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Posted (edited)

I am currently using a G2.

 

While in Mixed Reality Portal, it consumes about 2gb VRAM already. Then I launch steamvr, it used a total of 3GB of VRAM.

 

After that I open up DCS, I see 9.7/10GB of VRAM usage (BY fpsVR) and it started VRAM overflow (dropping flames, purple line in fpsVR)

 

How do you coup with this problem? By lowering the VRAM usage of WMR and STEAMVR, or lower DCS settings? (but for me it is already minimum... it looks so bad already)

 

Finally my card is not constrained by its processing power, but it's VRAM. 

 

 

Screen_210530_020035.png


Edited by dg6546
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Given your settings in game I would suggest the only thing left to do is MSAA down x2, what is your crm in steam?

SYSTEM SPECS: Hardware Intel Corei7-9700K @ 5.1 GHz, 32Gb RAM, EVGA 3090 XC3, Dell S2716DG, Thrustmaster Warthog + MFG Crosswinds V2, HP Reverb G2 @ 2836 x 2768
SOFTWARE: Microsoft Windows 10 Pro x64, VoiceAttack & VIACOM PRO, TacView

VR Stuff:   My Settings for 3090 and G2  My Settings for 1080ti  Shaders MOD for VR  My variant of Kegetys mod with clear water and also IC PASS for current beta & stable, Patch Status

 

1569924735_WildcardsBadgerFAASig.jpg.dbb8c2a337e37c2bfb12855f86d70fd5.jpg

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Posted (edited)

Your only chance is to lower SS settings and anything else that will cost VRAM usage (textures, any additional monitor etc.). For a high resolution HMD like the G2 and DCS, VRAM is a bottleneck. https://forums.eagle.ru/topic/246767-more-vram-helps-a-lot-with-dcs-vr-performance/


Edited by RealDCSpilot

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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In the end it depends on the missions you play, a small singleplayer mission will show much lesser VRAM usage than a full blown module soup on MP in Syria.

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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Posted (edited)

It's enough VRAM for DCS.

 

I get consistent 45+ FPS with much higher settings than you, even in multiplayer.

 

	["graphics"] = {
		["DOF"] = 0,
		["LensEffects"] = 0,
		["MSAA"] = 1,
		["SSAA"] = 0,
		["SSAO"] = 1,
		["SSLR"] = 0,
		["anisotropy"] = 4,
		["aspect"] = 1.7777777777778,
		["box_mouse_cursor"] = true,
		["chimneySmokeDensity"] = 1,
		["civTraffic"] = "medium",
		["clouds"] = 3,
		["clutterMaxDistance"] = 1000,
		["cockpitGI"] = 0,
		["effects"] = 3,
		["flatTerrainShadows"] = 0,
		["forestDetailsFactor"] = 0.75,
		["forestDistanceFactor"] = 0.75,
		["fullScreen"] = true,
		["heatBlr"] = 0,
		["height"] = 2160,
		["lights"] = 2,
		["messagesFontScale"] = 1.25,
		["motionBlur"] = 0,
		["multiMonitorSetup"] = "1camera",
		["outputGamma"] = 2,
		["preloadRadius"] = 75400,
		["rainDroplets"] = true,
		["scaleGui"] = 1,
		["sceneryDetailsFactor"] = 1,
		["shadowTree"] = false,
		["shadows"] = 4,
		["sync"] = false,
		["terrainTextures"] = "max",
		["textures"] = 2,
		["useDeferredShading"] = 1,
		["visibRange"] = "High",
		["water"] = 2,
		["width"] = 3840,
	},

 


