Source
r/Vive•
LeClass

Advice for VR Performance

Hardware

Hi guys, I was buzzing as I picked up a first generation HTC Vive today, I do sim racing so mainly sitting down.

Set everything up, lowered all my graphics settings in Assetto Corsa/iRacing to something tolerable and it's still really quite blurry and hard to pick reference points out for racing. To make matters worse, the fps starts off capped at 92 which is fine, but a few minutes in it just crashes to 44.7 and it's almost like it's suddenly capped at 44.7 FPS because it just stays there. I tried loading into a race, but all the other cars just add to the CPU load and I can't get anywhere near 92 FPS.

I heard the blurryness/pixelation can be a CPU bottleneck which in my case sounds suspect as my specs are i7 3770k, 16gb ddr3 1333mhz, Vega 56.

Also upon plugging everything in, windows makes the device connected noise about 4 times then finally recognises the Vive...

Any advice is appreciated, please tell me if my CPU is just too shit.

Cheers

Posted Jan 19, 2020, 9:02 PM UTC

225
zurohki•

That CPU is not new. You'd have to look at CPU activity while the game is running to know if it's holding you back.

2
LeClassOP•

That's the thing, the only thing pinned in task manager is my ram, CPU is around 60-90%.

It's old but at the end of the day according to CPU benchmark similar to an i5-6500.

1
LubeAhhh•

It sounds like you're suffering from a CPU bottleneck. I suffered even with a 4790K, paired with my RTX 2070. Upgrading to a 7700K mitigated the bottleneck almost entirely. Since your bottleneck is on the CPU, lowering the settings won't actually do anything to increase performance. Turning the settings up or down will make minimal changes to the framerate.

Also, your RAM is quite slow. Slow enough to where it definitely matters for games. VR uses a lot more resources than normal games.

2
LeClassOP•

Bummer, cheers I'll do a bit of research on ram and vr see what I can find.

1
Jun1orDemiGodVR Enthusiast•

Computer says 'NO'.

You need a new one.

And unfortunately the OG Vive isn't really all that great for sim racing, the low resolution will be a problem, you'll be at a disadvantage if you compete.

1
LeClassOP•

That's the thing, the PC can handle three 1920x1080 monitors on iRacing and assetto corsa on max settings in a race of 40 cars at like 50-70fps. It's annoying because the pc has done the job for so long now, do I really want to upgrade it to still suffer with the low resolution of the og Vive. Although I can set it to like 300% the original resolution per eye, is this supersampling?

So tempted to sell the Vive on and just get three ultra thin bezel monitors instead 😅

2
Jun1orDemiGodVR Enthusiast•

Yes, that is SS (supersampling) That will only improve thing a certain amount, if the pixels aint there them you can only get a certain level of improvement with SS.

You've seen how good and immersive VR racing is so I'd suggest saving and investing in better VR kit, a higher resolution HMD then more flat screens. I only play racing games for fun and they are so much more fun in VR.

1
mjr1•

I play a ton of Iracing and Dirty Rally on Vive Pro. It's crazy immersive. I can imagine the original vive wouldn't be amazing, I had one

1
Stradocaster•

Never heard that about the vive. Perfectly happy with mine

1
Jun1orDemiGodVR Enthusiast•

Good for you. But my comment was to OP that does sim racing. I don't even know who you are or why you even bothered commenting.

-5
Stradocaster•

I exclusively sim race on my Vive and have not had an issue due to fidelity.

Forgive me if my personal experience isn't valid to you.

1
Jun1orDemiGodVR Enthusiast•

You should upgrade your HMD, you'll find the experience MUCH better.

-3
Stradocaster•

FYI the 44 FPS is reproduction/motion smoothing kicking in. It caps it there so it can double it to 90.

I had similar issues in pcars 2 in vr until I did some moderate upgrades. Now on low-medium graphics I maintain 90 FPS no problem and the graphics are good enough to enjoy

1
kendoka153900x|GTX 1080|32GB 3600Mhz CL16•

reproduction

Reprojection*

1
Stradocaster•

Ha! Nice autocorrect, thanks to my iPad keyboard. Good catch

1
kendoka153900x|GTX 1080|32GB 3600Mhz CL16•

Damn you autocorrect! shakes fist

1
LeClassOP•

Haha, so that motion smoothing, turn it off or just lower settings until it can maintain 92? Thank you

1
Helgard88•

I have the exact same setup as you do! I did not run into these problems. The only thing I did was spending a vew hours research on optimal settings and seek for balance on my setup. It runs wel now and enjoying it to the fullest. Just wanted to let you know that you wont need to pull out the wallet to shoot the problems down.

1
wrath_of_grunge•

i second this.

i'm running the game on a slightly better setup 4790k/GTX 1080, with no issues.

1
LeClassOP•

Thank you, you give me some hope. Patience is maybe all that is required. I'll have another play around with it at some point today. Thank you

1
Helgard88•

Check out the forums as they contain valuable information!

1