virtual-reality

[zinc flare]

Hi there! I'm setting up custom VR hands on Oculus and I'm having some issues. I have the right hand skeletal mesh and I need to implement the left one, so they would share the mechanics. I can't just scale the skeleton by -1 bc while it looks okay on the surface, the left hand's behaviour in the project is chaotic and wrong. Would anyone have any suggestions and/or articles to check? Thank you!

[tired tree]

@zinc flare you can scale it if you account for the scale with everything you do, its a bit of a hassle

though with simulation there is an engine bug yet unfixed to do with inversely scaled skeletal meshes

[zinc flare]

Yeah, we've been rolling with the scaled version, but its behaviour is wrong and not acceptable, unfortunately

[tired tree]

regarding what exactly?

attachment?

I had hands seperated for my users for a long time but that ended up being too much of a hassle for them so took the annoying task of fixing them scaled.

it is entirely doable

but a little roundabout

otherwise to keep things streamlined you are going to end up needing to mirror animations to the other hand

[zinc flare]

Sorry for the delay
Yeah, the attachment

[tired tree]

@zinc flare really easy workaround for that is to have a proxy component that attaches instead and the hand can stay attached to that proxy. If you were getting times when the hand would shift position as the object rotated it is because of a bad transform calculation that the engine performs when updating inversely scaled children. This works around it, I have a couple of bug reports submitted for these but they aren't merged yet.

if you want to use seperated hands, its not difficult to do, can share the same base class, same everything, you just have to figure out how you want to handle animation / poses with them

If your project has source I have an opensource hand socket component that will auto mirror transform and animations to the other hand (for full body meshes or seperated hands) and even lets you live pose on the object. You could rip the class out and incorporate or reference it @zinc flare

[zinc flare]

Would you be so kind and share the link?

[tired tree]

@zinc flare i'll pm it to you as its a few sorce files on github and tutorial page on ym documentation website

[foggy brook]

can anyone give tips on the best way to set up through blueprints:

1. turning raytracing on if on desktop and RTX card detected
2. off if no RTX card detected OR in a VR HMD ?

would r.raytracing.ForceAllRayTracingEffects 0 be sufficient for 'disabling' raytracing or could that still crash VR ?

[stable sedge]

Hi am newer to unreal development esp to AR but I would like to develop a game in unreal, since I am not heavy based in programming more in design the same goes for my coworker, i wanted to ask you if there is a good guide for the whole setup in the beginning, or recommendation on what i should keep in mind from the beginning.... What Unreal Version with which AR-Core (SDK, NDK) version to use e.t.c. what to consider for cross plattform compatiblity... is it even compatible....

i hope the questions aren't too nooby and apologies in forward if I oversaw any FAQ or Quickstart Guide...

[rancid bolt]

Anyone know where I could find a ready-made VR unreal game WITH the scene (not just the .exe)? I want to practice sound integration

[foggy brook]

The new VR Template in 4.27

[distant nest]

@quaint mango Did you resolve the controller offset issue? I notice that in a packaged deployment for Quest and when using Link in PIE that the controllers have an incorrect offset with OpenXR.

I thought OpenXR was going to let me get rid of all these per-device shenannagins.

[quaint mango]

Nope, I think it's an OpenXR issue. Controller poses are a mess, since it depends on both the controller and runtime. A bunch of people trying out OpenXR with Unity are having the same issue (search for "offset"): https://forum.unity.com/threads/unity-support-for-openxr-in-preview.1023613/page-8. I'm just ignoring it for now. Hopefully the folks at Kronos will find a solution.

[distant nest]

Yeah I've noticed that the default transform of the motion controller component is completely different in 4.27. Forward vector has pitch rotated by 65-ish degrees

[hallow knoll]

Did you use the new controller models that we shipped in 4.27? You need controller models with a model origin that's designed for the OpenXR "GripPosition/Rotation". If you enable "Device Visualization" on the Motion Controller component it'll automatically use models for OpenXR

[distant nest]

Yeah, I have it set to OpenXR

The OpenXR versions are offset in X (local forward) and rotation is off

I only have a Quest 1 to test with here, but it is definitely wrong when set to OpenXR

[hallow knoll]

Quest 2 and Vive are, that's known and logged. But we're talking ~1cm here, not 65° like you reported

[distant nest]

The 65 degrees mentioned is when using the non-OpenXR, the old models from 4.26

With the OpenXR models, it's more like 5 degrees

[hallow knoll]

That's expected since they were designed for Oculus SDK which had a different "origin"

Yes, the Quest 2 models as well as Vive controllers are slightly offset. The Vendors haven't provided new updated meshes and the WebXR library was the closest thing we could put together. It was either that, or no controllers 🙂

Hopefully we'll have the render model OpenXR extension soon and then we don't need to reference any models at all

This was an intermediate solution until that extension becomes available (however always good to have a backup until all of the runtimes return render models)

[distant nest]

Understood, I poked around and don't see any offset options defined anywhere, so the interim solution is just literally adding a local transform every frame

per-device

[hallow knoll]

You can export, move origin, and reimport - that's what I'm doing for the next update

[distant nest]

true true, first I need to chimp the transforms though

[hallow knoll]

If you get to that before I do please do let me know what a good offset is 😄

[distant nest]

I'll let you know for Quest 1 shortly

[distant nest]

So in UE4 coordinates, left Quest 1 controller needs to be pitched -17 degrees and offset (3, 0, -2) in local space. Another issue I discovered is that the right_OculusTouch_v2Controller included in the OpenXR content folder is actually the left controller.

[dawn lark]

is there PLATFORM_xxx macro for VR such like oculus quest2 ? use GEngine->XRSystem->GetHMDDevice()->IsHMDEnabled is not that convinient as macro because GEngine cannot use in constructer

[elfin stirrup]

Is there a way to do the same thing?https://youtu.be/wBVmYkLJuok

[north tapir]

My thumbstick up, down, left and right events for Oculus Quest is not working on 4.27. Is this a known issue? (Only with OpenXR)

[neon geyser]

@hallow knoll any news about the VR preview issue?

[sage gulch]

use the oculus xr plugin as well maybe

can UE4 do 120fps over Link to Quest2? I'm topping out at 90fps

[hallow knoll]

We're working on updating it but I can't say when that'll go out - I'll update this thread when the updated plugin is on Main and can be cherry picked

[hallow knoll]

You mean for Play as Client? I've logged it and let's hope it gets fixed for 4.27.1 👍

[hallow knoll]

It would be great to see a demo of good sound integration in the VR Template. There's plenty of interactions that you can add it to, and the Google Resonance plugin as the HRTF solution is already enabled

[loud mountain]

Hey, I accidentally screwed up my Android SDK, and now I can't build for the Oculus Quest 2.

As far as I can tell, I am correctly pointing to the android SDK, NDK, and JRE folders

However, building returns an error "Unable to find a valid SDK for Android. Must be between r21a and r23a"

[chilly ocean]

Bump. Please see my message below yours. I never got a full answer on Quest support past 4.25 and what has changed for optimization purposes then

[hallow knoll]

I can't answer when I don't know 🙂 We've moved to Vulkan as the standard, and Oculus has done numerous updates, but what that means in numbers I can't tell you

[unborn swift]

Is there a recommended source that describes optimization steps for Oculus Quest?

[distant nest]

They're 100% broken in 4.27. None of the discrete thumbstick events fire in OpenXR.

[north tapir]

Can confirm this happens in 4.26 too for OpenXR. OculusVR and SteamVR works fine

There was a weird prerequisite for 2D axis inputs in StemaVR. Their input mapping had to end with _X and _Y to work. Anybody knows if its the case for OpenXR too?

[zenith ingot]

Anyone know if I need to animate at 90 fps in maya for a VR project?

or will 30 fps work as well?

[distant nest]

In UE4 they flag these as EKeyFlags::ButtonAxis // Analog 1D axis emulating a digital button press. E.g. Gamepad right stick up. The gamepad equivalents work fine.

[sage gulch]

use the controller XR plugins

you can't even see the G2 inputs unless you enable the HP XR plugin and restart.. fortunately they don't get wiped if you disable the plugin for other builds

[silent cliff]

Hello, 3D Artist here that is super new to Unreal. I'm performing just a test with Virtual Reality in Unreal and have two questions:

1. How can I simulate playing the game in VR without a headset on? Really all I need is to look through the eyes of the camera to see the left and right eye view as well as a combined view.

2. How can I make the entirety of a player's view with the headset on an image plane (more specifically, so that it can be an animated JPEG sequence). In the end goal I want to play a pre-rendered 3D video as a sort of cutscene (yes, I know about motion sickness and camera movement) and want to either just play one rendered video file in a player's eyes or have a left and right eye render separately to create some depth.

