F.4 still shakes in replay

[Gunfreak]

F-4 has been out for about a year now, however the shaking of the F-4 in singe player track is still as bad as it always was. 
Is there any ETO on when this can be cleared up?

[Zabuzard]

Can you check in the mission editor the "Reference Aircraft" checkbox and see if it still shakes then?

[Gunfreak]

12 hours ago, Zabuzard said:

Can you check in the mission editor the "Reference Aircraft" checkbox and see if it still shakes then?

I'll try that and get back to you.

[Nealius]

The shaking is caused by desync between the sim and the position update, with the position update overriding what the sim wants to make the aircraft do. I've noticed engaging the autopilot will almost always cause it, though I've seen high-G (7-8G) maneuvers briefly cause it as well until the sim/position info agree with each other again. It seems to happen with the Phantom moreso than with any other module. Close second would be the Mi-24 and Mi-8. 

[Zabuzard]

Yeah but the aircraft behavior should be deterministic within the same DCS version.

So I am thinking what the cause could be. Perhaps its the Wear/Tear/Condition system, which is why I am asking to see if it gets better with "Reference Aircraft" selected  

[Nealius]

Ah, would that wear/tear/condition system generate different levels of wear-and-tear between the live flight and the replay?

[Zabuzard]

2 hours ago, Nealius said:

Ah, would that wear/tear/condition system generate different levels of wear-and-tear between the live flight and the replay?

It isnt supposed to. But if it gets better after checking that "Reference Aircraft" option then it most likely does and then thats something we can potentially fix.

Edited June 8 by Zabuzard

[Gunfreak]

On 6/3/2025 at 11:13 AM, Zabuzard said:

Can you check in the mission editor the "Reference Aircraft" checkbox and see if it still shakes then?

Finally got around to checking (been to busy with the other F4.

But using that does not help at all. Aircraft shake violently during tracks.

[Zabuzard]

Can you send the track? Perhaps you are doing a coldstart and forgot to do the Jester Wheel again while the track replays (leading to you flying around with a cold machine, engines off).

[Gunfreak]

33 minutes ago, Zabuzard said:

Can you send the track? Perhaps you are doing a coldstart and forgot to do the Jester Wheel again while the track replays (leading to you flying around with a cold machine, engines off).

It was an air start nam dogfight-20250802-113941.trk It requires the ww2 marianas map

[SgtPappy]

I have a track of the same thing that happens as soon as the nose-wheel leaves the ground.

Of the few MP tracks that work for me, the F-4 always vibrates. I have one track from CCW, and the take-off is shown within the first 10-15 mins, but it's too big for here so I had to upload it to a file hosting site: https://limewire.com/d/3yK3T#kLHyhZKaIY

I can try a SP track and see if that does anything.

 

[Zabuzard]

26 minutes ago, SgtPappy said:

I have a track of the same thing that happens as soon as the nose-wheel leaves the ground.

That sounds like you are doing something that requires the use of the HB UI though (for example cold start, crew chief interactions).

Those are not captured by tracks and need to be redone manually while the track plays. Otherwise you are leaving the ground with the engines off, hence the aircraft will want to depart down but then gets teleported back by EDs "move on rails" track-system. Which is what leads to visual jitter.

Btw, please make sure you test tracks before sharing them. Most tracks (especially if not short and singleplayer) dont really work and then they arent useful for us. Cheers

On 8/2/2025 at 3:53 PM, Gunfreak said:

It was an air start nam dogfight-20250802-113941.trk It requires the ww2 marianas map

Thanks. If you got some spare time and could redo it on Caucasus that would be very helpful

Edited 21 hours ago by Zabuzard

[SgtPappy]

5 hours ago, Zabuzard said:

That sounds like you are doing something that requires the use of the HB UI though (for example cold start, crew chief interactions).

Those are not captured by tracks and need to be redone manually while the track plays. Otherwise you are leaving the ground with the engines off, hence the aircraft will want to depart down but then gets teleported back by EDs "move on rails" track-system. Which is what leads to visual jitter.

That would be interesting. Maybe it is, I'll see if I can reproduce it in SP then during cold start. However maybe it's not exactly the same because in the track, the engines do start up, the switches mostly move correctly, the chocks go away, I haven't checked every single switch or setting but the replay seems overall right. 

 

5 hours ago, Zabuzard said:

Btw, please make sure you test tracks before sharing them. Most tracks (especially if not short and singleplayer) dont really work and then they arent useful for us. Cheers

I'm not sure what you mean. I did test this track, it works, that's why I attached it. If you have a few minutes, take a look at the track until my aircraft takes-off because the vibrating F-4 is evident at take-off. The rest of the track isn't that relevant since it's just me flying around and fighting.

Edited 16 hours ago by SgtPappy

[Zabuzard]

I'm not sure what you mean. I did test this track, it works, that's why I attached it. If you have a few minutes, take a look at the track until my aircraft takes-off because the vibrating F-4 is evident at take-off. The rest of the track isn't that relevant since it's just me flying around and fighting.

Yeah, thanks. Great. It was more a general comment. People often dont know that they can test tracks and then send something in that doesnt work when replayed ingame.

[SgtPappy]

27 minutes ago, Zabuzard said:

44 minutes ago, SgtPappy said:

I'm not sure what you mean. I did test this track, it works, that's why I attached it. If you have a few minutes, take a look at the track until my aircraft takes-off because the vibrating F-4 is evident at take-off. The rest of the track isn't that relevant since it's just me flying around and fighting.

Yeah, thanks. Great. It was more a general comment. People often dont know that they can test tracks and then send something in that doesnt work when replayed ingame.

Understood, apologies if my response sounded snippy. I was genuinely confused if I missed something but also I read it back and see it might not sound as polite as I had preferred.