Edited by FoxTwo
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For 90 FPS (3600X & 3080)
2212x2160 SteamVR (about 100% G1 or 50% G2 Reverb)
["graphics"] = {
["DOF"] = 0,
["LensEffects"] = 0,
["MSAA"] = 0,
["SSAA"] = 0,
["SSAO"] = 0,
["SSLR"] = 0,
["anisotropy"] = 3,
["aspect"] = 1.7777777777778,
["box_mouse_cursor"] = false,
["chimneySmokeDensity"] = 0,
["civTraffic"] = "",
["clouds"] = 0,
["clutterMaxDistance"] = 0,
["cockpitGI"] = 0,
["effects"] = 3,
["flatTerrainShadows"] = 2,
["forestDetailsFactor"] = 0.5,
["forestDistanceFactor"] = 0.71,
["fullScreen"] = false,
["heatBlr"] = 0,
["height"] = 1440,
["lights"] = 2,
["messagesFontScale"] = 1,
["motionBlur"] = 0,
["multiMonitorSetup"] = "1camera",
["outputGamma"] = 1.4,
["preloadRadius"] = 19500,
["rainDroplets"] = false,
["scaleGui"] = 1,
["sceneryDetailsFactor"] = 0.5,
["shadowTree"] = false,
["shadows"] = 0,
["sync"] = false,
["terrainTextures"] = "max",
["textures"] = 2,
["useDeferredShading"] = 1,
["visibRange"] = "Low",
["water"] = 0,
["width"] = 2560,
},

The above is my current aerobatics 90 FPS low fidelity setting for pure flying fun. I use 3128x3056 SteamVR, MSAA 2x and higher settings when I am contend with 45 FPS+ for flights focusing on systems simulation and image fidelity.

To balance GPU and CPU frametimes I use fpsVR. The settings are a moving target with patches and hardware upgrades.

How to achieve high framerates in VR

VIC-20@1.108 MHz, onboard GPU, 5KB RAM, μυωπία goggles, Competition Pro HOTAS

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6 hours ago, speed-of-heat said:

Given your settings in game I would suggest the only thing left to do is MSAA down x2, what is your crm in steam?

 

What is CRM?

 

 

 

5 hours ago, RealDCSpilot said:

Your only chance is to lower SS settings and anything else that will cost VRAM usage (textures, any additional monitor etc.). For a high resolution HMD like the G2 and DCS, VRAM is a bottleneck. https://forums.eagle.ru/topic/246767-more-vram-helps-a-lot-with-dcs-vr-performance/

 

 

I think this is the fact, but is there any work around?

 

 

 

2 hours ago, FoxTwo said:

It's enough VRAM for DCS.

 

I get consistent 45+ FPS with much higher settings than you, even in multiplayer.

 


	["graphics"] = {
		["DOF"] = 0,
		["LensEffects"] = 0,
		["MSAA"] = 1,
		["SSAA"] = 0,
		["SSAO"] = 1,
		["SSLR"] = 0,
		["anisotropy"] = 4,
		["aspect"] = 1.7777777777778,
		["box_mouse_cursor"] = true,
		["chimneySmokeDensity"] = 1,
		["civTraffic"] = "medium",
		["clouds"] = 3,
		["clutterMaxDistance"] = 1000,
		["cockpitGI"] = 0,
		["effects"] = 3,
		["flatTerrainShadows"] = 0,
		["forestDetailsFactor"] = 0.75,
		["forestDistanceFactor"] = 0.75,
		["fullScreen"] = true,
		["heatBlr"] = 0,
		["height"] = 2160,
		["lights"] = 2,
		["messagesFontScale"] = 1.25,
		["motionBlur"] = 0,
		["multiMonitorSetup"] = "1camera",
		["outputGamma"] = 2,
		["preloadRadius"] = 75400,
		["rainDroplets"] = true,
		["scaleGui"] = 1,
		["sceneryDetailsFactor"] = 1,
		["shadowTree"] = false,
		["shadows"] = 4,
		["sync"] = false,
		["terrainTextures"] = "max",
		["textures"] = 2,
		["useDeferredShading"] = 1,
		["visibRange"] = "High",
		["water"] = 2,
		["width"] = 3840,
	},

 

 

What is your ss setting? Just to confirm you are using a 3080?