[summer geode]

use this launch command -game -emulatestereo -res=2160x1200

[tribal lintel]

Do the menu buttons in 4.27 work for the index? I cant get the menu buttons to work, and even when I set the hand menu to trigger it wont show anywhere

[tribal lintel]

Suddenly my 4.26 will not work on any projects. The action manifest wont generate and I can't open the bindings dashboard. 4.27 works, SteamVRHome works, where do I start getting 4.26 to work again? I'm currently trying to verify my installation

[shut ermine]

Dumb question, but... are there any default VR hands in UE? When I made the VR template I kind of expected some hands, probably in the style of the white robot in the 3rd person template, but, I don't see anything like that in the template.

[iron pine]

VR hands are included in 4.16-4.26

[shut ermine]

Ah. I have tried 5.0 and 4.27. Do you think I'd be able to download the 4.26 editor, make a VR template project, then migrate the hands to my 4.27 project?

[iron pine]

@shut ermine Im not 100% sure I guess give it a try but if it doesn't work you can just export the hand mesh from a 4.26 project and then just re import it in a 4.27 or ue5 project

[shut ermine]

The hand mesh is the part I care about the least 🙂 Mostly I wanted to snag whatever is in there re: positioning the hands where the motion controllers are (e.g. I assume they are oriented correctly regardless of whether somebody has a vice or index or oculus. etc..) and secondarily the logic for doing different gestures, etc..Anyway, I'll give it a shot; thanks.

[stable sedge]

Hi am newer to unreal development esp to AR but I would like to develop a game in unreal, since I am not heavy based in programming more in design the same goes for my coworker, i wanted to ask you if there is a good guide for the whole setup in the beginning, or recommendation on what i should keep in mind from the beginning.... What Unreal Version with which AR-Core (SDK, NDK) version to use e.t.c. what to consider for cross plattform compatiblity... is it even compatible....

i hope the questions aren't too nooby and apologies in forward if I oversaw any FAQ or Quickstart Guide...

[steady shoal]

I need to tilt the camera(s) x amount of degrees for a certain period of time in VR. Is that possible? Can`t seem to access the right data anywhere.

[steady shoal]

I ended up tilting the entire pawn instead. Seemed to do the job!

[trail shale]

I'm having the most baffling bug with 3D widget interaction and collision - I've discovered an actor that contains volumes and they seem to be blocking the laser pointer from doing widget interaction - everything else works - and if I remove the actor, the widget interaction from the laser pointer motion controller works fine -

I can even make the volumes visible and move the controller in and out of the volume and see how it breaks the widget interaction - this is extremely frustrating

The linetrace that my laser pointer uses takes in an actors to ignore - I've confirmed that I have correctly added the Offending Actor to that list - but I'm not sure if I need to do something about "components" to ignore, or if ignore actor will ignore everything on that actor (these are volumes that exists but are resized via the construction script - but they are still components)

You can see that the laser hit is returning the actual Laptop Actor, but it's not hitting the widget interaction -

but if I lower this volume , the widget interaction works again -

when I set the box collision to ignore trace/camera, it works too - is UI widget interaction collision handled on those?

[distant nest]

Why don't you set your widget interaction components to use a unique trace channel that only your screens have? The default is to trace visibility channel.

[trail shale]

I only just realized that - I suppose I could but I'm trying to understand what ignoring the trace channel does, in terms of my collision boxes

[foggy brook]

has anyone had a multiplayer app that worked fine sideloaded but no longer worked in multiplayer when downloaded through App Lab ?

[sage gulch]

turned on Virtual Textures. How much loathing shall ensue?

[lucid glade]

Hey Guys.
I am trying to run the ARTemplate in 4.26.2 with a google pixel 5 with android 11. I am able to launch the app on the phone but when the template calls start ar session, the session never seems to start and I get a black screen
anyone get something similar any ideas?

I get this error code in the adb log
D/UE4 : [2021.08.27-17.31.22:730][ 48]LogGoogleARCoreAPI: Error: ArSession_create returns with error: -2

Trying 4.27 I also can't seem to initialize arcore.

If I print out the status of my session I get the following:
ARCore Status: FatalError
Addtional Info: Failed to create ARCore session with error status: -2

If anyone can help with help with this I can pay. thanks

[trail shale]

what does ARCore session with error status: -2 google show you, what type of error is -2?

@lucid glade

[lucid glade]

"An internal error occured that the application should not attempt to recover from" is the comment in EGoogleARCoreAPIStatus

I get the same error in 4.27 after calling "Begin Scan" in the template

what's weird is that it did work on the Pixel at some point

I did a factory reset to the phone to see if it would fix it, no dice

[hoary dagger]

Hi guys
I'm noticing that the fps in the unreal vr template are 72 from the start.
i am using an oculus quest 2 with the link cable.
aren't they a little few?
I also created the executable to see if it wasn't the editor's fault, but nothing has changed.
do you know if there are any solutions, or if that's okay ?!

[odd garnet]

Heyya, why does "deproject mouse to world" work in 2D but not in VR?

I'm getting a HUGE offset in VR even tho my mouse position reads 0,0

it's slightly centered and cuttoff non uniformly on the bottom and sides

[distant nest]

Anyone else tried out the new OpenXR loading screen functionality in 4.27? I'm getting vulkan crashes when using it, looks like due to a null texture.

[sage gulch]

@hoary dagger set fps in oculus

[sturdy coral]

@odd garnet there are two eyes and also VR overrides the projection matrix in a way it probably isn't aware of

what is your use case, someone clicking something in game world through the mirror window while the user plays in VR, or someone using the mouse while in VR?

[odd garnet]

yes to both

If you've played DCS, similar to their cursor

[twin elm]

Hey all!
does anyone know how to fix the AR Blank Screen problem,
when I use [add runtime candidate image] to the AR config file,
I am getting Blank Screen,
if anyone knows how to solve this, please let me know.
any help, Tutorial, Reference, Documentation much appreciate.
Thanks in advance for your help, time and efforts.

[steep jasper]

hey devs,
does any one ever got an issue where begin overlap and end overlap are executing at once?
like i am adding some guns to vr project with custom hands, and whenever i am gripping the barrel of the gun then there is a begin overlap node i getting called but the problem is at the same time end overlap is all getting called even if there is not end overlap and this issue is breaking my mechanics ...
any solution ?

[tribal lintel]

I just went through this earlier. In my case, I am tracing from the motion controller inside my pawn, so I needed to set Trace Channel from 3D widget, to pawn

[hoary dagger]

hi and thanks!
At this point, however, I have a big doubt: I have always heard that if a vr experience goes less than 90 frames per second, it causes motion sickness.
I have never suffered from motion sickness so I don't know ..
but if the vr template, without anything else goes to 72 fps, how can it be done?
do I have to care?

in the device preferences I can set the refresh rate, not the frames per second.
surely they will be connected but even putting at 120 hz the fps do not increase and the device heats up more ... it does not seem the solution ..

[unborn swift]

Oculus Quest defaults to 72 fps

[hoary dagger]

ok, do you know if there is a way to have 90fps?

or I don't need to care?!

[unborn swift]

There is a way to have 90 fps

You can set it using the oculus api somehow

Dont remember the excat call

But honestly

72 is fine in most cases

All major games use 72

Its difficult to push the FPS to a 90 anyway unless you dial back on visual fidelity and optimize a lot

Set Display Frequency is the name of the blueprint node in case you wonder

Quest 2 supports 60, 72 and 90 hz

There is also an experimental 120hz but you have to enbale that in your device settings

[hoary dagger]

thanks a lot! I did it ..
just set the refresh rate to 120hz in the graphics settings of the device in the oculus application on the pc.
unfortunately at 120 hz it seems to me that airlink does not work, but using the link cable I had no problems

[tired tree]

@odd garnet because the viewport is zone doesn't follow the split rendering

[trail shale]

THANK YOU

[dreamy orbit]

I am very new to UE and am trying to setup a test for a 'ride' experinece in VR. I have loaded a basic VR tamplate and then created a super simple box that follows a spline. I want to put the VR player 'ON' the box so that your headset moves with the box. Is there any easy way to just make the VR player HMD a child of the box?

[deep quiver]

Needing help. My HP Reverb G2 controllers will not work with the VR template in UE5. I have enabled the plugins, mapped the axis and buttons on the controllers but still when running the template there is no interaction. Just can wave them around but that is it

[elder token]

Hello! I have a problem. I'm using the VRExpansion plugin to ease VR development. When I move my character my gripped item location is messed up. I made a video about it.

https://streamable.com/0jt9x8

I'm using this blueprint to move

Maybe somebody has an idea on how to start debugging this? I already tried updating the gripped objects location to the VRRootReference location every tick but that is not working.

[trail shale]

What's the trick to making this not occlude as it comes closer - I need to have it take up the whole screen, but even if I scale it, it will be culled as it comes closer? any ideas?

[sonic lake]

For such a use case you want your box to be a pawn and have the player possess it. Doesn’t mean the player will be controlling it, may just be carried along, but the camera/HMD will follow automatically since it is part of it.

