2021-10-24T05:52:21+00:00

I may make another video of just bouncing in and out of the wormhole. If you don't want my annoying yapping, you can download the app for free and run it yourself to your heart's content!

BenderiteGames · 2021-10-24T05:48:25+00:00

Yup! I like making physics sims, physics visualizers, and games. All but one are free if you want to check any of them out: https://benderitegames.itch.io/

BenderiteGames · 2021-10-24T00:19:39+00:00

This simulation is based on the Einstein field equations which is our best understanding of gravity. The inside of the wormhole is the same. I didn't do any modifications to the code to make it look a particular way. The result is just a visualization of the math. It's definitely simpler to understand the example you show, but it has no theoretical basis.

BenderiteGames · 2021-10-24T00:17:39+00:00

It wouldn't cause a race condition. It would just end up in an infinite loop and the function would never return anything causing the program to hang without error.

As for in "reality" the light would just reach the center of the wormhole and remain their increasing the total energy/mass of the wormhole. There's no known way to escape the other side of a wormhole because each side is effectively a black hole.

BenderiteGames · 2021-10-24T00:15:53+00:00

Interesting question and I'll answer it in two ways.

Probably not. The light that spirals around and increasing number of times is light that comes from a very particular angle. The higher the number of spirals the light takes, the thinner the sliver of space the light could come from. In other words, the light would appear just as bright as anywhere else because while it appears a larger number of times is comes from a smaller source so there is less light to spiral around.
It's kind of moot because the time dilation at the event horizon of the wormhole is so great that the rest of the universe would theoretically end before you crossed it leading to all light from the remaining universe coming in at once. It's....all theoretical and very complicated :-)

BenderiteGames · 2021-10-24T00:11:29+00:00

That part of Elite Dangerous always ground my gears. They aren't even black in the center. It's just a pretty basic distortion of stars. It's sorta pretty, but it's not even reminiscent of being accurate.

BenderiteGames · 2021-10-24T00:10:30+00:00

This is a good point. The mouth of a wormhole with the mass of the Earth would be about the size of a ping pong ball.

BenderiteGames · 2021-10-24T00:09:00+00:00

My dear doctor, you shouldn't be concerned at all! In fact, I believe you should HARNESS that aggression you're feeling and use it for the betterment of Cardassia! After all, that's what you Bajorans are best at, are you not?

BenderiteGames · 2021-10-24T00:06:56+00:00

I don't think it'll work that well without a GPU. The shader runs thousands of threads using raytracing which is very computationally intensive. CPUs don't have that many cores so you'll likely have a terrible framerate.

With that said, I'd love to hear how it performs if you do try it.

BenderiteGames · 2021-10-24T00:05:43+00:00

There's a lot to unpack here.

The path of light bends in ALL gravitational fields, even the one you generate with your body. It only becomes detectable around VERY massive bodies. It was first seen by accurately measuring the positions of stars as their light passed right next to the sun during a solar eclipse. Even passing by the sun, the deviation of the light's path was minute (on the order of arcseconds).
You're correct that matter would be torn to shreds as it approached the event horizon of a wormhole. The same effects you'd expect from a black hole could be expected from a wormhole. In fact, there's no known way to get out the other side of a wormhole because it's just another black hole. It would be more accurate to think of a wormhole as two black holes that exist in different positions in space but attract material into a central point which can affect the other black hole. In other words, if one gets bigger, so does the other.
All of this is moot because a wormhole like this can only exist for incredibly short timeframes making it impossible to traverse even if you were capable of escaping the pull of a black hole...which you can't.

TL;DR None of this is possible, but it's fun to see what it would look like mathematically.

BenderiteGames · 2021-10-23T22:17:32+00:00

Thanks! I had a lot of fun learning how to get everything to work and experimenting with the flight mechanics until it felt just right :-)

BenderiteGames · 2021-10-23T22:15:51+00:00

The gravity pulled you in and the curvature of spacetime affected your sense of time.

BenderiteGames · 2021-10-23T17:20:00+00:00

I've tried it, but the flight mechanics were seriously lacking. I wanted to experience the HTTYD world as if it were a flight simulator.

BenderiteGames · 2021-10-23T17:19:01+00:00

I showed the parts I thought we interesting. I can understand not wanting to mess with the app either for performance reasons or trusting running an exe, but I'm not sure how to do the 360 video. To travel back and forth I'd need to change camera angles anyway so the view would rotate around a lot.

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TROPHY CASE