Does anyone get descent FPS in VR??

[Chilli_40]

I just have to ask this question as I'm certainly no pc or vr expert! Does anyone get descent solid fps with this IL-2 combat sim and Oculus Quest 2 headset? I purchased a pc a while that had a GE Force RTX2070 gpu thinking that it would be able to run this sim with an Oculus Quest 2 headset, well it could run it but not very well, settings low and lots of frame drops so I sold that pc. I replaced it with a,

     ABS Legend Gaming PC

     Processor- AMD Ryzen7 5800X 3.80 GHz 4.7GHz max boost

     Motherboard- ASUS TUF Gaming X570-Plus ATX Motherboard

     Memory-  G.Skill TridentZ RGB 32GB DDR4 3200 MHz

     Graphics- GeForce RTX 3080Ti 12 GB

     Storage- 1 TB 660P M.2 NVMe SSD

hoping this would be the answer and so far I'm not seeing any better resulted than I did with the RTX 2070.  Occasional it flitters up around 95 fps if there is absolutely nothing going on but for the most part it's down in the mid 40's which I would even mind if that was the bottom. Today while playing a single player mission with maybe a dozen planes around, the FPS bottomed out to like 13fps and stayed down there till I was turned away from the main body of planes! I have tried every settings I can find to get the frames up and nothing really seems to matter much. Next step is to overclock it, but I really thought it should preform better than what it is, what am I missing here?? I benchmarked both GPU & CPU and didn't seem to find anything wrong for as much as I know!

In Game Graphic Settings 

High

UI scale- Auto

Shadows- Medium

Mirrors- Simple

Distant Landscape- Normal

Canopy Reflections -Off

Horizontal Draw Distance- 70km

Landscape Filter- Sharp

Terrain Roughness- Medium

Grass Quality- Off

Clouds Quality- Medium

Antialiasing type- MSAA

Target FPS- Off

Dynamic resolution- Full

Antialiasing- 4

Gamma- 1

SSAO- checked

HDR- checked

Sharpen- Checked

Use 4k textures- Checked

 

Nothing is maxed out like I though I would be able to run! Damn my wife for introducing me to VR headsets which intern got me hooked on IL-2 & DCS World the only 2 sims I want to be able to operate with at least some quality! PS: I received as a bonus when I bought the new pc, a key to the game BattleField 2042 which I couldn't care less about playing, if anyone can get this pc of mine performing better, BattleField 2042 is yours. Thanks for any ideas or insights.

  

     

 

[Drum]

Hi MStewart40, that's a pretty nice rig you have, you shouldn't have much trouble getting good performance out of it.  VR requires a lot of tweaking to get the most out of one's experience, unfortunately.  Check this link out for some good tweaking information:  

 

[Slo-Mo]

You have almost the same system as me, I have a 3090 but otherwise almost the same. I run at constant 90 fps in IL-2. I would suggest changeing a couple of really resource intensive settings (see below) as well as to use the modified OpenVR dll with AMD FidelityFX SuperResolution Upscaler which gives a healthy fps boost vs almost no loss i image quality. 

 

Set graphics settings to Balanced

Antialiasing- 2

SSAO- uncheck

HDR- uncheck

Sharpen- uncheck, use AMD FSR mod by fholger

Gamma- 0.8 (easier to spot)

Landscape Filter- Blurry (easier to spot)

 

 

Cheers

[firdimigdi]

@MStewart40 - MSAA 4x is your FPS killer. To get consistent 90Hz you have to forget about MSAA sadly.

 

That said, check out my settings from the above post as a starting point, although it's with a g2 and a slightly stronger CPU with a tad faster memory you should be able to get similar results with some tinkering:

 

 

[Chilli_40]

Thank you all very much for your help and input I really appreciate your time.

[Mtnbiker1998]

like the others said, msaa 4x is the big killer. I use fxaa 2x with my 2060Super.

[Chilli_40]

18 hours ago, Slo-Mo said:

You have almost the same system as me, I have a 3090 but otherwise almost the same. I run at constant 90 fps in IL-2. I would suggest changeing a couple of really resource intensive settings (see below) as well as to use the modified OpenVR dll with AMD FidelityFX SuperResolution Upscaler which gives a healthy fps boost vs almost no loss i image quality. 

 

Set graphics settings to Balanced

Antialiasing- 2

SSAO- uncheck

HDR- uncheck

Sharpen- uncheck, use AMD FSR mod by fholger

Gamma- 0.8 (easier to spot)

Landscape Filter- Blurry (easier to spot)

 

Thank you for the help Slo-Mo, I'll try those settings tonight. Question, did you overclock your system or leave it alone? 