[tribal lintel]

Project Settings -> General Settings, there is a Near Clip Plane that you can change, previous UEs had bugs when settings this to 0, don't set it to 0, set it to 0.01 or something

[dreamy orbit]

Thanks so much @sonic lake I made my box a Pawn and attached a camera. (Super simple, put a box in the Viewport as well as a camera.) I am a beginner, so this might be out of the scope of a Discord chat, but how would one go about having the player posses the CartPawn I just created?

[sonic lake]

There is an option inside the pawn settings called Autopossess. Set it to Player 0.

Then Play in VR, you should be now seeing the world through the camera you set inside your cube pawn.

[trail shale]

Thanks for the tip - I think you are right btw - it seemed to still clip (that or I need to make my material two sided

getting there - need to make it a bit tighter and shorten the clip but it's coming along at least

wish I could turn off the shakiness somehow

looks like the person is afraid to put on the headset

[dreamy orbit]

That worked! Thanks so much. It's exactly what I was trying to achieve. Really appreciate the assistance.

[trail shale]

@sonic lake any idea how to stop steam VR from always muting the mic when I restart computer or steam VR? (i need to record audio and can't figure out a way to turn it on from inside the editor)

[sonic lake]

I tend to stay away from SteamVR as much as possible. I don’t know what may cause that issue. I googled it and it seems to be happening to others as well. Someone recommended uninstalling and installing again OpenVR Advanced Settings.

[deep quiver]

with the template, I have GrabComponent that will grab the object and orient it properly. I want to modify it to have 2 "Grabcomponents" for a two hand hold

when I do this it releases the other grab component. Any way to make it held in both places at once?

[reef willow]

how can i migrate a level and all assets related to that level from the ux tools examples plugin into an unreal project and replace all references with ux tools plugin?

[dreamy orbit]

@sonic lake Thanks again for your help. I have my camera moving along with my Spline.

My issue now is player input. What I am trying to achieve is keeping the same interactivity that the VR Template provides (picking up the guns, interacting with the cubes, etc) but while in motion on my spline.

I tried setting AUTO RECEIVE INPUT to player 0 in the hopes that it would give back control.

Any thoughts?

[sage gulch]

@trail shale abuse a camera spring

[sonic lake]

VR interaction doesn’t work out of the box like that. There is quite some code involved in hand movements, picking up objects and so on. Have a look at the pawn setup within the standard VR template, that is a good starting point to learn about it.

Once you understand it a bit more, you can start to copy over some of the functionality to your pawn.

[dreamy orbit]

Got it. I’ll keep at it. Thanks again for your help @sonic lake

[sonic lake]

You can also check the many internet tutorials explaining how to set up a VR project from scratch.

[summer cloud]

Hi there : ) Just wondering is anyone using OpenXR on 4.27 for VR projects and if you think it's good to start a new project on 4.27 for it? I'm about to start a new VR project ideally working with Oculus Rift S, Quest and HTC Vive (sorry I know it's a bit ambitious but it's what our team would prefer), but I'm not sure if I should start on 4.26, or 4.27 with OpenXR. May I ask if anyone has any recommendation on best practices of building for multiple platforms? Thank you!

[sturdy timber]

Won't help you that much but just started the VR Template on 4.27 to check it out, and unreal crashed 2mn laters while compiling shaders (I did not do anything expect opening the plugins tab).
You could also check the issue tracker and see if some broken stuff is better "solved" in one version or another

[summer cloud]

Ouch, sorry to hear it crashed...

Thanks Lnaej! I'll check out the issue tracker : )

[sturdy timber]

theoretically 4.27 should be better for targeting multiple hardware, but as each new version, expect stability problems and as it is just out, we don't have a lot of feedback about it (and everyone is checking out unreal 5 now haha)

[sturdy timber]

haha np, it was just to give a feedback on stability, although it does not mean much

(aaaand another crash)

[summer cloud]

oh nooo

[sturdy timber]

from D3D11, I have an old 970GTX so maybe it's just that. Althought it worked fine on previous versions

[summer cloud]

Thanks Lnaej! I should have checked out new VR template before I asked haha, gonna try it out now : )

[sturdy timber]

no problem, good luck 🙂

[summer cloud]

Thanks! : D

[dawn lark]

what FPS is best for VR, the higher the better? or 20-30 fps? or 50-60 fps?

[modest kestrel]

Every platform has their minimun (for publishing) and max (set by the hardware screen refresh rate limit), Quest is 72fps min and 120max, HTC vive and Oculus Rift CV1 have a max of 90hz refresh rate. Rift S has a max of 80hz. Valve index has a max of 120hz with a 144hz option

Generally speaking, anything below 60fps would be uncomfortable for the player and could cause motion sickness.

[dawn lark]

ok, Thanks. That's quite higher than 20-30 on PC

Quest2 is also 72 minFPS?

is there any good reference show that which tech of rendering is comsuming on Quest2 and better not use

all the Postprocess is better not to use in VR(Oculus Quest 2)? TAA, MotionBlur, Bloom, Godray, etc.

[modest kestrel]

Yes, for quest 2 the minimum is 72fps as well

[modest kestrel]

This is a little outdated, but is a good starting point:

https://docs.unrealengine.com/4.26/en-US/SharingAndReleasing/XRDevelopment/VR#:~:text=Guides and References-,Virtual reality (VR) refers to an interactive experience where the,apps using the Unreal Engine.

[dawn lark]

ok, Thanks. is there default HUD which can dynamically change the settings of Rendering Tech in game? so it's able to check each tech in game dynamically

[modest kestrel]

That I wouldn't know 🙂

[dawn lark]

ok, thanks

[vast arrow]

Hello! When launching the new VR template in 4.27, my Oculus Quest 2 with Live Link gets proper controller meshes and movement, but buttons are unresponsive. Any idea what I haven't enabled? I deleted the Player Start and dragged in the VR Pawn instead, set it to posess player 0.

Also added "auto receive input" to "player 0" in the VRPawn

[rich canopy]

Does anyone know of good ways to do fade in and out on quest with openxr?

[polar valve]

After updating to 4.26 I can't open my game anymore on a Quest with v28. It just says "Device update in progress. This app requires the latest Oculus Software version." Anyone know a way to get around that other than updating the headset?

[sonic lake]

@vast arrow are you wearing the HMD or did you bypass the proximity sensor with the Oculus Debug Tool or Dev App?

[vast arrow]

Wearing it. It worked now. Not sure why, though. I set up the input bindings manually according to the VRPawn BP. Thanks for responding, though 🙂

[jade kettle]

More of a general VR exhibition, but does anyone have a method of matching Vive calibration between two set ups in the same space?

[rancid bolt]

Looking for someone to teach one or two private online classes in Unreal VR. Paid contract. DM if interested

[hallow knoll]

Yah just grab this file and copy it to the other machine: steam/config/chaperoneinfo.vrchap

[mighty carbon]

just fyi @hallow knoll

I don't know if it's Epic's issue or Oculus issue

it happened during setup

[mortal spire]

Struggling to fix this error wwhen trying to launch on the oculus,

error: cannot find symbol

powerManager.addThermalStatusListener(getMainExecutor(), new PowerManager.OnThermalStatusChangedListener() {
   symbol:   class OnThermalStatusChangedListener
   location: class PowerManager```
I've tried a few solutions on the web, nothing seems to work yet.
Any ideas what I need todo?

**EDIT:** upgrade android studio to Android 10 (API version 29)

[tribal lintel]

are we not supposed to be on steamVR beta for 4.27? with index im having the weirdest issue with I think OpenXR where its like trying to smooth the movement of my headset. in the blank template, or blank project with default pawn in vr preview. I have a video of the issue, and the same footage without the issue, but its very hard to see whats going on from the video. the only way to describe it is, I can look at my steamVR play area lines, and hold still, the lines are moving in the world when my headset is not, like a slight smooth perlin noise. restarting steamVR fixes this

should we be on nvidia studio or game drivers? i've always stayed on game since i've always had such good luck with it

[rich canopy]

@hallow knoll would you know of an equivalent method in openxr to do fade in? I was using set color scale and offset with oculus plugin library previously

[tribal lintel]

you probs shouldn't tag Victor, hes helping here on his own time, and one of the rules here is not to tag epic staff or anyone unless they are replying to you.
that said, have you tried the camera fade function in the player camera manager?

[rich canopy]

Oh okie sorry about that

Thanks I will try that

I rmbed that we didn’t use it cos start camera fade require use of Mobile HDR which is bad on quest

[sonic lake]

@rich canopythere is the old trick of enclosing the camera in a sphere with a dynamic material and change its transparency as needed.

[rich canopy]

Do we really have to go back to that hacky method haha

[jade kettle]

Thanks!