 

 

 

53 minutes ago, Motomouse said:

For 90 FPS (3600X & 3080)
2212x2160 SteamVR (about 100% G1 or 50% G2 Reverb)
["graphics"] = {
["DOF"] = 0,
["LensEffects"] = 0,
["MSAA"] = 0,
["SSAA"] = 0,
["SSAO"] = 0,
["SSLR"] = 0,
["anisotropy"] = 3,
["aspect"] = 1.7777777777778,
["box_mouse_cursor"] = false,
["chimneySmokeDensity"] = 0,
["civTraffic"] = "",
["clouds"] = 0,
["clutterMaxDistance"] = 0,
["cockpitGI"] = 0,
["effects"] = 3,
["flatTerrainShadows"] = 2,
["forestDetailsFactor"] = 0.5,
["forestDistanceFactor"] = 0.71,
["fullScreen"] = false,
["heatBlr"] = 0,
["height"] = 1440,
["lights"] = 2,
["messagesFontScale"] = 1,
["motionBlur"] = 0,
["multiMonitorSetup"] = "1camera",
["outputGamma"] = 1.4,
["preloadRadius"] = 19500,
["rainDroplets"] = false,
["scaleGui"] = 1,
["sceneryDetailsFactor"] = 0.5,
["shadowTree"] = false,
["shadows"] = 0,
["sync"] = false,
["terrainTextures"] = "max",
["textures"] = 2,
["useDeferredShading"] = 1,
["visibRange"] = "Low",
["water"] = 0,
["width"] = 2560,
},

The above is my current aerobatics 90 FPS low fidelity setting for pure flying fun. I use 3128x3056 SteamVR, MSAA 2x and higher settings when I am contend with 45 FPS+ for flights focusing on systems simulation and image fidelity.

To balance GPU and CPU frametimes I use fpsVR. The settings are a moving target with patches and hardware upgrades.

 

I can't live without MSAA...

 

 

Thanks for both config share. I will try it when I have time!

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I posted my DCS VR graphics config, and yes I'm using a 3080. Not really running into VRAM issues in multiplayer.

 

Here are my nvidia and steamVR settings.

 

Screenshot 2021-05-29 225835.pngScreenshot 2021-05-29 225938.pngScreenshot 2021-05-29 230026.png

 

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Crm is custome resolution modifier, the steam % I would not recommend running above 100%…

Turn MSAA down to x 2

SYSTEM SPECS: Hardware Intel Corei7-9700K @ 5.1 GHz, 32Gb RAM, EVGA 3090 XC3, Dell S2716DG, Thrustmaster Warthog + MFG Crosswinds V2, HP Reverb G2 @ 2836 x 2768
SOFTWARE: Microsoft Windows 10 Pro x64, VoiceAttack & VIACOM PRO, TacView

VR Stuff:   My Settings for 3090 and G2  My Settings for 1080ti  Shaders MOD for VR  My variant of Kegetys mod with clear water and also IC PASS for current beta & stable, Patch Status

 

1569924735_WildcardsBadgerFAASig.jpg.dbb8c2a337e37c2bfb12855f86d70fd5.jpg

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@FoxTwo

Yeah, those settings may be fine for a while.
But sooner or later in a massive MP mission a 3080 will fall short because average VRAM usage will become >11GB over time.

Turning down as much as possible is the only option. A 3080 might be enough for VR and a G2 running at full resolution for "normal" VR games, but both of our most modern flightsims aren't normal in any aspect.
Just for comparison: these are my 2.7 settings in the options.lua, besides a lot of system wide optimizations. Smooth 40 fps locked in 80 Hz mode (frametime varies from 16ms to 24ms) in 40 player scenarios on Syria map. 2648x2740 per eye and Reshade sharpening for VR enabled (before ReShade for VR was released, i was running 2880x3200 per eye). I can play these missions for hours, switch to all available modules without any issue.

