Rfactor2 The VR thread -settings & tips

[MarcG]

I followed this thread to setup the rift... now that there has been a major update to rFactor2, did something change? I did not see any visible stuttering, but using the Oculus tool, I could notice a drop in FPS from 90 to 60, or lower. This probably was the cause of my motion sickness

From the oculus tool I can fix fps to 45... do people here suggest I adopt this measure or I can do any tweaking?

My setup is an i-5 4690, geforce gtx1070ti, 16GB RAM

Thank you

It's all about finding a balance of settings that works for you, RF2 in its current form will struggle to get a constant 90fps even on the best hardware (more optimisation to come), what I suggest is to lower all settings and gradually work your way up. Using a mix of ASW a long the way and eventually you'll find that right balance that works best for you, remember to factor in number of AI opponents if you race online as changing this number will mess with that balance quite a bit. Not to forget that some mods & tracks are more heavy on your system than others, it takes a bit of time but eventually you'll get there, also find a decent SuperSampling rate in SteamVR and stick with that, don't change it too much.

 

[Mark Fuller]

I followed this thread to setup the rift... now that there has been a major update to rFactor2, did something change? I did not see any visible stuttering, but using the Oculus tool, I could notice a drop in FPS from 90 to 60, or lower. This probably was the cause of my motion sickness

From the oculus tool I can fix fps to 45... do people here suggest I adopt this measure or I can do any tweaking?

My setup is an i-5 4690, geforce gtx1070ti, 16GB RAM

Thank you

I did try that, but seemed to make my system slightly worse. I am running an i5 4690K with a STRIX GTX 980Ti and 16GB RAM and since the update, runs very smoothly on medium settings. One of the things that I find personally is to turn off all unnecessary applications/processes. I am also running with 40 AI off-line and runs well.

 

[Shawn]

Thanks for the replies all

Yeah it's for online use so needs to handle +30 cars, surprisingly it seems easier to find stability with AI only to get the disappointment of stutters from asw when I jump on the server when there is more then around 25 people on there.

It seems my simhub HUD was definitely one of the causes, it doesn't even have to be placed in the headset just having a window running chews up to much gpu power.

So I've had to abandon that for now and it seems my low settings are holding with just the occasional asw kick in.

Did monitor CPU usage before switching off simhub and it's maxing out at 50% so it may be more of a case of the 1070 holding me back.

 

[The Iron Wolf]

One reason increasing graphical settings doesn't increase FPS is because VR rendering in rF2 is currently CPU bound, as game needs to draw the scene twice. Second reason, is that Oculus renders at either 45 or 90, so if your computer is capable of say pulling off 85FPS it'll still be synchronized to 45, unless you turn ASW off. Because of that, if 45FPS is acceptable, you could crank up settings, it won't hurt anything. You could check GPU utilization in Afterburner, as long as it is below 90% you can still increase graphical settings.

 

[Shawn]

Thanks iron wolf I'll check it out.

Tested this morning with my incredibly low settings and over 40 drivers on the server and all good. I'll leave them as is for now and will play some more after the race. Shame simhub kills fps so much but the new huds that have been released are pretty good.


Next question

Is there anyway to lower the virtual mirrors? (Better to have them on for multiclass racing)

They sit seriously high.

 

[Korva7]

Thanks iron wolf I'll check it out.

Tested this morning with my incredibly low settings and over 40 drivers on the server and all good. I'll leave them as is for now and will play some more after the race. Shame simhub kills fps so much but the new huds that have been released are pretty good.


Next question

Is there anyway to lower the virtual mirrors? (Better to have them on for multiclass racing)

They sit seriously high.

Do you use vive or oculus?
If you use vive, this might help.
https://forum.studio-397.com/index....rformance-improvement-vive.57849/#post-915880

 

[Shawn]

Oculus, but it seems to be stable now at least.

Figured out the mirrors too, setting a lower resolution seems to help, just have to keep it in 16:9 ratio so 720p is the closest together it seems you can get the UI.

 

[Mark Fuller]

Figured out the mirrors too, setting a lower resolution seems to help, just have to keep it in 16:9 ratio so 720p is the closest together it seems you can get the UI.

What did you actually settle on? 720 x ?? Also, try out the SHQM-HUD as option C fits around the central mirror and gives a lot of info.

Edit: Tested 1280x720 and seems to be OK. Virtual mirror easier to view now.

 

[ECAR_Tracks]

Just quit the idea when I read the OT have a 1080ti and can only play against 8 AIs not to mention the very low in-game settings being used.

This technology is years from be minimally decent.

 

[MarcG]

Just quit the idea when I read the OT have a 1080ti and can only play against 8 AIs not to mention the very low in-game settings being used.