[sonic lake]

@rich canopyif nothing else works, this does 😉

[dawn lark]

what are the Performance-killer for VR(eg.OculusQuest2)? all postprocess, all screen-space? all works on the full-screen RenderTarget?
so,
SSAO, SSR, SSDO, etc…
Bloom, MotionBlur, ColorGrading, etc…

[dawn lark]

what tool do you use to Capture or Profile OculusQuest2? the renderDoc oculus provided not work...

[sonic lake]

@dawn lark a lot of your questions are covered by the official documentation: https://developer.oculus.com/documentation/unreal/

[dawn lark]

ok,thanks. i'm reading

[sonic lake]

https://developer.oculus.com/documentation/unreal/unreal-debug-android/

@dawn lark ^^^^

also this

[dawn lark]

ok, thanks. i've tried RenderDoc oculus provided for their unreal4.26 branch, but fail to CaptureFrame on OculusQuest2. i'll check if they provide new exe.

[real needle]

if I disable hmd mirroring is my game going to render faster?

[eager pine]

Anyone know why i cant change a tracker to a controller in steamvr?

Ive tried to manage the tracker to become held in hand

but its still recognized as a tracker in livelink

[tired tree]

@tribal lintel did you leave a BP open? 4.26+ leaving bps open tanked engine perf, but in 4.27 its causing noticable wobble and weirdness in headset as well

with openXR

[mighty carbon]

@hallow knoll Oculus said it's really not their issue since those files are being pulled from Epic's CDN, but I am guessing it's not critical ?

[mortal spire]

My game launched on the Oculus looks terrible, but on the preview port it looks completely different. Is there a way I can fix this?

[sturdy coral]

they've added dynamic foveation (change foveation amount based on perf):

https://github.com/epicgames/unrealengine/commit/3612fabdd174b9b000274cda76096e5b4f77abbf

[arctic saddle]

I'm on 4.26 and have tried everything to set the rotation of the player to face the correct way. For more like an auto teleport destination driving by a sequence. But for whatever reason, using control rotation didn't work, player pawn, player controller, player camera manager, etc set actor rotation and teleport ignores rotation.

[heavy bloom]

I'm very new to game dev, but Ive always wanted to make something like Boneworks. I really want to get the player movement out of the way so i can focus on other aspects. It seems like hexabody would be a good choice but i have 0 idea on how to do it. Does anybody have maybe a youtube video or a ue4 test project that I can look at?

[wary thunder]

:no_entry_sign: ☭Ulanneche☭#0300 was banned.

[urban ruin]

hi may i ask, how do ppl make a loading screen in vr?

[sturdy timber]

if you want a splash screen with a picture, stereo layers are the way to go I would say

[spare yew]

android 11

[vast arrow]

Hi. I'm using the Oculus Quest 2 in Live Link mode to VR Preview my stuff in UE4. It works for a while, but then the Live Link stuff becomes too taxing for my graphics card, and things start tearing. Disabling "Home" helped, but I still have to restart the whole thing in order to get a somewhat decent framerate. Any tips on this?

[rancid bolt]

Sup yall! Does anyone know what nodes I should add if I want media to play when I look at the plane for a certain time?

Current node graph :

My goal is to play video in VR when HMD points at it for more than a sec

[arctic saddle]

You'dd need a line trace event that targets the actor by name or tag or something and then use a timer by event.

Or trigger event works too

[rancid bolt]

Thank you for giving me a guideline

[dawn lark]

https://forums.unrealengine.com/t/what-are-the-performance-killer-for-vr-eg-oculusquest2-all-postprocess-all-screen-space/248143

[keen prawn]

in the old template i was able to use my rift w/o cameras and it would fall back on gyro i think, in 4.27 if the camera doesnt see my headset i get some weird 2d screen

[modest kestrel]

Following on this, similar thing happens with the rift cv1 controllers, if they are not being seen by the cameras, they snap back to player origin in the floor

[keen prawn]

yea i think controllers really need the camera tho

[modest kestrel]

They also have gyro, so it would be nice if they would stay at their last seen position and fall back to gyro instead of snaping to the floor

I think the weird 2d camera of the helmet might be the same thing

when the helmet is not seen anymore, maybe it's placing it at the player origin

[nimble edge]

My guess is this is an OpenXR thing?

[mighty carbon]

Having major issue with 4.27 and skeletal meshes - they don't render on Quest 2

what's even more weird, I have one skeletal mesh that uses master pose and that one renders fine

my project worked just fine on 4.26.2

also everything works in SM5 in PIE

@hallow knoll has anyone reported this for 4.27 and Quest 2 ?

btw, skeletal mesh has 71 bones, so it should work just fine on mobile

[hallow knoll]

The pistols in the VR Template are Skeletal, no issues there

[mighty carbon]

pistol has like what, 5 bones ?

[hallow knoll]

Yah I don't think there's support for 3dof Fallback

Oculus mightcould implement that in their extension

[sage gulch]

even inside out hmds can lose sight of the controllers tho.. from any manufacturer...

[hallow knoll]

I'm unable to find a mention of 3dof in the specification: https://www.khronos.org/registry/OpenXR/specs/1.0/html/xrspec.html

It's a good question though and I can see it being part of the standard

[mighty carbon]

I suspect it might have something to do with 26 joint limit per OpenXR specs, but that's for skel hand tracking.. Not sure if that somehow spilled over to any skeletal mesh.

I gotta compare Oculus fork vs Epic's launcher release and see which one works

[vast arrow]

Hello. Oculus Quest 2 headset spawns on floor after compiling (running in Oculus Link mode, from a win 64 exe). When VR previewing in editor the height above floor in the HMD is picked up correctly. I'm using the new VR stuff in 4.27. Player start marked by the PlayerStart capsule, and the map is running in VRGameMode. Motion controllers work, as do teleportation. I suppose I could put the capsule at a certain height, but it is of course preferable to get he actual height of the HMD. Any and all tips would be most welcome, I'm running out of things to try.

I migrated the project to a fresh one for packaging, and there's something I'm forgetting.... Player start is set to auto recieve input from player 0, what could it be?

[rocky condor]

the default project, with no edits, is loading you in the floor when you play to device?

[vast arrow]

Hey, thanks for reaching out. When packaging the VR Template project it also spawns the HMD on the ground.

[vast arrow]

Turns out I hadn't activated the correct plugin.

[dusky moon]

Hey guys, Is it possible to keep Ray tracing by default On but disable it on runtime ?!
For my VR project I want to use pathtracing (for screenshots) that needs raytracing enabled. and for my VR project I don't need raytracing but want to avoid switching back and forth all the time and re-compile all shaders.

[worthy quest]

r.RayTracing 0 Disables raytracing - not sure if it's a good idea though

[rugged river]

Hey guys, anyone using ARCore here?

I am using 4.26 and looks like it is impossible to make a app with it that can be published on the Google Play Store

Resuming the problem, looks like any Android 10+ doesn't have the ARCore compatibility when Targeting SDK 30... I changed the source code of the Unreal to use ARCore 1.19 already, but still can't make it work with an ABB on Google Play...

[uneven juniper]

Hello, I'm using UE 4.27 with a Oculus Quest 2. I'm on the OculusOpenXR plugin integration and would like to try to change the refresh rate of the HMD. I can find all functions used with the previous Oculus plugin but nothing with the OpenXR one. Does anyone tried this ?

[fiery crow]

Was wondering if anyone knows how to collect data after a user has played a game? Ok so context, I am working for a university creating a simulation using Quest 2 developing with unreal/blueprints. The people I am working with want to collect some data: how long the person is using the sim, how often they move there head, if they completed it, etc. Anyone know where to look for help on adding this to the simulation?

[radiant garden]

You have some very specific use cases that depend a lot on context. You'll need to figure out how to actually track the events of interest yourself, but once you have that part down you just need to write the data to a human readable format. If I were doing it, I would do "CSV". That stands for comma separated values. It's a format that is easily imported into spreadsheets. A quick google search found this question about CSVs. I didn't watch the whole video to see if there are any problems with this approach: https://answers.unrealengine.com/questions/973300/can-i-export-data-table-to-csv-file-using-blueprin.html

[rancid bolt]

Anyone know how to get NavMesh onto this surface without increasing overall AgentHeight?

[wintry crow]

I'm not a navmesh expert, so i may be way off, but I did a quick test and bumped up the Cell Size by 1 and it seems to help, at least with the default floor.