["VR"] = {
        ["bloom"] = true,
        ["box_mouse_cursor"] = true,
        ["custom_IPD"] = "62",
        ["custom_IPD_enable"] = true,
        ["enable"] = true,
        ["hand_controllers"] = false,
        ["interaction_with_grip_only"] = false,
        ["mirror_crop"] = false,
        ["mirror_source"] = 0,
        ["mirror_use_DCS_resolution"] = true,
        ["msaaMaskSize"] = 0.69,
        ["pixel_density"] = 1,
        ["prefer_built_in_audio"] = true,
        ["use_mouse"] = false,

 

["format"] = 1,
    ["graphics"] = {
        ["DOF"] = 0,
        ["LensEffects"] = 2,
        ["MSAA"] = 2,
        ["SSAA"] = 0,
        ["SSAO"] = 1,
        ["SSLR"] = 1,
        ["anisotropy"] = 4,
        ["aspect"] = 1,
        ["box_mouse_cursor"] = true,
        ["chimneySmokeDensity"] = 10,
        ["civTraffic"] = "",
        ["clouds"] = 0,
        ["clutterMaxDistance"] = 800,
        ["cockpitGI"] = 1,
        ["effects"] = 3,
        ["flatTerrainShadows"] = 1,
        ["forestDetailsFactor"] = 1,
        ["forestDistanceFactor"] = 1,
        ["fullScreen"] = false,
        ["heatBlr"] = 1,
        ["height"] = 1024,
        ["lights"] = 2,
        ["messagesFontScale"] = 1,
        ["motionBlur"] = 0,
        ["multiMonitorSetup"] = "1camera",
        ["outputGamma"] = 2.2,
        ["preloadRadius"] = 150000,
        ["rainDroplets"] = true,
        ["scaleGui"] = 1,
        ["sceneryDetailsFactor"] = 1,
        ["shadowTree"] = false,
        ["shadows"] = 4,
        ["sync"] = false,
        ["terrainTextures"] = "max",
        ["textures"] = 2,
        ["useDeferredShading"] = 1,
        ["visibRange"] = "Extreme",
        ["water"] = 2,
        ["width"] = 1024,
    },

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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I would believe  that to be correct 

SYSTEM SPECS: Hardware Intel Corei7-9700K @ 5.1 GHz, 32Gb RAM, EVGA 3090 XC3, Dell S2716DG, Thrustmaster Warthog + MFG Crosswinds V2, HP Reverb G2 @ 2836 x 2768
SOFTWARE: Microsoft Windows 10 Pro x64, VoiceAttack & VIACOM PRO, TacView

VR Stuff:   My Settings for 3090 and G2  My Settings for 1080ti  Shaders MOD for VR  My variant of Kegetys mod with clear water and also IC PASS for current beta & stable, Patch Status

 

1569924735_WildcardsBadgerFAASig.jpg.dbb8c2a337e37c2bfb12855f86d70fd5.jpg

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I have not ever encountered any vram not enough problem with my old 1080ti (Yes, 1080ti got more VRAM than 3080), also OG vive.

14 hours ago, speed-of-heat said:

Crm is custome resolution modifier, the steam % I would not recommend running above 100%…

Turn MSAA down to x 2

50%

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Posted (edited)

then its  more likely that you have some other environmental problem if your crm is operating at 50% of the steam 100%


Edited by speed-of-heat

SYSTEM SPECS: Hardware Intel Corei7-9700K @ 5.1 GHz, 32Gb RAM, EVGA 3090 XC3, Dell S2716DG, Thrustmaster Warthog + MFG Crosswinds V2, HP Reverb G2 @ 2836 x 2768
SOFTWARE: Microsoft Windows 10 Pro x64, VoiceAttack & VIACOM PRO, TacView

VR Stuff:   My Settings for 3090 and G2  My Settings for 1080ti  Shaders MOD for VR  My variant of Kegetys mod with clear water and also IC PASS for current beta & stable, Patch Status

 

1569924735_WildcardsBadgerFAASig.jpg.dbb8c2a337e37c2bfb12855f86d70fd5.jpg

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IDK I'm pretty sure my sytem (G2, 3090) eats up most of the VRAM, I think basically DCS will eat it all then let it go as it needs to.