Cheers

 

[Chilli_40]

Ok, I have installed correctly I think Openvr_fsr to my steam folder and changed the name of the original. When I open the openvr_mod.cfg with notepad I'm not seeing any of these settings, what am I doing wrong!

openvr_mod.cfg:

{
  "fsr": {
    "enabled": true,
    "renderScale": 0.8,
    "sharpness": 0.85,
    "radius": 0.8,
    "applyMIPBias": true,
    "debugMode": false
  }
}

[Slo-Mo]

2 hours ago, MStewart40 said:

Ok, I have installed correctly I think Openvr_fsr to my steam folder and changed the name of the original. When I open the openvr_mod.cfg with notepad I'm not seeing any of these settings, what am I doing wrong!

openvr_mod.cfg:

{
  "fsr": {
    "enabled": true,
    "renderScale": 0.8,
    "sharpness": 0.85,
    "radius": 0.8,
    "applyMIPBias": true,
    "debugMode": false
  }
}

 

The two files, openvr_api.dll and openvr_mod.cfg should reside in the "IL-2 Sturmovik Great Battles\bin\game" folder. Other than that there is not more to do besides fiddling with the settings in the .cfg file. Your .cfg looks about right to me, but below is mine so you can compare or copy & paste to yours if you like.

 

{
  "fsr": {
    // enable AMD FidelityFX Super Resolution
    "enabled": true,

    // Per-dimension render scale. If <1, will lower the game's render resolution
    // accordingly and afterwards upscale to the "native" resolution set in SteamVR.
    // If >1, the game will render at its "native" resolution, and afterwards the
    // image is upscaled to a higher resolution as per the given value.
    // If =1, effectively disables upsampling, but you'll still get the sharpening stage.
    // AMD presets:
    //   Ultra Quality => 0.77
    //   Quality       => 0.67
    //   Balanced      => 0.59
    //   Performance   => 0.50
    "renderScale": 0.87,

    // tune sharpness, values range from 0 to 1
    "sharpness": 0.9,
    
    // Only apply FSR to the given radius around the center of the image.
    // Anything outside this radius is upscaled by simple bilinear filtering,
    // which is cheaper and thus saves a bit of performance. Due to the design
    // of current HMD lenses, you can experiment with fairly small radii and may
    // still not see a noticeable difference.
    // Sensible values probably lie somewhere between [0.2, 1.0]. However, note
    // that, since the image is not spheric, even a value of 1.0 technically still
    // skips some pixels in the corner of the image, so if you want to completely
    // disable this optimization, you can choose a value of 2.
    // IMPORTANT: if you face issues like the view appearing offset or mismatched
    // between the eyes, turn this optimization off by setting the value to 2.0
    "radius": 0.75,

    // if enabled, applies a negative LOD bias to texture MIP levels
    // should theoretically improve texture detail in the upscaled image
    // IMPORTANT: if you experience issues with rendering like disappearing
    // textures or strange patterns in the rendering, try turning this off
    // by setting the value to false.
    "applyMIPBias": true,
    
    // If enabled, will visualize the radius to which FSR is applied.
    // Will also periodically log the GPU cost for applying FSR in the
    // current configuration.
    "debugMode": false
  }
}

 

Cheers

[Chilli_40]

That's the destination folder for Steam also?

[Slo-Mo]

6 hours ago, MStewart40 said:

That's the destination folder for Steam also?

 

I don't have the Steam version of IL-2 Sturmovik Great Battles, but I have the Steam version of IL-2 Cliffs of Dover. It installs under Steam\steamapps\common directory. I reccon that is where IL-2 Sturmovik Great Battles ends up as well.

 

 

So that means that the full path to your IL-2 Sturmovik Great Battles\bin\game folder would be "Steam\steamapps\common\IL-2 Sturmovik Great Battles\bin\game". In the game folder you place the two files, openvr_api.dll and openvr_mod.cfg.

 

Cheers

[Customizer171]

19 hours ago, MStewart40 said:

Ok, I have installed correctly I think Openvr_fsr to my steam folder and changed the name of the original. When I open the openvr_mod.cfg with notepad I'm not seeing any of these settings, what am I doing wrong!

openvr_mod.cfg:

{
  "fsr": {
    "enabled": true,
    "renderScale": 0.8,
    "sharpness": 0.85,
    "radius": 0.8,
    "applyMIPBias": true,
    "debugMode": false
  }
}

I thought the same first time I opened it, but if you read closely the info is in the text. It looks like some have removed all lines that start with //

I also use Notepad++ and had to enable editing in one of the top tabs before I could change it.