[rancid bolt]

Nope

Nothing

But thanks for trying tho

[wintry crow]

ah sorry, mine defaulted to 19 so i set it to 20

ill go now ❤️

[eager pine]

Anyone else had issues getting the pogo pins input into ue4? We seem to loose it frequently and its hard to debug what happends, then it suddenly works again

I do the setup, everything works, i restart steamvr and it stops getting input

And i get input on testing the controller

[modest gust]

why is running vr preview on oculus link so slow

[tribal lintel]

Yes I did, but I've also experienced this without leaving any BP editors open. Wobble and weirdness is exactly whats happening. Are you on nvidia game or studio drivers? do you have steam VR beta or standard? Im on nvidia game and steam beta

I've restarted unreal and steam vr and re opened previous open editors, and the issue was fixed with BP editors and other stuff open, its after running preview a few times. Haven't tested with standalone and package yet

[tired tree]

@tribal lintel my users have been reporting that its in editor only, and random things fix it for them. I had rendering issues before I forced the oculus runtime to be the OpenXR default (when testing with linked quest2) but also still had some weirdness with BPs open even after that

[sage gulch]

If you have routines on tick and that bp is open & fronted in editor it kills fps, same if epic launcher is running

[modest gust]

I have the same problem but nothing is fixing it

[dawn lark]

when should i change the Display Refresh Rates?

Oculus Quest: Set Display Refresh Rates: Unreal | Oculus Developers(https://developer.oculus.com/documentation/unreal/unreal-change-display-refresh-rate/)
default value is 72HZ, so it means the default MAX FPS is 72, right?
so if the higher FPS is wanted, is it able to change the Display Refresh Rates to 80, 90, 120?

[sage gulch]

you have to minimize those editor windows when you PIE

otherwise it's trying to draw the graph evaluations on tick and it bogs the gpu

and kill epic launcher via the process manager or whatever

[modest gust]

ok i will try that

[sage gulch]

good luck 🙂

[dawn lark]

the default MaxFPS of Quest2 is 72fps? is it able to enable the MaxFPS to a larger value than 72 ?

[lament sedge]

Quest2 has a 90fp max

[dawn lark]

do you know how to enable this in UE4.27.0? i just tried the SetDisplayFrequency in Blueprint, but the MAX fps is fixed to 72, no matter how big value i set to the DispalyFrequency

[dusky moon]

Guys is it safe to enable the Fixed foveated rendering for VR in 4.27 ?! any known issues ?!

[dawn lark]

ru afraid of crash?

[dusky moon]

exactly - or artifacts ?!

[dawn lark]

cannot give the answer until test

[dawn lark]

'stat gpu' shows nothing on Quest2...RenderDoc for Oculus's ProfilingMode not work...is there another to profile Quest2?

[coral swallow]

Anyone know a reason as to why rotation teleport was removed in the new VR Template?

[polar valve]

After updating to 4.26(Oculus version) I can't open my game anymore on a Quest with v28. It just says "Device update in progress. This app requires the latest Oculus Software version." I'm able to open it on v32

[sage gulch]

set q2 fps in driver

[valid pine]

Hello all. What would be the most efficient way to learn VR development for ue4

[lament sedge]

Unfortunately I don't sorry, we have only done a Quest2 game with Unity, about 4 months ago we updated a Quest1 game with the extra FPS mode for Quest2. I unfortunately don't have time right now to look into it.

[paper epoch]

enabling movable point lights is giving me a crash on quest 2. Any settings I am missing?

[dawn lark]

is it forbidden to use Translucency material in VR? hit perf very much? is there efficient way if want Translucent effect?

for Quest2, the count of Material is better NOT to lager than?

[stable sedge]

I'd be surprised if anyone answer, most here dont give a damn about new starters

[stable sedge]

Its generally my experience, if you go on asking programmers for help, its like some anti social ish in their brain preventing them from helping you , while when you ask in the blender community (artists) they more then happy to aid. Thus why i assume if unreal didnt have certain features it wouldve lost the battle with unity, due to lack on tutorials and the communitys willingness to make them or even to answer basic questions....

[stable sedge]

(Maybe i could provoke an answer for you) gL bro

[sonic lake]

@valid pine first you need to learn a bit of Unreal because how you do VR develpment is specific to each engine. There are good free resources at learn.unrealengine.com. Of course the standard documentation for the engine also contains some chapters about VR and how to set up a VR project.

Second you need to learn specifically about VR development. There are some tutorials on YouTube which you can lookup (e.g. getting started with Unreal VR). Some of them may look a bit outdated, but the basics are still the same. Feel free to have a look into my tutorials as well. Here the link to the playlist: https://www.youtube.com/playlist?list=PLdJTb2JHbl1AGqCh-OUxtArBm49NcNAWP

If you prefer to read, there are also some books. For example:

Last but not least, you can play with the standard VR template which ships with Unreal and that has been revamped recently. It contains some good example on how to handle some of the VR dynamics (e.g. locomotion, grabbing objects, ...)

You can also study the template, modify it and see what you achieve/learn through the process.

@stable sedgethat worked! 😉 Out of joke, I think there is plenty of people willing to share, but when the question is very generic it may take some time to come up with a comprehensive answer.

[warped mesa]

Hey 🙂 Is this the channel I go to when I have questions about VR and UE5?

TL;DR; is that vr mode won't launch for me on my quest 2 using oculus link. It just keeps showing the "Loading UnrealEditor" dialog in link

[rustic cargo]

Hi all, just released my app into the wild (on applabdb.com) - https://www.oculus.com/experiences/quest/4385310621483433/ - Made with Unreal of course. Happy to discuss or take feedback (don't be afraid to @ me!)

[valid pine]

@sonic lake thankyou I will look into it

@stable sedge what would you mean by provoke an answer. I appreciate your help

[urban ruin]

hey guys, is there a tutorial on how to change the hands mesh for vr?

[foggy brook]

Anyone know the simplest way to add smooth locomotion to the OpenXR VR Template in 4.27 / 5.0 ?

[modest kestrel]

I did it on my Gamejam VR submission in the 4.27 VR template, should be as simple as changing the mesh inside the VR Pawn, if you want a skeletal mesh that animates with your grip you should be able to add a skeletal mesh as a new component at attach it to the MotionControllera as well

[urban ruin]

strange my vr pawn only has camera n origin point. do we have to add them ourselves?

my engine ver is 4.26

[modest kestrel]

Mm, I haven't seen the old template in a while, maybe the hands are their own actors and are not inside the VR Pawn?

If so, then the mesh should be changed inside those actors

[urban ruin]

hmm, if i simply add component of the motion controllers will they work tho. since im rushing for deadline lol

[modest kestrel]

I'm not sure, but you could try and see if it works (hopefully it does)

[urban ruin]

hopefully

[urban ruin]

can somebody explains to me the matching problem, bcoz this is the first time i open this bp n it has this bug. how do i fix this

[sonic lake]

@urban ruinmore a question for #blueprint, but here you go. That On Component Hit event is specific to a component called Controller Mesh. If there is no such component in your hierarchy (check on the left) the event doesn't know how to trigger.

[urban ruin]

oh i see, thought this belongs in vr anyway thx marco

do i need to add it or juz leave it be?

bcoz i dun see it in my add component

[sonic lake]

@urban ruin if you don't have that component but still need to detect the hit, you need to use another component

Select the component you want to use in the hierarchy on the left, then under Details on the right scroll down to the bottom. You will see some green buttons to add events to the Event Graph. One of them is the OnComponent Hit.

Click on it and the event will appear, then replace the one above with the new one you just created and connect everything as shown above.

[twin elm]

hey!
I am developing an AR Experience and come across this webpage: https://medium.com/@joe.j.graf/a-preview-of-persistent-and-shared-ar-experiences-in-ue4-4-21-c47b3331a4b1
I need to see the project that Autoher is using, Author saying that he can't share the project, but it's available on the Perforce.
does anyone know how I can get access to this perforce directory or this project?
Thanks in advance for your help.

[dawn lark]

Translucent and Additive are all semi-transparent, and all should be forbiden in VR?

[worthy quest]

The author says that there's also no samples on github nor perforce but it has the underlying c++ support.

[twin elm]

Author Replayed to Tom Trailer on the First Comment(Last in the list)

Zak and myself had a series of biz trips that delayed their release. If you have perforce access, they are available there.

[worthy quest]

https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/ProgrammingWithCPP/DownloadingSourceCode/

You need to be an UE licensee to get perforce access

What is preventing you from recreating the project through the steps in that article?

[twin elm]

There are some steps missing from the article and Autrter had just posted a screenshot of variables names so it's hard to guess what type there are from their color.
some steps are missing like Object that is placing on the world, what that types of new variables and functions it has, it's just an overview from 10000 miles up.

[polar valve]

additive/modulate are preferred over translucent but you can use any in VR. Even on the Quest. Just need to be careful with performance.

[twin elm]

But How?