 

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Posted (edited)
18 hours ago, FoxTwo said:

I've spent several hours in Hoggit GAW and SAW without issue.

 

Yes, it maybe possible for a while, if you only use one module for the whole time. But my playstyle is different, those missions offer a wide variety of targets and objectives, so i switch modules often for the best aircraft for the particular job. Raiding airfields with a Ka-50 or Harrier behind enemy lines, sink ships with a F-18 or Viggen, attacking a vehicle convoy with a A-10C or going air to air with an F-14...
This is how VRAM usage looks then: https://forums.eagle.ru/uploads/monthly_2020_10/VRAM_usage_Syria.jpg.0c970d322e0f7232b2fc7c0f2f5ff0ba.jpg


But keep in mind, everything with maxed out graphics quality settings...


Edited by RealDCSpilot

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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4 hours ago, RealDCSpilot said:

Yes, it maybe possible for a while, if you only use one module for the whole time. But my playstyle is different, those missions offer a wide variety of targets and objectives, so i switch modules often for the best aircraft for the particular job. Raiding airfields with a Ka-50 or Harrier behind enemy lines, sink ships with a F-18 or Viggen, attacking a vehicle convoy with a A-10C or going air to air with an F-14...
This is how VRAM usage looks then: https://forums.eagle.ru/uploads/monthly_2020_10/VRAM_usage_Syria.jpg.0c970d322e0f7232b2fc7c0f2f5ff0ba.jpg


But keep in mind, everything with maxed out graphics quality settings...

 

I think you are using a 3090 not a 3080 tho...

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On 5/29/2021 at 8:01 PM, dg6546 said:

After that I open up DCS, I see 9.7/10GB of VRAM usage (BY fpsVR) and it started VRAM overflow (dropping flames, purple line in fpsVR)

 

1 hour ago, dg6546 said:

I think you are using a 3090 not a 3080 tho...

Yes, but it explains your own findings.

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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Posted (edited)
4 hours ago, RealDCSpilot said:

 

Yes, but it explains your own findings.

 

This is a problem with DCS and asset loading/culling. I mean, you can brute force it with VRAM I guess, kind of? But if you want it fixed don't look for a hardware solution.

 

I rarely see DCS actually using more than 7.5GB of VRAM.

 

For those of you running mutli hour multiplayer missions and changing airframes often, maybe you should be asking ED to change their 32bit normal maps to 8 bit to reduce VRAM load.


Edited by FoxTwo
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Posted (edited)

Well for me the problem is kinda solved. 😉
Was lucky to get my 3090 for a normal price.


Edited by RealDCSpilot

i9 10920X @4.8GHz, X299X HEDT mainboard, RTX3090 OC, quad channel 64 GB RAM @3600, Valve Index, HOTAS & Rudder: all Virpil with FFB base mod (G940), DCS: all modules

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  • 2 weeks later...

From everything I have read, DCS is not Rodin's Thinker and your not going to get it to work with a sculptors hammer. DCS is a very big freaking boulder and your going to need the biggest badest sledge hammer you can get your hands on to make it work. And until the net generation for GC's come out the 3090 is the biggest hammer in the bag.

Or, DCS can start writing code that takes advantage of some of the performance built for the cards be they AMD or Nvidia. Maybe AMD's newest FSR enhancement can bridge the gap since they say it will also work on Nvidia cards.

 


Edited by RackMonkey

MSI Z490 Tomahawk, I5-10600k, 2X512GB NvME, 2070 Super, 32GB DDR4 3200, Vizio 40" 4K, Reverb G2, T50-CM2

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