feature Bug or Feature? Missile rails

[Hiob]

I noticed when taxiing that the missiles are rocking a little bit in their rails. That‘s new as far as I can tell.

Might even be realistic as far as I can tell.

Intentional?

[MeanJim]

It's a bug.  They jiggle a lot more IRL.

 

[Hiob]

My perception from the video is, that there is much more wing tip movement due to the inertia of the missiles, but the connection between the missile and its rail seems rock solid.
What I was going for ist that in the game the missiles jiggle relative to their rails.
The momentum on the wing is missing for the most part. But that's just not a feature and no "bug" afaik.  

[Czar]

On 9/27/2025 at 6:29 PM, Hiob said:

I noticed when taxiing that the missiles are rocking a little bit in their rails. That‘s new as far as I can tell.

You have a temporal anti aliasing turned on (DLSS, DLAA, TAA, FSR...)

With a temporal solution for anti aliasing, some object movements are nullified (wingtip and rails) while others are conserved (wingtip AAMRAMS). It is dependent on contrast and size. So they appear disconnected.

Try to zoom right into the missile and rail to see if the rail and missile are moving together. IIRC I did that and saw them properly connected.

It is been a while I don't use MSAA and always saw this discrepancy using DLAA since late 2023 when I got the Viper. There are other instances of this phenomenon happening as well, in and outside DCS.

[Hiob]

3 minutes ago, Czar said:

You have a temporal anti aliasing turned on (DLSS, DLAA, TAA, FSR...)

With a temporal solution for anti aliasing, some object movements are nullified (wingtip and rails) while others are conserved (wingtip AAMRAMS). It is dependent on contrast and size. So they appear disconnected.

Try to zoom right into the missile and rail to see if the rail and missile are moving together. IIRC I did that and saw them properly connected.

It is been a while I don't use MSAA and always saw this discrepancy using DLAA since late 2023 when I got the Viper. There are other instances of this phenomenon happening as well, in and outside DCS.

I get what you are suggesting, but why would that apply specifically to the missile/rails and nothing else? I have a little bit of ghosting with fast aircraft moving against the background with DLAA, but nothing llike the jittering of the missiles.

[Czar]

12 minutes ago, Hiob said:

I get what you are suggesting, but why would that apply specifically to the missile/rails and nothing else? I have a little bit of ghosting with fast aircraft moving against the background with DLAA, but nothing llike the jittering of the missiles.

Because this have small objects involved. I'll check MSAA and report back.

[Hiob]

Actually, when I'm looking to the side to my wing tip. The missile is mich bigger than an Aircraft 1 NM away...... I can't really follow that argument. But hey, I've no clue. It's possible that you are right.

[Czar]

55 minutes ago, Hiob said:

Actually, when I'm looking to the side to my wing tip. The missile is mich bigger than an Aircraft 1 NM away...... I can't really follow that argument. But hey, I've no clue. It's possible that you are right.

1 hour ago, Hiob said:

I get what you are suggesting, but why would that apply specifically to the missile/rails and nothing else? I have a little bit of ghosting with fast aircraft moving against the background with DLAA, but nothing llike the jittering of the missiles.

The Jittering appearance is the ghosting itself. The factor is the values (color) involved.
It is a bit difficult to picture it with words, I understand.

Tested with DLAA and MSAA 2X. The missile is properly attached to the wingtip rail.
With temporal anti aliasing it looks detached because of some details of the rail remains with stationary appearance because of ghosting. Everything should wobble but together. (F-16s loaded wingtips are very wobbly)

It is just the nature of the beast (temporal anti aliasing) as of today.

Edited 6 hours ago by Czar

[Hiob]

20 minutes ago, Czar said:

The Jittering appearance is the ghosting itself. The factor is the values (color) involved.
It is a bit difficult to picture it with words, I understand.

Tested with DLAA and MSAA 2X. The missile is properly attached to the wingtip rail.
With temporal anti aliasing it looks detached because of some details of the rail remains with stationary appearance because of ghosting. Everything should wobble but together. (F-16s loaded wingtips are very wobbly)

It is just the nature of the beast (temporal anti aliasing) as of today.

Very interesting! Thanks for the showcase! That’s exactly what I meant. 

[twistking]

24 minutes ago, Czar said:

The Jittering appearance is the ghosting itself. The factor is the values (color) involved.
It is a bit difficult to picture it with words, I understand.

Tested with DLAA and MSAA 2X. The missile is properly attached to the wingtip rail.
With temporal anti aliasing it looks detached because of some details of the rail remains with stationary appearance because of ghosting. Everything should wobble but together. (F-16s loaded wingtips are very wobbly)

It is just the nature of the beast (temporal anti aliasing) as of today.

Very interesting. Is this at 60fps? I would assume effect will diminish at higher refresh rates?

[Czar]

12 minutes ago, twistking said:

Very interesting. Is this at 60fps? I would assume effect will diminish at higher refresh rates?

My sim is locked at 40fps for personal preference: hardware + fps consistency across anything that's possible to occur on screen. The ghosting doesn't get in the way of my combat.

I assume it will diminish with higher FPS too as it is the nature of temporal anti aliasing. Keep in mind that is FPS dependent, which is the actual render the temporal anti aliasing is acting upon previous frames to generate the next, not "Refresh Rate" dependent. The later only affects monitors if you're running with no Vsync, which is already the standard to run without.

The gif is at 25 for compression sake.

Edited 6 hours ago by Czar

[Hiob]

34 minutes ago, twistking said:

Very interesting. Is this at 60fps? I would assume effect will diminish at higher refresh rates?

No, I’m at 120 fps. looks exactly like the above example

unfortunately