Mouse camera lag in certain demanding scenes on high pollrate mouse.

[Worrazen]

So I got a new mouse, Razer Mamba, with new drivers, same thing is happening, I've been using another mouse with 100hz pollrate just for DCS for the past 2-3 years.

 

 

It feels like it's happening when there's a lot of specific object rendering going around, particularly when placed units are burning, destroyed, or there's a lot of trees. I'm still doing further testing but it doesn't look like pure FPS is the issue, FPS goes down as a result of the strain, but I've had other low FPS scenarios without the lag, it looks like when a certain part of the engine gets strained it will mess with the mouse inputs for camera movement, as well as missing hits for keyboard keys. This does not happen if moving the camera with the HAT Switch (POV) on the joystick.

 

I'll be testing on another PC and then I'll post more data to pinpoint in which conditions does it happen. Other people who have this issue should also try to see if it's happening only in certain circumstances, namily when flying low with 100% trees and round clutter.

Edited November 9, 2019 by Worrazen

[Mustang]

I recently dropped my mouse from 1000hz to 125hz in my Logitech software and this makes the mouse camera movements in DCS much better.

[Worrazen]

Doing some other stuff meanwhile, played a CAS mission with F18 in caucasus. Seems like that it's some part of the engine under strain it affects mouse (maybe also keyboard) inputs.

 

There's no trees here on lots of units, but they are off screen 20 miles away doing all kinds of activity. So it's not just tree rendering it self causing this, it's not FPS, it's not GPU.

 

You can see how smooth it goes when I use the Joystick POV to move the camera. I keep holding it one way so it goes around and around. While when it's going side to side that's how I'm moving my mouse, so those long pauses aren't laggies, you can see when I move the mouse from one side to the other it will be choppy for a moment, it's actually harder to see on video than it is when I'm actually doing it.

 

Just moving with the mose already goes slower, as if some signal isn't being received, like some kind of drag. At heavy times the camera moves super slow, 10% of what the mose is moving, then when it releases it suddenly goes very fast so those glitches are quite noticable.

 

 

Not the best example, I'll do another one later. I'm just going to do a proper video with the actual mouse in side view, comparison, should have done that ages ago.

Edited November 14, 2019 by Worrazen

[Worrazen]

Another video here:

 

 

When mouse is not seen and the top of the joystick is, then I switched over to the POW SWITCH movement, (happens to be mapped to these joystick's buttons, different device) and there is no lag-bug here, because holding it down keeps moving the camera then it will completely spin around, but the spins are smooth irrespective of FPS, nothing like with the mouse.

 

The effect isn't seen immediately, and harder through a video, but looking at it for some time starts to make out there's a "lag" going on which is NOT tied to the FPS, it's not smooth in 1:1 mouse movement.

 

I tested on a Core i5 2xxx and the bug doesn't seem to happen there, only slightly but I wasn't able to confirm if it's really the same thing, basically it would go slower if you would start slow and keep speeding up, it would go slow and than the view would snap and catch up, but pretty minor effect.

Edited November 18, 2019 by Worrazen