BUG REPORTS : Physics

[bbman]

Press I when you're back from the toilet?

Obviously, but as your car was out of the physics, the tires didn't cool down, that's the problem...

[TypeRCivic]

So anyone check out my replay to see if it's a bug or not?

[Scawen]

So anyone check out my replay to see if it's a bug or not?I don't consider it a bug really, though it's not quite how it happens in real life. In LFS the starter motor gives the engine a kick up to a speed it could continue, but it immediately stalls as you are in gear, so you are just getting small nudges forward. In real life you could hold the starter motor on for a while and chug forwards on the starter motor. But LFS starter can't be held on so... not really a problem.

[kaynd]

Yup

First thing i tried with the new patch was "Shift-Lock" with the XRG.

3rd gear 6000 RPM press the clutch shift to 2nd and then just kick the clutch without to heel and toe at all.

Nada Zippo niente. The rear wheels didnt lock up at all.
.

I think that’s more due to clutch slipping instead of getting instant grip with the flywheel.

Engines seem to have enough inertia, judging on revs increase and slowdown rate while in natural.

[Dillyracer]

I do notice that when you shut your engine off manually, it takes a long time before it stops. I mean, from idle to zero RPM takes a few seconds, shouldn't it just stop directly ?

[AndroidXP]

Yes, the engine simulation and the general low-rev behaviour seem to be kinda weird, shutting off and stalling is definitely not 100% authentic to real life.

That said, it does its job well enough for racing purposes, which was the main goal of these additions. I suspect this behaviour will be improved once Scawen gets to rewriting the engine simulation (which he has already hinted at ;)).

[dougie-lampkin]

Um, I don't know if this is the correct thread (or if it's been said before), but has anyone tried to upshift in the MRT at the redline? I use full manual clutch, but when upshifting in the MRT, it will change up when close to the redline. Yet it won't do it elsewhere until the throttle has been lifted...

[bbman]

:doh:

Motorbike gearbox rings a bell?

[herki]

Um, I don't know if this is the correct thread (or if it's been said before), but has anyone tried to upshift in the MRT at the redline? I use full manual clutch, but when upshifting in the MRT, it will change up when close to the redline. Yet it won't do it elsewhere until the throttle has been lifted...

Probably because the MRT "runs out of steam" near the redline, so there isn't really any torque applying to the gearbox

[dougie-lampkin]

:doh:

Motorbike gearbox rings a bell?

I have a motorbike, 6 speed manual, and it will upshift clutchless (with or without throttle lift) anywhere except near the redline. So yes, motorbike gearboxes do ring a bell :razz:

[dougie-lampkin]

Probably because the MRT "runs out of steam" near the redline, so there isn't really any torque applying to the gearbox

Is that sorta like when you come up to the pit limiter and the throttle "lifts"?

[tristancliffe]

No, it's the the output of the engine isn't able to load the dogs very much. The throttle can still be hard open...

[dougie-lampkin]

No, it's the the output of the engine isn't able to load the dogs very much. The throttle can still be hard open...

ah so it isn't really a physics bug...ok :shy:

[Intrepid]

I use a MOMO wheel so only brake and throttle for me. Is this right?....

When I change up a gear I have discovered that if for example I am in 3rd, have full throttle, and I click down the shift up paddle and keep it down. When I lift of the throttle when I am at the right RPM the gear will change up as long as I keep the shift up button down. Is this what happens with the real car? I am not sure if this is a bug or not?

[dougie-lampkin]

I use a MOMO wheel so only brake and throttle for me. Is this right?....

When I change up a gear I have discovered that if for example I am in 3rd, have full throttle, and I click down the shift up paddle and keep it down. When I lift of the throttle when I am at the right RPM the gear will change up as long as I keep the shift up button down. Is this what happens with the real car? I am not sure if this is a bug or not?



Yes, this works with upshifting too, even with full manual on. A bike gearbox will shift clutchless, as long as you ease off the throttle. Hold the paddle/button down, and let throttle off and back on, and the gear changes :tilt:

Although, I just took my bike for a spin, and it does change gear regardless of throttle... But it will not upshift close to redline without the clutch...

[Jimmy_Lemon]

i dont know if any one else has noticed but how are you supposed to do rallyX with clutch damage? i did 3 laps at bl rallyx rev and the clutch was in the red, and thats taking it mildly easy not hotlapping

[tristancliffe]

Use the latest patch, and the clutch is fine in RallyX. If not, then I suggest you work on your gear change technique.

[Jimmy_Lemon]

its not my gear changing, i tryed it on autogear change too, it just burns the clutch easy on rallyx because rpms is up and down alot

[tristancliffe]

Have you tried lifting whilst in the air to cushion things? The testing earlier today showed that the strengthened clutches help a lot.

But ultimately, it comes down to your driving, as it'll be the same for everyone.

[h0tz]

Another auto-clutch thing...(i hope it was not mentioned before...):

If you take the LX6 for example, and shift up very early, so that you drive in 6th gear @ 3000rpm the auto-clutch will half disengage at full throttle. My question is now - why? I don't see a reason for this behavior, because the engine is far from idle speed and it won't drop...

With manual clutch that does not happen, of course...

[Whiskey]

Auto clutch don't is a progressive cluth, it only has 2 settings-0% push or 100%. But it has some "smooth" (i don't know how to say) for make it more effective, but it can't push a 60% for going sliding for few meters.

I think this would be possible for Z version, I drive on manual clutch, but i think this is an issue with few importance, nobody drive on 6th gear while racing

[h0tz]

Auto clutch don't is a progressive cluth, it only has 2 settings-0% push or 100%. But it has some "smooth" (i don't know how to say) for make it more effective, but it can't push a 60% for going sliding for few meters.

