Very Slow Response (if any) from Beyond ATC in VR

When I fly in 2D BATC is behaving very well. But as soon as I go VR with
my Pimax Crystal Light things get bad. On nearly all attempts at a new flight with MSFS 2020, BATC will respond with voice and work perfectly in 2D with my Acer display. When I turn on my Pimax HMD BATC shows up nicely in the drop-down-menu’s FSDesktop window - but when I click on anything in the BATC window either nothing happens, it responds correctly every time, it responds after several minutes or it does not respond at all. Since buying both BATC and FSDesktop 3 weeks ago, this has been happening with only one exception; that concerned a SimBrief generated flight plan from EGSH to EGUW and all the voice comms from BATC were perfect. Same flight plan, same hardware, same starting sequence for the apps used and same excellent response from BATC in 2D. But as soon as I go into VR the results from BATC are hardly ever acceptable.
Anyone else find this? Any ideas?

Jave you tried to switch BATC to a different 3D renderer?
I am not an expert, but maybe that will help?

By default BATC starts on DirectX. As MSFS is using DirectX as well and VR can be very demanding for the GPU maybe all DirectX channels are in use.

Maybe switching to OpenGL or Vulcan for BATC can help.
You have details how to do that in the release note.

Wined2310Tech Alpha Insider

8m

Jave you tried to switch BATC to a different 3D renderer?
I am not an expert, but maybe that will help?

By default BATC starts on DirectX. As MSFS is using DirectX as well and VR can be very demanding for the GPU maybe all DirectX channels are in use.

Maybe switching to OpenGL or Vulcan for BATC can help.
You have details how to do that in the release note.

Thanks, I’ll look into that
Brian

How do you switch from Direct X to the ones you say - is there a tutorial?

It is in the release notes. And you find it on theor discord.

You’d probably be better off asking BATC themselves about this. You can contact them via email or on their Discord.

Vulkan is the default and preferred version unless it causes problems starting BATC or instability.

To force the OpenGL or DirectX version, start BATC using the bat file for that version from your install directory.

For OpenGL run : BeyondATC_ForceOpenGL.bat
For DirectX 11 run : BeyondATC_ForceDirectX11.bat

Why are you using FSDesktop?
BATC now has it’s own VR dropdown which you can download from their Discord or website. Works perfectly.

Unfortunately, the VR Toolbar is missing essential features like the taxi map.
For full useability you need FSdesktop…

I manage quite well just calling up the Navigraph airport plan - although of course you do need to be a Navigraph subscriber…

Little Navmap (free) is also pretty good with airport layouts too, and it shows what the SIM can actually see from the scenery files.

I never could get FSDesktop to work properly.

I think the problem lies with FSDdesktop.
Try running without it and see…
Try the default vulkan build and then the DirectX and OpenGL to find out which one is better.

Oh. I am not running FSDesktop. I was just wxplaining why some users still rely on it.

I dont have the rwported issue either.

But I appreaciate your attempt to help.
Your answer might atill be valuable to others.

1 Like

Just a quick update folks - thanks for all your earlier comments.
I’ve tried lots of things with no success. The most promising was the BATC VR Toolbar that I didn’t know about; I’ve now got that now and it works fine in 2D - but not in VR. I’m going to have to look deeper exploring your ideas about rendering. (I haven’t got a clue what Vulkan is/does …)
Brian

I’d like to give this a try but don’t know how to try the default Vulkan build or choose DirectX or OpenGL. Do I do this in FSDesktop somewhere?
Brian

Suggest you go to the BATC Discord Channel. Loads of help and info there. The “Vulkan” thing is a way to make BATC use a slightly different version of the programme to help with different PC setups and has helped a number of peeps having problems. Done with a batch file when starting BATC - look in the programme folder on your PC, there are two alternatives to try.

Hi Folks,

I’m still pursuing suggestions but haven’t yet sorted things out.

Can I suggest a change of tack? Instead of looking for solutions to the problem why don’t we consider something I mention in my original post - “this has been happening with only one exception; that concerned a SimBrief generated flight plan from EGSH to EGUW and all the voice comms from BATC were perfect.”
Yes everything worked perfectly with BATC in VR. Why, on only that one occasion, did all work in VR?
Brian

Isn’t that answered here?

Yes, that’s just the stability the alternate BATC startup was introduced to sort out. Have you tried it yet?

Terrylawdinn

CabriG28724

16h

Yes, that’s just the stability the alternate BATC startup was introduced to sort out. Have you tried it yet? Terrylawdinn

CabriG28724

16h

Yes, that’s just the stability the alternate BATC startup was introduced to sort out. Have you tried it yet?

No Terry. I wanted to check something first …

Thanks everone for your comments.This is how I understand things now - MSFS displays the flight in the Pimax using DirectX 11 rendering. There are 2 ways of showing BATC in the Pimax during flight. One is the recently introduced BATC VR panel which by default uses DirectX 11 rendering.
The other way is with FSDesktop; this approach gives access to BATC along with other Desktop apps on the MSFS drop-down menu. FSDesktop uses by default Vulkan rendering.

If my summary is correct, what would you do next? And how exactly would you do it?
By the way I haven’t mentioned yet what sort of setup I’ve got.
Windows 11 Home,
i9-13900k 3.00GHz CPU
31.7GB usable RAM
Acer flat screen and Pimax Crystal Light HMD displays connected to the NVIDIA GeForce RTX 4080.

It might seem a lot to ask but although the strategy is outlined in your earlier comments, exactly how to make things happen and in what sequence is still not clear to me (I’m not very good with the things you clearly understand. And I’m also not good or patitient enough with Discord).

BeardyBrun

CabriG28724

2d

Isn’t that answered here?

and

Terrylawdinn

CabriG28724

2d

Yes, that’s just the stability the alternate BATC startup was introduced to sort out. Have you tried it yet?

MY REPLY

Have I tried it yet? Yes, just did. I ran each of the .bat files with the aircraft “Ready to fly” at EGSH using the earlier OFP produced and Generated in SimBrief. On each occasion I stayed on the ground and just asked BATC for a weather check then radio check - first on the 2D display then with the Pimax HMD. When in 2D BATC worked perfectly. But when using the Pimax HMD and opening the BATC VR panel from the drop-down menu the problem still exists - the Radio check and Wind check icons flashed when selected but BATC didn’t respond with voice like it does in 2D. And as soon as I switched back from VR to 2D the request and response were spoken by BATC. So neither OpenGL nor DirectX11 improved things in VR.
Is my PC the root cause of the problem?