[polar valve]

Overdraw is the main variable, and the percentage of your screen that the materials take up

[worthy quest]

Contacting epic games and paying I'd imagine 🙂

[foggy brook]

Anyone know how to do a Position/Orientation reset using @hallow knoll 's OpenXR Template ? The 'Reset Orientation and Position' node doesn't seem to work with OpenXR

[formal ridge]

Hey folks, I started encountering an issue with the way my Axis mapping was done for Oculus Quest 2, for full information, I use Virtual Desktop > SteamVR > UE Editor

So basically I had it setup to directly use the Oculus Touch Thumbsticks for movement forward / right

Now that I've update my BP on my player character for Axis Mappings using MotionController Y/X etc. the player camera when the title starts slowly rotates to the floor upside down and stays there, there is also no input from the controllers, I'd like to ask for any suggestions for a solution? It's a really strange issue to run into at this stage of development, and a huge hindrance. :/

** 4.26

Additional Information I missed: I tested mapping the buttons for Axis movement such as Oculus Touch (R) B Press, A Press etc and they work to move so it's just thumbstick related

[modest kestrel]

Not sure what could be causing the issue, but something I noticed in the BP is that the first branch will only be true if the value is 0, so you could replace those <= and >= for a single =0 node, and if I'm not mistaken, even that could be deleted because the Nearly Equal node would already return true if you are at 0 or near 0 by a margin of 0.1 so the first branch would be unnecessary

[bronze raven]

any idea why point lights on 4.26 would make the app crash on Oculus Quest?

[dawn lark]

which is more efficient? combine all the logic of materials into 1 big material then use the instances of it? or directly use the many materials and its instance?

[dawn lark]

how to efficiently add Fog in VR? eg. Quest2

[paper epoch]

yes that is how it is. Our VR controller is based off it

[paper epoch]

https://www.artstation.com/blogs/lisavettas/1A1W/fake-volumetric-fog-tricks-for-ue4

I have tested the spherical one in quest. Just make sure to turn on full precision in the shaders

[urban ruin]

Hey guys, I have a problem. It seems like my VR Pawn's hands mesh are not centered in front of player.

[paper epoch]

which template are you using

[urban ruin]

VR template, exports into oculus quest.

[dawn lark]

Tanslucent UI also cost much and should forbid to use in VR?

what’s the preferred setting values for ‘Build’ lightmap for Quest2? Take test and the smaller resolution the better?

[paper epoch]

your hand is scaled negative for left for hand actor that could be one of the culprits if your hand pivots are messed up. I would recommend adjsting your skeletal mesh in the motion controller. Try it on rift with editor first tho.

[urban ruin]

haha i only have quest, plus i dunno if i should do this but i deleted player start. seems not that useful once u got motion controller on

[urban ruin]

u said scaled negative?? even tho i nvr touched it b4?

[paper epoch]

use oculus link to use your quest like a rift. Do you have a thunderbolt port?

[paper epoch]

it happens in code for the left hand. I made a child bp for left and right for more control. Are you using custom hands here?

[urban ruin]

yeah, boxing fists. no need animated, as long as they can click buttons

[neon geyser]

No one has issues when using "Play as client" with the VR preview?

It has been reported to the devs but I saw no one else complaining about it, so I start wondering if its not related to me only

[paper epoch]

yep you have to check the mesh placements. Try and get oculus link working so you can test more often first.

[urban ruin]

urgh, sad days of my life

[paper epoch]

ikr. I am a full time VR dev and I face bs like this daily and I cannot complain as they pay me too well for it

[urban ruin]

oh u're a professional dev

cool, im abt to graduate in this major n ready to eat dust ngl lol. no offense but vr is not for everyone lol

[paper epoch]

tbh it can pay much more for non gaming purposes on starting out at least. I am just 22 btw.

It is new tech for a lot and investment is pretty good.

[urban ruin]

23 here, trying to graduate. yes it's cool and high potential i gotta admit

[paper epoch]

yep benifit of doubt in my case as they expect us to give them new tech ideas which both a pro and con.

I would say have knowledge about the engine in general as smaller studios normally dont have a technical artist and there will be importing issue with assets once in a while. The standards for VR are pretty low and whats out there in the market is mostly crappy quality except few. I do prefer non vr gaming tho no tech limitations and all

[dawn lark]

how to add Fog is the most effient way in VR?

[paper epoch]

did you check out the link I sent you?

[dawn lark]

https://www.youtube.com/watch?v=DnfFbFjxI_M

this one?

Mobile -> Disable vertex fogging in mobile shaders, This option must be Unchecked in settings for VR?

[paper epoch]

this

[dawn lark]

ok, thanks

is this efficient than ExponentialHeightFog in VR?

[paper epoch]

yep the author legit says this is usable in VR kinda hacky way like how older games faked fog

Is depth testing for stereo layers still broken?

[formal ridge]

I’d suggest doing a plane > fog vector for maximum optimization

And for reduction of performance requirements don’t forget to get 360 angle screenshot of your background mesh/actors and apply high res screen shots

[daring igloo]

Hey guys!
I'm looking for a freelance VR dev to quote me for project. Please react to this message if you're interested and I'll DM you the details

[quaint mango]

Does anyone know how to get the Oculus Touch Thumbstick Up/Down/Left/Right keys to work in action mappings with OpenXR? Seems like only the Thumbstick X/Y axis works. I took a look at Unity's OpenXR input system as well, and it seems like it only supports axis mappings (Vector2) for the thumbstick. Does OpenXR require you to manually read the axis values and call the actions?

[ember pumice]

How did you guys implement dynamic capsule height?

I am changing the capsule height to match the HMD relative location height. This is somehow causing the HMD display to flicker.

void AVRCharacter::SetHMDCapsuleHeight()
{
    // Find the HMD height.
    float HalfDistance = VRCamera->GetRelativeLocation().Z * 0.5f;
    GetCapsuleComponent()->SetCapsuleHalfHeight(FMath::Min(HalfDistance, PlayerHeight*0.5f));

    // After the height update is done, fix the DeviceScene location as well.
    DeviceScene->SetRelativeLocation(FVector(DeviceScene->GetRelativeLocation().X, DeviceScene->GetRelativeLocation().Y, GetCapsuleComponent()->GetScaledCapsuleHalfHeight() * -1));
}```

[twin elm]

AR Development with Unreal Engine 4.27,
Tutorial 01 Getting Started With AR Development

https://youtu.be/LHciC-tzOWQ

[dawn lark]

how to show Vertex/Triangle Count in Quest2?

[ivory juniper]

Has anyone been able to hook into the quit app event for the Oculus Quest? I've tried the Game Mode Logout, Game Instance Shutdown, and PlayerState Pawnleaving game. They seem to fire fine in editor, but never in APK.

[twin elm]

Does anyone know the SaveARWorld node work for ARCore Android as well?
I am trying to use it in android, but I am getting OnFaild Pin Execution.
OR is there any way to check if it's valid for ARCore?

[paper epoch]

quit the app right? Just use Quit Game.

[wintry veldt]

Hello, does anyone know how to make mirror in VR android? (try to achieve like a mirror) Thankyou^^

[paper epoch]

try using scene capture 2d and place the plane to simulate lateral inversion. Keep a check on render resolution for performance (turn off all checkboxes in Rendering >VR for this to work ).

[wintry veldt]

Is it decreasing the quality if i turn off all that checkboxes?

[olive ferry]

Do someone know if there is any way to know when the headset had been removed from head ? Works perfect on Quest/RiftS but not on Vive HMD

[paper epoch]

might wanna check if vive sdk has anything in this aspect. Hmd worn state does seeem to give this tho is that what you are using?

[ivory juniper]

No, that quits the game by command. I’m talking about external sources closing the app (i.e oculus menu shutting down the app) and running some cleanup code when that happens

[paper epoch]

I have heard game instance has in shutdown for this. Never tried tho. Maybe ask the cpp guys for any other delegates

[idle osprey]

I'm in UE 4.27.0 (Epic Launcher). I've got the following defined: ```
ANDROID_HOME=/Users/corysia/Library/Android/sdk
NDKROOT=/Users/corysia/Library/Android/sdk/ndk/21.4.7075529
NDK_ROOT=/Users/corysia/Library/Android/sdk/ndk/21.4.7075529
JAVA_HOME=/Applications/Android Studio.app/Contents/jre/jdk/Contents/Home

I've a 4.26.4 project up on github at <http://github.com/Corysia/MiniVR> and I can import that to 4.27 and it it starts up fine on my Quest and Quest 2.

Today, I've spent most of the day trying to make a brand new from scratch C++ project like MiniVR in 4.27, and I cannot get past the three dots in the Quest or the Quest 2.  I've compared every setting I can think of.

Mobile HDR is off. Mobile Multiview is on.  Forward rendering is on. Antialiasing is set to MSAA.  MSAA is set to 4x.  Min and Max SDK are both 25.  SteamVR and Oculus VR are disabled.  OpenXR is enabled. KitKat fullscreen is on.  Quest and Quest 2 are added to Oculus devices.  Oculus Signatures are removed.  Instanced stereo is enabled.  I'm set for arm7 and ES3.1

If I make a blueprint project from the VR Template, it runs fine.  But I need a C++ project.  What am I doing wrong??

And this fails to make a working Quest build on a Mac and Windows -- I've tried both. Everything compiles, it just won't start.

[paper epoch]

try arm 64 and sdk at 23, try turning off instanced stereo. Is start in VR on?
Anything in device output log?