I think this would be possible for Z version, I drive on manual clutch, but i think this is an issue with few importance, nobody drive on 6th gear while racing


Ok, i considered that the clutch is progressive. And of course nobody race on 6th gear at 3000rpm and therefore the priority is rather small. But that doesn't make it more realistic ;)

[Whiskey]

Yes, it is not realistic at all, but auto clutch works perfect in gear changes, it only fail if you do strange things. Of course, this need to be solved before S2 final, but now is not a thing to improve -this is my opinion :)

[JTbo]

This behaviour of autoclutch is what burns clutches of many when they spin, so instead of stalling it slips clutch. I think it is good this way, so people learn that it is not ok to keep car on big gear and floored :)

[Lotesdelere]

This behaviour of autoclutch is what burns clutches of many when they spin, so instead of stalling it slips clutch.
So it might be the reason why the clutch is heating so easily with the FZR + auto clutch ?
Even without spinning it's hard to keep it cold after ten laps. And if someone hits you in the back it's instantly getting red.

The clutch was a bit too strong IMO in patch X35 but now I find it a bit weak. Am I the only one ?
I haven't seen many reports here about the FZR :shrug:

[BlakjeKaas]

patch X36, if you are upside down, accelerate in 1st gear, put it in neutral, stop the engine.

it goes from 74km/h to 0.
if you start it, it goes back to 74..

replay says everything.

[MarioX]

That happens because, once engine is turned off, the car goes out of physics (no calculations are made). When you quickly turn the engine back on - it loads that saved physical state of rotating wheels again...

[BlakjeKaas]

ah ok...

Didn't knew out of physics meant that.

[Jet_ CZE]

i dont know if it was already mentoied, but...
if its clutch overheated to maximum temperature (or if its reached some critical point of temp.), there should be possibility to shift without clutch down, or? :really:
talking about driving with manual clutch without help

and another one..
when i shift (e.g. in xrt 5th) gear and slowly slowing down, the ECU or some automatic system increasing gas. when is car stall, the throttle is floored. is this ok?

[Woz]

i dont know if it was already mentoied, but...
if its clutch overheated to maximum temperature (or if its reached some critical point of temp.), there should be possibility to shift without clutch down, or? :really:
talking about driving with manual clutch without help

and another one..
when i shift (e.g. in xrt 5th) gear and slowly slowing down, the ECU or some automatic system increasing gas. when is car stall, the throttle is floored. is this ok?

If you shift down the revs will rise if you have not blipped because the engine revs have to match the wheel speed (scaled for current gearing). This is normal in any car, just try it yourself. Drive along in 5 then without rev matching drop to 4th and just lift the clutch, your revs will rise to match.

Try 5th to 3rd and apart from almost going through the windscreen you rev counter will go mental.

BTW. Please don't blame me for any engine/running gear damage you might inflict on your car in these tests :)

[Jet_ CZE]

If you shift down the revs will rise if you have not blipped because the engine revs have to match the wheel speed (scaled for current gearing). This is normal in any car, just try it yourself. Drive along in 5 then without rev matching drop to 4th and just lift the clutch, your revs will rise to match.

Try 5th to 3rd and apart from almost going through the windscreen you rev counter will go mental.

BTW. Please don't blame me for any engine/running gear damage you might inflict on your car in these tests :)
i know that but i'm talking about different thing. maybe the main problem is in my horrible english :)
see the replay, i shifted 5th gear and slowed down. the gas was automaticly increased and in 0:25 reached maximum but i didnt touched the gas pedal even! that is a bit strange for me...

[JTbo]

i know that but i'm talking about different thing. maybe the main problem is in my horrible english :)
see the replay, i shifted 5th gear and slowed down. the gas was automaticly increased and in 0:25 reached maximum but i didnt touched the gas pedal even! that is a bit strange for me...

Ecu adds more throttle to keep engine from stalling :)

[Ferna]

See this in slow motion in the BF1. During and after crash...

45028

[aroX123]

Maybe imposible but..
Can u fix damage?
realitic..
BF1
300km/h
Crash in wall
Little front damage:x

[dougie-lampkin]

Maybe imposible but..
Can u fix damage?
realitic..
BF1
300km/h
Crash in wall
Little front damage:x

That's been said quite a few times...and replied to with "Not anytime soon" quite a few times...

[JTbo]

That's been said quite a few times...and replied to with "Not anytime soon" quite a few times...

But collision issues are high on priority list and if I don't remember wrong I see comments along lines of next big thing to start working with at test patch section, now if we really are using our imagination it might also mean that damage will be made better too, but better not to get hopes high yet, wait, enjoy from racing and see what future brings to us, that way it is so sweet :tilt:

[dougie-lampkin]

But collision issues are high on priority list and if I don't remember wrong I see comments along lines of next big thing to start working with at test patch section, now if we really are using our imagination it might also mean that damage will be made better too, but better not to get hopes high yet, wait, enjoy from racing and see what future brings to us, that way it is so sweet :tilt:

It has been said as important, but Scawen specifically said (if I remember right) that it is not something that will be addressed until at least Patch Z (If not S2 Final). So it's not really a Physics bug report, just something to be improved...

[JTbo]

It has been said as important, but Scawen specifically said (if I remember right) that it is not something that will be addressed until at least Patch Z (If not S2 Final). So it's not really a Physics bug report, just something to be improved...

Well yes, kind of flaw in engine and as there is now AI, Collision issues and engine + clutch model that he is going to improve, it sure takes lot of time and those will require quite massive changes to game engine, I believe.

Maybe after summer, or next autumn we can start waiting new patches to be coming, guessing again :razz: