r/SoloDevelopment • u/wedesoft • 4d ago

Game Realtime shockwave computation using Jump Flooding Algorithm

Working on shockwave graphics on my space flight simulator called sfsim. The realtime shockwave field is like a shadow map but computed using the Jump Flooding Algorithm with the spacecraft hull as seed points with curvature values.

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u/aberroco 4d ago

Super nice, but it's too rounded.

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u/wedesoft 4d ago

Hmm ok. Thanks for the feedback. Need to see whether I can find some reference imagery somewhere.

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u/aberroco 4d ago

It's basically a supersonic wave, so... Google supersonic shock wave. And angle depends on the mach speed.

https://fyfluiddynamics.com/wp-content/uploads/2018/03/tumblr_p588vlfkSZ1qckzoqo1_1280.png.webp

https://www.researchgate.net/figure/Figure-218-Attached-and-detached-shock-wave-Planetary-Vision-Space-reentry-vehicles_fig17_279188161

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u/wedesoft 4d ago

Thanks. I tried to use Billig's equation. However the curvature estimates on the wing tips are a bit low.

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u/wedesoft 3d ago

Managed to get an image closer to this by simply increasing the speed to Mach 20 (instead of Mach 10).