00:27 <raptop> units aren't specified, so what's the normal one for rest mass, MeV/c²?

00:31 <queqiao-_> ⟨S​paceman Spiff⟩ Kg xD

00:32 <queqiao-_> ⟨S​paceman Spiff⟩ Hypothetically, if there were a vessel, perhaps a 60km cube of lead, with a mass of 2.5*10^18kg, would it have its own gravitational effect with Principia? (edited)

00:32 <queqiao-_> ⟨Z​ombieZilla⟩ Well in that case, the answer is no

00:36 <raptop> Spacecraft having inertial mass but not gravitational mass should probably be in the FAQ

00:36 <raptop> Of course, the FAQ also needs to be updated with my current timezone

00:46 <queqiao-_> ⟨S​paceman Spiff⟩ Is it possible to add gravitational mass to vessels, or is that beyond the capabilities of even the all-powerful 🥚

00:46 <queqiao-_> ⟨S​paceman Spiff⟩ (And KSP)

01:21 <queqiao-_> ⟨Z​ombieZilla⟩ Even if it was, you'd have extreme slowdown even with 1 vessel in space

01:25 <raptop> Launch a satellite constalltion, and suddenly it's seconds per frame (I assume)

02:03 <queqiao-_> ⟨§​κyℓαr ♀⟩ I was able to hack together iirc a good couple hundred(?) (maybe way less its been a long time) minor bodies and it performed just fine

02:04 <queqiao-_> ⟨§​κyℓαr ♀⟩ think its not done just because most people don't think to exploit it often and its just extra complexity and less perf, although it is unfortunant because I wanted to exploit it one time...

02:12 <queqiao-_> ⟨s​cimas⟩ I presume large number of bodies work because they are only influenced by gravity. Meaning their future can be computed with a large time step and for many steps at once (if you so desire). Add into that mix a "body" that can move arbitrarily (by way of engine thrust) and suddenly you have lost both capabilities.

02:30 <queqiao-_> ⟨!​Kerbinator (UTC+8)!⟩ well

02:30 <queqiao-_> ⟨!​Kerbinator (UTC+8)!⟩ still back to that problem again: persistent thrust integration...

09:53 <queqiao-_> ⟨Z​eusbeer⟩ I am not sure if egg will ever be in the mood to add such a feature

10:16 <queqiao-_> ⟨v​on Kerman⟩ Is it even possible to have a "Predicted" trajectory in the presence of persistent thrust? Looks like only the "Planned" trajectory is possible...

10:17 <queqiao-_> ⟨v​on Kerman⟩ Is it even possible to have a "Predicted" trajectory in the presence of persistent thrust? Looks like only the "Planned" trajectory can be calculated... (edited)

10:22 <queqiao-_> ⟨v​on Kerman⟩ Well, probably possible, if the predicted trajectory doesn't take into account persistent thrust at all.

11:37 <queqiao-_> ⟨e​gg⟩ not sure what you mean by possible or can be. In Principia as things are, there is no persistent thrust; in principle lots of things could be calculated (after all, we do calculate the flight plan, it’s not a fundamentally different problem).

11:37 <queqiao-_> ⟨e​gg⟩ There would be quite a bit of work needed to add support in the guts of Principia, but of course the main difficulty is interacting with the game, fuel needs to be consumed, the vessel needs to be capable of attitude control, the direction of thrust needs to be defined appropriately, perhaps there needs to be some UI to say that one wants to burn through timewarp…

11:53 <queqiao-_> ⟨v​on Kerman⟩ I just tried to imagine how it might work, and thought that predicted trajectory should take into account persistent thrust, but understood that it shouldn't (just like it doesn't take into account regular engine burns in the flight plan). I see that the main difficulty is not predicting the trajectory but actually implementing the persistent thrust, or interacting with another mod that does it

11:53 <queqiao-_> ⟨v​on Kerman⟩ I just tried to imagine how it might work, and thought that predicted trajectory should take into account persistent thrust, but understood that it shouldn't (just like it doesn't take into account regular engine burns in the flight plan). I see that the main difficulty is not predicting the trajectory, but actually implementing the persistent thrust, or interacting with another mod that does i

12:32 <queqiao-_> ⟨e​gg⟩ well, there is the question of whether the prediction should reflect that; there is a good argument to be made that this ought to be left to the flight plan, and that the prediction ought to remain the trajectory assuming a sudden loss of thrust—otherwise it’s just confusing.

12:32 <queqiao-_> ⟨e​gg⟩ such UX questions are among the biggest difficulties in adding complex features like this. The numerical analysis is easy.

12:33 <queqiao-_> ⟨e​gg⟩ (Or, more accurately, it’s already done, regardless of its difficulty.)

12:40 <queqiao-_> ⟨!​Kerbinator (UTC+8)!⟩ well, imagine (what I really did) burning an ion engine at 1000x physic warp (fortunately the ship didn't dissemble because RO SAS is very weak and I limited SAS so something like 1% to avoid rapid dissembly...

12:40 <queqiao-_> ⟨!​Kerbinator (UTC+8)!⟩ Even only plotting-derived control is okay (Following a fixed angle with vel vector; inertial)

12:43 <queqiao-_> ⟨e​gg⟩ I think I have already told you multiple times not to make suggestions on how to implement things in Principia.

12:43 <queqiao-_> ⟨e​gg⟩ Please stop.

14:50 <_whitenotifier> [Principia] eggrobin opened pull request #3247: Bypass stock aerodynamics outside the atmosphere - https://git.io/JyIf1

22:39 <queqiao-_> ⟨S​hturman⟩ Hey i was wondering whats the difference between regular and principia was debating downloading it as from my understanding

22:39 <queqiao-_> ⟨S​hturman⟩ Hey i was wondering whats the difference between regular and principia was debating downloading it as from my understanding it makes it harder and more realistic but not sure thoughts? (edited)

23:03 <queqiao-_> ⟨Z​eusbeer⟩ Not necessarily harder, it just takes some relearning how you do stock things with principia

23:03 <queqiao-_> ⟨Z​eusbeer⟩ But once you get the hang on it you can do some epic stuff with principia

23:07 <_whitenotifier> [Principia] pleroy opened pull request #3248: Proper management of the time-to-segment map when merging trajectories with 1-point segments - https://git.io/JyLfS

23:08 <_whitenotifier> [Principia] Pending. Build queued… - 

23:08 <_whitenotifier> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/5310/

23:08 <_whitenotifier> [Principia] Pending. Build queued… - 

23:12 <_whitenotifier> [Principia] eggrobin labeled pull request #3248: Proper management of the time-to-segment map when merging trajectories with 1-point segments - https://git.io/JyLfS

23:19 <_whitenotifier> [Principia] pleroy labeled pull request #3247: Bypass stock aerodynamics outside the atmosphere - https://git.io/JyIf1

23:31 <_whitenotifier> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/5310/

23:31 <_whitenotifier> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/5311/

23:51 <_whitenotifier> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/5311/