This technology is years from be minimally decent.

I wouldn't read too much into the OP,,I run a 970 and race against 29 AI with ease.

 

[Magus]

Just quit the idea when I read the OT have a 1080ti and can only play against 8 AIs not to mention the very low in-game settings being used.

This technology is years from be minimally decent.

I have a 3930k with 980Ti and on well optmised content I can run a race with 20AI (once pack spreads) at 90fps with mostly Medium settings (but no shadows).

 

[Shawn]

What did you actually settle on? 720 x ?? Also, try out the SHQM-HUD as option C fits around the central mirror and gives a lot of info.

Edit: Tested 1280x720 and seems to be OK. Virtual mirror easier to view now.

yep went 720, it definitely seemed better. not sure if it messed up text or if it was just my eyes though

 

[Shawn]

here's a new one, could not run crew chief today, when having it switched on it annihilated my fps and made it all a stuttering mess, arguably worse then simhub, so it looks like you also can't use crew chief in vr? (when online with 30+ drivers)

 

[MarcG]

here's a new one, could not run crew chief today, when having it switched on it annihilated my fps and made it all a stuttering mess, arguably worse then simhub, so it looks like you also can't use crew chief in vr? (when online with 30+ drivers)

I've used it online just fine albeit not with that many people on the server (max 15 I think), maybe it bogs down a bit with a big load. If it happens again please report in the crew chief thread so they're aware of it.

 

[Magus]

I use Crew Chief without fail in VR with 20AI. No such dismal performace occurrences you mention for me.

 

[Shawn]

Thanks MarcG and Magus.

Something definitely isn't right, went from 30-50 overhead to running in the minuses with crew chief on and 30ai (comparative test to online after I had to leave the server to test)

 

[The Iron Wolf]

@Shawn Jacobs : I recently did a performance pass on rF2 shared memory plugin and found no evidence it has any performance impact at all. Crew Chief itself, however, does a bit more work than SM plugin, and I am planning to do a performance pass on it at some point.

Couple of questions:
* do you notice performance drop when SM plugin is on, but CC is not running?
* what processor do you have?
* do you use nAudio or default Audio?

I do not race online in rF2 and rF2 is different online from offline in terms of internals. If you would like to help us, I'll send you instructions on how to capture trace for us to investigate. If you provide such trace, I could use it to see if there are perf differences for online.

 

[The Iron Wolf]

One more thing: in some configurations this CC ability might be helpful, but do it at your own risk:

Running on a single CPU
-----------------------
You can set the processor affinity for Crew Chief in TaskManager, but this will have to be done each time you start the app. Alternatively, you can start the app with an addition argument "cpu1", "cpu2", ... "cpu8", like this:
[full path]\CrewChiefV4.exe cpu4
this will set the processor affinity to the 4th CPU in your system (usually referred to as CPU3 - they're zero-indexed).

 

[Shawn]

@Shawn Jacobs : I recently did a performance pass on rF2 shared memory plugin and found no evidence it has any performance impact at all. Crew Chief itself, however, does a bit more work than SM plugin, and I am planning to do a performance pass on it at some point.

Couple of questions:
* do you notice performance drop when SM plugin is on, but CC is not running?
* what processor do you have?
* do you use nAudio or default Audio?

I do not race online in rF2 and rF2 is different online from offline in terms of internals. If you would like to help us, I'll send you instructions on how to capture trace for us to investigate. If you provide such trace, I could use it to see if there are perf differences for online.

Hi mate

Thanks for the reply.

To be honest I haven't tested with the plug in disabled.

The result was very similar to when I had a simhub dash running, just amplified which I'm guessing may relate to cc pulling a lot more data then the dash and they both use the same plugin.

Definitely happy to help out, I'm doing an online race next weekend expecting 50 cars so it's highly likely I'll have to revert to triples, but I should at least be able to run some tests for you during the week if the practice server is busy.

I'm running a 7700k whuch shows a max of around 50% usage.

On default audio.

Cheers.

 

[Shawn]

One more thing: in some configurations this CC ability might be helpful, but do it at your own risk:

Running on a single CPU
-----------------------
You can set the processor affinity for Crew Chief in TaskManager, but this will have to be done each time you start the app. Alternatively, you can start the app with an addition argument "cpu1", "cpu2", ... "cpu8", like this:
[full path]\CrewChiefV4.exe cpu4
this will set the processor affinity to the 4th CPU in your system (usually referred to as CPU3 - they're zero-indexed).

Awesome I was wondering if that may be a possibility! Guessing rf2 is mainly using the first couple of cores? Wonder if simhub could do something similar....