16 hours ago, Slo-Mo said:

 

The two files, openvr_api.dll and openvr_mod.cfg should reside in the "IL-2 Sturmovik Great Battles\bin\game" folder. Other than that there is not more to do besides fiddling with the settings in the .cfg file. Your .cfg looks about right to me, but below is mine so you can compare or copy & paste to yours if you like.

 

{
  "fsr": {
    // enable AMD FidelityFX Super Resolution
    "enabled": true,

    // Per-dimension render scale. If <1, will lower the game's render resolution
    // accordingly and afterwards upscale to the "native" resolution set in SteamVR.
    // If >1, the game will render at its "native" resolution, and afterwards the
    // image is upscaled to a higher resolution as per the given value.
    // If =1, effectively disables upsampling, but you'll still get the sharpening stage.
    // AMD presets:
    //   Ultra Quality => 0.77
    //   Quality       => 0.67
    //   Balanced      => 0.59
    //   Performance   => 0.50
    "renderScale": 0.87,

    // tune sharpness, values range from 0 to 1
    "sharpness": 0.9,
    
    // Only apply FSR to the given radius around the center of the image.
    // Anything outside this radius is upscaled by simple bilinear filtering,
    // which is cheaper and thus saves a bit of performance. Due to the design
    // of current HMD lenses, you can experiment with fairly small radii and may
    // still not see a noticeable difference.
    // Sensible values probably lie somewhere between [0.2, 1.0]. However, note
    // that, since the image is not spheric, even a value of 1.0 technically still
    // skips some pixels in the corner of the image, so if you want to completely
    // disable this optimization, you can choose a value of 2.
    // IMPORTANT: if you face issues like the view appearing offset or mismatched
    // between the eyes, turn this optimization off by setting the value to 2.0
    "radius": 0.75,

    // if enabled, applies a negative LOD bias to texture MIP levels
    // should theoretically improve texture detail in the upscaled image
    // IMPORTANT: if you experience issues with rendering like disappearing
    // textures or strange patterns in the rendering, try turning this off
    // by setting the value to false.
    "applyMIPBias": true,
    
    // If enabled, will visualize the radius to which FSR is applied.
    // Will also periodically log the GPU cost for applying FSR in the
    // current configuration.
    "debugMode": false
  }
}

 

Cheers

 

I highjack this thread because I also have questions about the same subject.

The original openvr_api.dll, can I just rename it and leave it in the folder or should it be removed (and saved somewhere) before putting the new ones in??  

 

[Slo-Mo]

30 minutes ago, Customizer171 said:

I thought the same first time I opened it, but if you read closely the info is in the text. It looks like some have removed all lines that start with //

I also use Notepad++ and had to enable editing in one of the top tabs before I could change it.

 

I highjack this thread because I also have questions about the same subject.

The original openvr_api.dll, can I just rename it and leave it in the folder or should it be removed (and saved somewhere) before putting the new ones in??  

 

You can just rename the original one to like "openvr_api.dll.org" and leave it in the same folder. I do however recommend that you use a mod enabler like JGSME or similar. Makes your life a lot easier when it comes to enabling/disabling mods rather than renaming files back and forth. Link to JGSME download: https://www.softpedia.com/get/Others/Miscellaneous/Generic-Mod-Enabler.shtml

 

Cheers

Edited October 31, 2021 by Slo-Mo

[Chilli_40]

Slo-Mo, where do you unzip the  AMD FidelityFX SuperResolution Upscaler zip files to?

[Slo-Mo]

1 hour ago, MStewart40 said:

Slo-Mo, where do you unzip the  AMD FidelityFX SuperResolution Upscaler zip files to?

Non-Steam version: Unzip them in the "IL-2 Sturmovik Great Battles\bin\game" folder

Steam version: Unzip them in the "Steam\steamapps\common\IL-2 Sturmovik Great Battles\bin\game"

 

You can also use a mod enabler to make the process of enabling/disabling mods more easy, like JGSME. Here is forum link to tutorial as well as the user guide.

 

User guide: https://manualzilla.com/doc/6902982/jonesoft-generic-mod-enabler-v2.6-user-guide

 

Cheers

Edited November 1, 2021 by Slo-Mo