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Parachuting Kerbals behave unphysically in Fuchs #2607

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eggrobin opened this issue Jun 20, 2020 · 3 comments · Fixed by #2644
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Parachuting Kerbals behave unphysically in Fuchs #2607

eggrobin opened this issue Jun 20, 2020 · 3 comments · Fixed by #2644
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@eggrobin
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Noted while testing #2604; independently reported by @DarthPointer.

@DarthPointer further reports that the Kerbals are fine in Frobenius, so this likely has something to do with the rigidity assumptions of Fuchs, rather than improper force or torque application.

If all else fails we could make them unmanageable (parachuting leads to unmanageability by grounding in the short term anyway).

@eggrobin eggrobin added the bug label Jun 20, 2020
@DarthPointer
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DarthPointer commented Jun 20, 2020

I found it affecting not only the kerbal, but the vessel too if I get blown away from the ladder. Deploying the chute after being blown away also causes insane accelerations (2k gees recorded for the crew pod).

@eggrobin
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It looks like we are seeing spurious collisions between the kerbal and various parts of the aircraft, which means we treat the kerbal+aircraft system as a (nearly rigid) pile up even as they drift apart, which leads to obvious brokenness.

Let’s see whether we can characterize the spurious collisions…

@eggrobin
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Ignoring the spurious collisions fixes ejection, but the EVA parachute itself still has issues: the Kerbal orients itself in a parachute-down attitude, which looks silly and is generally not survivable.

This was referenced Jul 12, 2020
@pleroy pleroy added this to the Gallai milestone Jul 14, 2020
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3 participants