Graphics (slingshot effect)

[OwainGlyndwr]

Or maybe rubber band effect, not sure how to explain it.

Haven't played DRS since i purchased this new pc last year. Which is much better than the old one, on which i never saw this effect even on high settings.

It is like a slight pause and then suddenly go forward, but constantly repeating.

Any ideas please ? For reference i have no problems playing, TSC, Trainz 22 and TSW on the highest settings.

Intel(R) Core(TM) i7-14700F 2.10 GHz
32.0 GB (31.8 GB usable) sys ram
Nvidia Geforce RTX 4070 @ 12GB GDDR6X

[Lapioware]

Never experienced this myself but it might be the same issue as when some people with high-end PCs complain about the poor performance of the game. I only have a very vague idea about what could be causing it, but will do some experiments on the beta branch if necessary.

You could try applying custom Windows CPU affinity settings to the game, forcing it to use only max 4 cores or so instead of all of them. This should help if it's a multi-threading issue.

[OwainGlyndwr]

Ok Oskari, thought you might know thanks very much. I do not have a clue about software problems, i appreciate the reply.

[Lapioware]

Could you check a couple of things for me? Would help in trying to figure this out:
1. Is the pause-forward loop repeating regularly, at something like one second intervals? Or does it depend on the speed of the train or something else?
2. Does doubling the simulation pace (press page up) change the behaviour?
3. Do you get rubberbanding when turning the camera and moving about in the cab, or is it just the train motion?
4. What does the "sim step ms" value say in the F1 info box?

[OwainGlyndwr]

Hi Oskari, very regular maybe less than a second intervals. Speed of train makes no difference.

Yes the rubber banding speeds up with the game speed.

No the interior view movement is as smooth as silk.

Sim step ms 1

I hope that helps.

[Lapioware]

Thanks, it certainly does. I'll do some thinking and set up a new beta version with a possible fix later this week.

[OwainGlyndwr]

Thank you buddy, would the player log info be of any use to you ?

[OwainGlyndwr]

Also i did a second run but with the Class 35 later and the Sim step ms was 2, Sim seed was 3000+

Also in the test run with the dmu the Sim seed was only around 1100+

[Lapioware]

Thanks, no need for log file or anything, I got all the necessary information already

[OwainGlyndwr]

Okee dokes, just thought i would ask, el capitano.

[Lapioware]

Just uploaded a new beta version that might fix this issue. Please give it a shot

[OwainGlyndwr]

Will do bossman, having a look now thank you.

[OwainGlyndwr]

Same as it was before sorry Oskari, maybe even worse.

[Lapioware]

Ah that's unfortunate. Back to the drawing board then. Any chance of a short 10s video of the effect in action?

[OwainGlyndwr]

I don't have anything to do a vid i don't think buddy.

[OwainGlyndwr]

Think i have sorted this by using the Nvidia Control Panel. To restrict my FPS to half the monitor refresh rate, which is 144. Game is now running with max FPS of 72fps. The in game function to do this does not seem to work here, as previously it was running at the full monty, of 144fps. Even though i set the in game function to 60, which is all i could get it to stick at in the selection window.