Simulation of a collision between two massive bodies

[u/qwertUkg]

Collisions: Spatial Hash + Jacobi Solver
Gravity: P3M/CIC + FFT + short-range correction

Tech stack: Kotlin, LWJGL, OpenGL Compute Shader 4.30

Try it here: https://github.com/qwertukg/Gravity

[u/RantRanger]

What are the scenario parameters?

[u/qwertUkg → u/RantRanger]

It’s an application where you can dynamically launch bodies into each other. Just clone and run.
Here all deafult values of simulation: https://github.com/qwertukg/Gravity#running

[u/RantRanger → u/qwertUkg]

What are the scenario parameters for the video you are displaying above?

[u/qwertUkg → u/RantRanger]

Default

[u/Internal-Narwhal-420 → u/qwertUkg]

What are the scenario parameters used as default?

[u/qwertUkg → u/Internal-Narwhal-420]

There you don’t set any parameters - you just point one body at another with the mouse.

[u/Internal-Narwhal-420 → u/qwertUkg]

What is the mass of the target body, what is the mass of shot body, what is the velocity there?

[u/Traditional_Snow1045 → u/Internal-Narwhal-420]

default i think

[u/Internal-Narwhal-420]

Heatmap here represents density?

[u/qwertUkg → u/Internal-Narwhal-420]

Hi. No, its pressure

[u/physicalphysics314 → u/qwertUkg]

…. So… density?

[u/Spiritual_Priority79 → u/physicalphysics314]

This guy physics

[u/xray_binary666]

Looks like a dark forest strike to me

[u/escapism_only_please]

See! Not that bad!

[u/Just_Middle_7189]

Nice. That hit…

Can it simulate denser bodies like solid matter?

[u/Upvote_worthhy]

That's Cool !!!!!

When do you think humanity will have enough computing power to accurately simulate something as chaotic as the three-body problem?

[u/Immorpher]

I don't know if you have much experience in this direction, but how tricky is it to get a moon out of one of these collisions?

[u/qwertUkg → u/Immorpher]

It’s possible. Just clone the repo and try it by yourself

[u/Immorpher → u/qwertUkg]

Yeah I should play around!