1.38 Performance Issues

Mischief4320
Posts: 3
Joined: 15 Jul 2020 05:00

1.38 Performance Issues

#1 Post by Mischief4320 » 15 Jul 2020 05:14

Hi all, since the 1.38 update I have been having stuttering/ FPS issues. It seems to happen in areas with more vegetation. On 1.37 I would sometimes have this same issue while in a very forested area in parts of Washington, but not often. Now, on 1.38, I get the stutter while just driving around town in Ontario, OR (My homebase) and driving west of there (open plains, prairie grass, not a whole lot of trees). This is very annoying and almost game breaking for me. I have tried playing on another account, in the same part of the map, with NO mods, only vanilla and I have the same issue. My PC: I7 8700k, EVGA RTX 2060 XC Ultra, 16 GB 3200 Corsair Vengeance Ram, and Gigabyte Aurus Ultra MOBO. Playing on Windows 10. I play on the Optimal settings via Nvidia Geforce experience (Mostly high/ ultra settings) with some settings I have turned down ex: mirror quality. I have tried turning foliage quality/density down but that has had no effect. I have tried turning G sync on/off, no change. New to the forums, any help appreciated. Thanks!

User avatar
SiSL
SCS Software
Posts: 9650
Joined: 27 Oct 2013 06:23
Contact:

Re: 1.38 Performance Issues

#2 Post by SiSL » 15 Jul 2020 06:41

Can you tell me your "scale" percentage and SSAO level?

If you are using SSAO, you can reduce your scale level if it is 400%

User avatar
Watermark
Posts: 471
Joined: 26 Nov 2013 22:16

Re: 1.38 Performance Issues

#3 Post by Watermark » 15 Jul 2020 14:10

I have a system similar to Mischief and also have tremendous frame drops all over the place, especially visible in the latest 2 DLC's, SSAO is not even a starter... I think the only people who don't have problems are those who still play at "just" full HD and those who have top of the line PC's which handle SCS games in a raw, brute force kind of way given the lack of optimization in the game engine. However, most people have mediocre PC's which don't have the extra power to apply brute force to a unoptimized game and get a decent and stable FPS. By the way, I can run Death Stranding with high settings at 60FPS, and that game really is a mind blowing good looking game compared to ATS or ETS2. Honestly I have a hard time justifying any more money spent on SCS games...

Mischief4320
Posts: 3
Joined: 15 Jul 2020 05:00

Re: 1.38 Performance Issues

#4 Post by Mischief4320 » 15 Jul 2020 16:21

SiSL wrote:
15 Jul 2020 06:41
Can you tell me your "scale" percentage and SSAO level?

If you are using SSAO, you can reduce your scale level if it is 400%
SSAO was on and scaling was set at 400%. I turned it down to 300% and tried it, took some roads through heavily forested areas and had no issues. I think that solved it. Thanks for the help!

User avatar
SiSL
SCS Software
Posts: 9650
Joined: 27 Oct 2013 06:23
Contact:

Re: 1.38 Performance Issues

#5 Post by SiSL » 15 Jul 2020 19:51

Glad to help.

While Scale UP and reduce down tactics might help to create fake anti aliasing, in basic terms 400% scale means 16x more GPU power needed to calculate and draw Ambient occlusion than 100%. So it can be nice to find a good balance between.

Mischief4320
Posts: 3
Joined: 15 Jul 2020 05:00

Re: 1.38 Performance Issues

#6 Post by Mischief4320 » 17 Jul 2020 07:23

SiSL wrote:
15 Jul 2020 19:51
Glad to help.

While Scale UP and reduce down tactics might help to create fake anti aliasing, in basic terms 400% scale means 16x more GPU power needed to calculate and draw Ambient occlusion than 100%. So it can be nice to find a good balance between.
Had time to get on and go for a few longer runs tonight, definitely getting a lot better performance across the board. I will definitely keep that info in mind when doing future graphics adjustments. Thanks for the help, got everything running smoothly just in time for Idaho!

User avatar
Robinicus
Posts: 2651
Joined: 26 Aug 2018 13:02

Re: 1.38 Performance Issues

#7 Post by Robinicus » 18 Jul 2020 14:53

There are definitely issues here....looks like the options are:

1. Aliased with SSAO enabled - FPS drops seem to mostly go away but it looks horrible
2. Major FPS drops & stuttering with SSAO enabled & NVI AA - looks good but runs like poo
3. Minor FPS drops & stuttering with SSAO disabled & NVI AA - looks good but no benefit of SSAO

What year are we in again?

This is on a i9-9820X/RTX 2080 TI/32 GB 3200 memory/2x M2 drives rig capped at 60 FPS; early testing appears to indicate the game is throttled & pegging 1 core on the CPU while the GPU is sitting at 60% or less utilization.

I would say this is more of an Idaho issue than a 1.38 issue; I hit any adjoining state border and another option presents itself:

4. Rock solid 60 FPS everywhere (except for a couple of known problem areas like offramps near the port in Seattle etc.) with NVI AA & SSAO maxed.....hmmm
1.39 combined engine pack now available

1.39 default SCS replacement engine pack now available

MS Flight Sim 2020 - Alpha test team

Don't PM me for FMOD help, ask on the forum so others can learn from it as well

User avatar
explosion65
Posts: 63
Joined: 27 Jun 2018 16:45
Location: New Jersey, USA

Re: 1.38 Performance Issues

#8 Post by explosion65 » 18 Jul 2020 20:35

@Robinicus How are you able to get the NPI AA working with the SSAO from SCS? I am also using the NPI AA tweaks, and with them active the in-game SSAO does not work at all.

jarryed
Posts: 876
Joined: 15 Mar 2018 12:08

Re: 1.38 Performance Issues

#9 Post by jarryed » 18 Jul 2020 21:07

It doesn't fully work. Partially working.

Disable NPI AO and use the SCS version instead.

User avatar
explosion65
Posts: 63
Joined: 27 Jun 2018 16:45
Location: New Jersey, USA

Re: 1.38 Performance Issues

#10 Post by explosion65 » 18 Jul 2020 21:28

@jarryed I have completely disabled the NPI AO, and have the in-game SSAO set to High, and I see zero difference. Maybe it’s there, but it’s barely noticeable compared to when the NPI AA is disabled. From my own experience, as well as the discussions on the RoExtended forums, it seems that the NPI AA compatibility bits are conflicting with the SCS SSAO. Now I’m no expert on computer graphics, but it doesn’t make sense to me why Anti-Aliasing and Ambient Occlusion would conflict with each other. One is related to smoothing out lines and edges, while the other adds self-shadowing and generally more depth to an image. I do really hope that someone can figure out how to get the NPI AA to work fully with the SCS SSAO, as now the overall image looks even more flat than before, since SCS removed pre-baked self-shadows on objects for the implementation of SSAO in 1.38.

On another note, I’m also really hoping that in 1.39 or 1.40 SCS will finally give us some proper AA where we won’t even need to rely on NPI, as the SMAA is only marginally better than the original MLAA.

Post Reply

Return to “Technical Problems”

Who is online

Users browsing this forum: No registered users and 2 guests