[idle osprey]

I don't see anything in the device logs that jump out at me as an obvious problem. .....it could be the arm64, now that you mention it. I'll try that next. Lowering to min23 didn't help. Just turned off instanced stereo and shaders are recompiling.

No, changing those settings hasn't helped. 😦 Still just 3 dots.

[valid pine]

hello all, new to vr and having an issue where my motion controller hands are not rendering in game. i created a player controller and a game mode

also transferred the default pawn class to the character class

could anyone advise

[paper epoch]

remember getting it on Thursday this week. Try re assigning the levels included in build? You must be getting a black screen after the dots right?

[paper epoch]

Are you sure it is spawning the VR pawn? try putting a debug or something to check

[idle osprey]

So the level is extremely simple. It's just a blank empty project. I saved it as Empty and set the project to open Empty as the default level, both as the game level and the editor level.

If I create a blueprint VR Template project, it works. But I need a C++ project, ultimately.

I don't think it's getting as far as the pawn. I'm not entirely sure how to tell as I'm launching on to the Quest, not doing a VR Preview.

I didn't used to run in to this in 4.24 or 4.25.

[paper epoch]

your android build settings?

might wanna put screenshots of the rendering settings and android settings

[idle osprey]

I've tried both arm7 and 64.

[paper epoch]

turn off atmospheric fog and any movable light sources. I remember getting crashes from it. Also arm64 worked better for us as the same build could run on quest 1 as well

[idle osprey]

Thanks, I'll give that a try tomorrow morning.

kinda fried now

But I just checked and those (fog and lights) are on in the VR Template, which works. 🤔

Ugh...yeah, ...going to fight with it more tomorrow. Night.

[paper epoch]

good luck dm if any issues

[hallow knoll]

If you add an empty C++ class to the VR Template project it’ll convert to a C++ project (Blueprints will stay the same)

[minor pagoda]

Oh really? So to make our project ready for dedicated servers, we don't have to rewrite all of our blueprints in C++? (Because I saw in the documentation that the project should be C++ to be able to run on dedicated servers)

[idle osprey]

I tried that and I'm unable to compile. Whenever I press the Compile button in Unreal, I just get Warning: RebindPackages not possible (no packages specified). I tried restarting the editor, but I don't see my sources in the editor, either.

[radiant garden]

I ran into this a lot on 4.27 during the game jam. I had to delete all my intermediate folders for each build or it wouldn't launch consistently after deploying to the Quest

MordenTral also told me yesterday that the Quest 2 needs min SDK of 29 due to some thermal readings it takes.

Also, swap your build from Armv7 to Arm64. Oculus requires it for submissions, so might as well test on it: https://developer.oculus.com/blog/quest-submission-policy-update-64-bit-by-default/

[valid pine]

@paper epoch absolutely certain because i have the functionality

the motion controllers still wont show up

do i have to set a mesh for the hands

[valid pine]

nvm i got it

but now im trying to implement hand tracking

https://www.bing.com/videos/search?q=hand+tracking+ue4&docid=608020300976780711&mid=552185085044295653E3552185085044295653E3&view=detail&FORM=VIRE

i followed this video and for some reason i did everything he said to do and its not working

could anyone please advise

[idle osprey]

If you scroll up, you can see a github repo I have for an app called MiniVR. There is a 4.26 branch on it builds and runs on a Quest and Quest 2. It'll import right in to 4.27, without changes, compile and run (after the pain of shaders, of course). For the life of me, I cannot recreate that project in 4.27 from scratch.

[paper epoch]

plus the same build is campatible on quest 1 and 2 remember testing it a few months ago

[quaint mango]

I also ran into this issue (stuck on 3 dots on Quest 2) trying to create a VR project from scratch with 4.27 and OpenXR. Tried to match the exact settings with the VR template, but it still wouldn't work. I noticed that when opening the VR template project, it'll startup my PC VR headset. But with the project created from scratch, it doesn't. So the issue might be the OpenXR plugin isn't properly launching. I made sure that only the OpenXR plugin is enabled and also disabled SteamVR and OculusVR, but maybe they're still enabled somehow? I just ended up using the VR template and deleting all of the stuff I didn't need.

[hallow knoll]

OculusOpenXR plugin is required to run OpenXR on Quest (it’s enabled by default in the VR Template)

[quaint mango]

I also enabled that.

[idle osprey]

Actually, it isn't. At least not in 4.26.2. I've run with purely OpenXR, built on OSX and then deployed to the Quest and Quest 2.

[quaint mango]

Weird, it gets stuck on the 3 dots when deploying the 4.27 VR template to the Quest 2 when the OculusOpenXR plugin isn't enabled for me.

[idle osprey]

I had to go this route because Epic removed Mac VR support n 4.26, breaking the VR Template for SteamVR on the Mac by removing the Chaperone bounds, etc. With Mystfit's help, I was able to get a blank BP or C++ project working on a Quest using a Mac to build from.

And the Oculus VR libs never compiled on the Mac anyway.

[idle osprey]

I can't get a non BP-based, non VR Template-based version to work on either the Quest or the Quest 2 in 4.27. I can import my 4.26 project in to 4.27 and it works fine. Which I just can't figure out.

[quaint mango]

Yeah, I'm pretty stumped as well. Any blank project I start in 4.27 gets stuck on the 3 dots when deploying to Quest 2. Spent a day on it, and just decided to use the VR template instead.

[idle osprey]

A BP-based project that I add C++ classes to won't work for me. Unless I'm missing something, by going that route, I lose access to the options to wrap my C++ classes in BPs for level designers, etc. The C++ classes aren't visible like they are in a project you start as a C++ class. Maybe someone knows a way around that -- but I haven't figured it out.

[paper epoch]

is it possible to use movable point lights in vr (no shadows). I am getting crashes in builds

[violet musk]

Somebody know the directory of where to put additional media files that are too big for packaging? On a Quest 2 I have them in Android\data\com.example.example\files\UE4Game\MyProject\MyProject\Content\Movies and that doesn't work.

[sonic lake]

@violet musk https://answers.unrealengine.com/questions/1020326/view.html

[violet musk]

I have googled for almost a day and that is one of the things I also saw, unfortunately that's not it.
The videos do play, it's an old project from 4.23 (now 4.27). But only if I package them. Meaning, packaging some videos for testing works. But once I exclude the movies and copy them separately it doesn't.

I have 7 GB of videos that need to be included.

Alternatively, what would be the correct path for Open URL? Experimenting with that right now.

[worthy quest]

Hi guys, can anyone recommend some tech to track an estimated area of 100mx50m with any accuracy of roughly 1m ? I would only need to trace the path of a user through that space over time.

[sonic lake]

@violet musk pretty sure it can be done, but I need to check on my dev machine. Did you get any hint from the log file? Any folder it is trying to access but doesn't work?

[ashen vector]

Any suggestions on how to improve antialiasing on the oculus quest 2?

I am using msaa x4 (x8 is not working, it shows a black screen) but on some edges with specular or reflective surfaces the edges looks pretty bad, also far away edges jumps a lot and doesn't look crisp enough.

I am doing an architectural experience, so quality should be as good as positible, but I can't find a solution to that. Hope someone can give advice.

Thank you.

[dreamy ivy]

Does anyone here know where the Valve Index / other controller meshes are located within the open xr 4.27 template. I need to add sockets to the meshes but cant find them anywhere.

Specifically the models loaded in from the motion controller components.

Never mind, found them after some digging. But they dont show up if you try searching for them. you haft to go through the files.

[violet musk]

I'm not properly set up right now. The whole issue started with different UE and Android SDK versions, ugh :/
Uploading the video on a webserver and playing it from there worked. But I still can't find the right path. Tried file:///scdcard/ , file:///storage/emulated/0 and file:///mnt/sdcard/. The first one to be confirmed working on quest not working for me. I've tried to find the absolute path with all kinds of directory and root nodes from UE4 and the LE plugins. But while those work on Windows, I always get stuff like file://../../../MyProject/Content/Movies/MyVideo.mp4 I've tried to derive which directory that should be, but nothing has worked.

[sonic lake]

@violet musknot sure you need the file:/// thing. /mnt/sdcard/videos should be enough

I cannot test it now, away from my VR headset

[violet musk]

Thank you, I'll try that

[violet musk]

Yeah, I can't get that to work either. I would be very grateful if you could check it once you get to your headset. I've also had no luck with "Open File". Only "Open URL" on the webserver link worked. I only have tomorrow left, so I'll have to start thinking about an alternative solution later.

[quaint mango]

You can get the root directory on Android/Quest by placing this in your cpp file:
#if PLATFORM_ANDROID
extern FString GFilePathBase;
#endif
Try using GFilePathBase to generate the path to your video.

[violet musk]

The project is blueprint only right now, which cpp file do you mean otherwise?

[quaint mango]

Any cpp file that needs access to the root directory. You can create a blueprint function to retrieve the string, but I think you need to convert your project to cpp. It's not too difficult, just add a c++ class in the editor.

