I found the source of my microstuttering. Sadly it appears to be MSAA as the cause. The stuttering I’m talking about is not framerate related and it’s not immediately apparent. It occurs even at solid 45 fps. If I’m flying along looking straight ahead things appear smooth. If I’m flying low over buildings or forest and I look sideways at the buildings/forest I see microstuttering. With MSAA off there is none of this.
This may be more of a motion/reprojection @ 45 fps thing instead of a DCS thing. I noticed the same microstuttering in AeroFly FS2 over the Orbx Innsbruck terrain. AFS2 at Innsbruck also runs at 45 fps for me in the O+ with 200% Supersampling. It looks GORGEOUS but too bad its still AFS2 with boring flight model and lifeless environment, no ATC, no weather etc. etc.
In DCS, if I wanted any smoothness at all outside of turning everything to OFF/LOW in settings, I had to enable “motionReprojectionMode” : “auto” in the default.vrsettings file. Without that set to auto I get fps fluctuating all over the place mainly in the 60-70 range in the settings I was running.
I also tested the shaders mod vs no shaders mod. On my system with an OC’d 1080TI I didn’t see much benefit to running the shaders mod. It made things look slightly worse and even though it did increase my fps some it’s still not enough to maintain a constant 90 fps. I can easily maintain 45 fps without the shaders mod and much prefer the lighting, reflections, etc. without it. Canopy reflections look really cool and it sucks to loose that.
IF I could run DCS with 200% SS and MSAA x4 I’d be happy. It’s really disappointing to have to disable MSAA to get a completely smooth experience. I’m someone who can’t stand the sight of jaggies and shimmering in my simulators. I know it doesn’t bother some but I personally can’t stand it.
I’d say the O+ is certainly not comfortable to wear and I totally get the complaints about that. If I were to keep it I’m sure there’s ways to overcome that as some have mentioned. I’d also get some VR lenses to go with it since having to wear my contacts just for VR is a pain.
I’m pretty sure I’ll return the O+ and continue my holding pattern for VR. DCS optimization and gen 2 VR headset would probably pull me back in. There is interesting news on the 4k display front coming out from CES. Dell announced a 55" 120hz OLED 4k panel with adaptive sync coming out later this year. THAT would make one nice DCS display. Nvidia is also going to be adding support for freesync through a driver update later this month. If you’re in the market for a monitor/tv to play DCS on then that will give you more options while being able to take advantage of adaptive sync tech.