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Video: Colliding Asteroid Field (Patreon)

Published:
2024-01-08 08:00:04
Imported:
2026-06
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Content

Definitely the longest video I made. A group of 100 asteroids is placed inside a periodic boundary and given random velocities. Will they cluster into a single large planet or fragment into thousand small pieces? Place your bets.

The simulation took about two days to compute and render with raymarcher.

Comments

Francesco Radica

Amazing video! I take the opportunity to ask a question: I'd love to make a real planet formation simulation, using SPH or N-Body. The point is that i would like to focus in only one planet per time, and I suppose it's a pain to simulate "a ring" around a star at a given distance, like the earth. the simulation may take forever. Is simulating a periodic boundary box with a given Angular Momentum the same thing of simulating an annulus, but easier? I already saw this kind of thing in literature, they are called "shear sheet" and they use that to simulate the Saturn's rings, i ask if it is possible to do a similar thing with the planet earth, in way that there is much control on the simulation.

pavelsevecek
>>126456867

Yes, it's possible, although it requires a specific setup (boundary conditions, external tidal forces) which OpenSPH cannot currently do.

Francesco Radica

It require like the permanent tidal force of the sun that should simulate an entire orbit + periodic? I'd like this as a future update both for Spacesim and OpenSPH, thank you for your work!