[violet musk]

Alright, I'll see how far I get lol.

[ashen vector]

pumping a little this post, hoping to get some advice... thank you.

[violet musk]

Can you show a screenshot?

[violet musk]

Thanks, it worked to get the string, which is
/storage/emulated/0
But unfortunately I'm still unable to play the file. It also still returns false.

I've been wondering what OpenFile() actually does, but looking into the code that's too much for me.

Idk where the function ends up starting, really.

[quaint mango]

Do you have the correct android permissions? I think you need android.permission.READ_EXTERNAL_STORAGE in the android project settings.

[violet musk]

Yeah, I do have Read, Write and Internet (which is why OpenURL works for the webserver hosted file)

[ashen vector]

will take one as soon as I can..

[violet musk]

I also have to say that initially, in 4.23 anyways, things were saved in the UE4Game folder. Now it seems to be Android -> data. And there it was possible to simply paste in the .mp4 in the project directory.

Just that Android data doesn't work either for me.

But that was anyways with Media Source files and OpenSource()

[quaint mango]

If I remember correctly, I couldn't get the video to play by manually entering the path. I had to concat the file with GFilePathBase. I'll test it out later today and see if I can get videos to play.

[violet musk]

concat?

oh, right

i get it

[quaint mango]

like, make a new FString with GFilePathBase + "File Name"

with "/" to separate directories

[violet musk]

Would be very appreciated if you could check, I'll try tomorrow again. It's midnight now.

Also I feel like this is a pretty basic thing.. 🤔

Idk, but it's weird not to find an answer anywhere. Maybe my Google searches are shit.

Thanks to you guys and see ya.

[quaint mango]

I was able to get the videos to play on the Quest 2 by using "Open File" with the path "/storage/emulated/0/Movies/MovieName.mp4" (or by concatenating it with GFilePathBase, which produces the same results). Are you placing the videos in the "Movies" folder in the root Quest 2 directory (the one you see when you open the Quest 2's internal shared storage on PC)? The root directory isn't the directory of your game folder, which would be in the UE4Game folder instead.

UE4's video playback performance is pretty terrible, though. I thought the Quest 2 should be able to handle 8k videos. I wonder if UE4's android media player isn't using hardware accelerated decoding.

[violet musk]

Hey, thank you very much for testing. I've tried both throughout Monday and Friday. But especially yesterday I was talking about the Movies (or other) directories in the actual root, since my thought was that if the project folder doesn't work I'll try to play them from a general directory. Which would be nice anyways, cause for reasons I'll have the final project with slight changes multiple times on the device (simplicity for the customer).

Are you saying that the directory used even with /storage/emulated/0/ is the game folder?

And is that then in
Dieser PC\Quest 2\Internal shared storage\Android\data\com.mycompany.myproject\files\UE4Game\MyProject\MyProject\Content\Movies
?

No success for:
files/UE4Game/Movies
files/UE4Game/MyProject/Movies
files/UE4Game/MyProject/MyProject/Movies
files/UE4Game/MyProject/MyProject/Content/Movies

[violet musk]

files/UE4Game/Movies
files/UE4Game/MyProject/Movies
files/UE4Game/MyProject/MyProject/Movies
files/UE4Game/MyProject/MyProject/Content/Movies

cache/Movies
/Movies
files/Movies

And additionally, this is the old folder, which is now only used for Editor test/startup from what I can tell:
root/UE4Game/Movies
root/UE4Game/
root/UE4Game/MyProject/Movies
root/UE4Game/MyProject/MyProject/Movies
root/UE4Game/MyProject/MyProject/Content/Movies

[violet musk]

I've tried a new setup in the 4.27 VR Template. Same problem. Open Source works, Open File doesn't.
It's just a media player with a newly created media texture, assigned to a material, assigned to a plane, in an actor that has a media player variable and the plane with the material. Open Source works (with video packed), Open File doesn't.

The file location of the video is the same structure again as above, in the installed apk location of the com.epicgames.testvr app.

[violet musk]

Okay, so.
When I use the Project Launcher it works. As in, it uses /storage/emulated/0/Movies/video.mp4 in the very root.
But when I package the .apk it does not work.
I kind of can't "install" the different Quest devices one by one over the Project Launcher tho.

The Project Launcher also creates the root/Android/data/com.app.name/ folder as well as the root/UE4Game/MyProject folder.

[violet musk]

An .apk from a shipping build through the Project Launcher has the same problem again and the videos don't work.

[mighty carbon]

@hallow knoll do you happen to know (if not, could you please find out) if software occlusion culling culls triangles and not the whole meshes as other culling methods do on mobile (Quest, using Vulkan) ?

[quaint mango]

Sorry for the late response (different time zone). /storage/emulated/0/ corresponds to the "Internal shared storage" drive you see when you open the Quest 2 storage on PC. It's not the game folder. In the "Internal shared storage" drive, you'll immediately see a "Movies" folder. That's where I placed my videos. I wouldn't place the videos into the "UE4Game" folder or the com.mycompany.myproject folder, because you might need to delete those folders when reinstalling the app.

Both launching the project from the editor to the Quest 2 and packaging the shipping build and installing the apk worked for me. I'm using the VRTemplate in UE4.27 as a base with OpenXR and OculusOpenXR enabled.

[manic pawn]

Im having difficulties with a small AR Setup I made,
Im working in 4.26.2, i did manage to launch it over my phone successfully, now the problem is that my tracked image when on screen is not showing AR,
I know that the problem could probably be anywhere from blueprint to something not connected, does someone know how I can find out?

The Tutorial I mostly followed
https://www.youtube.com/watch?v=yQKJkGenTnA&t=5322s

[worthy quest]

You'd need to provide more info on what you're doing and what isn't working as expected together with some screenshots of your blueprints/code

[viscid sonnet]

Hi, I would like to create configuration files for several platforms. However, I faced a problem relative to r.MobileHDR.
I have to turn off r.MobileHDR for Android build and turn on the same setting for a PC build.
I put "r.MobileHDR=False" setting into
"..Project\Config\Android\AndroidEngine.ini" but I have got a crash while starting. When I added "r.MobileHDR=False" into "..Project\Config\DefaultEngine.ini" the build was run successfully. However, if "r.MobileHDR" platform setting differs from "DefaultEngine.ini" setting I will get a crash.
So, I can't change "r.MobileHDR" for each platform. Can anyone help me understand why this happens?

[neat fulcrum]

Begging for help on an issues that is a strange request. I am using Unreal 4.26 and I am developing for the Oculus Quest 1/2.
I would like to have a button in my app open a website. Can you tell me if there is any way to Gerry rig this to be a possibility? The website I would like to open is my Oculus Portfolio. I really am not trying to advertise here, but I think it helps to know what I am trying to open and why. It doesn’t seem like it should be an impossible task, but I can’t find anyone to help me with it. It is really impossible, and why?
https://creator.oculus.com/community/109816967492217/

[violet musk]

Thank you for the additional info. I've tried all of those variations for sure. With "Internal shared storage" as root as well.
I'm actually using the same setup for my test (UE 4.27 VR Template, OpenXR and OculusOpenXR). I will have to look into why packaging doesn't work for me some other time. It almost feels like something might be wrong with the read permission after all, but it looks correct. As a workaround I managed to simply package all the content into different .obb patch files amounting to 9 GB lol. But thank you for being so responsive.

[manic pawn]

When I'm launching my AR I expect it to show a part of a minecraft world on top of my Physical Image, my phone uses the camera but when held on the image nothing happens

https://blueprintue.com/blueprint/p0_3dcv2/
My level BP

https://blueprintue.com/blueprint/9tntzng8/
My Pawn

The ARCandidateImage has a texture and the Ar Session has in its array ARCandidateImage
A PlayerStart and a Directional light in my MainLevel are existent
BP_Pawn has a Camera

[ashen vector]

Any advice on how to match colors from the editor to the running app on the oculus quest 2?

On the editor colors looks fairly well, but when running the app on the oculus everything looks reddish and a bit darker.. I cant share much of the images (NDA) but this one is the editor colors and the next images will be a screenshot from the device.

[violet musk]

I have looked a bit into the video playback performance and the Quest 2 is only using around 60% CPU and GPU on playback. So you were probably right about the hardware acceleration not being a thing.

[quaint mango]

I think UE4's android media player is using the default media player in android. I'm not sure if it supports hardware accelerated decoding, especially for h265 videos. I'm looking into how to implement the android exoplayer instead. Seems pretty complicated, but my project can't move forward without fast decoding of high res videos.

[violet musk]

I see. I'm a little bit surprised by it, because this project I'm having here is still running on Quest 1's. And I don't remember only getting like 25-30 FPS. It's not a huge deal as long as there is nothing but the video happening (no other point of reference). But it's still daunting.

I just tested one of the old devices I've gotten today. Buttery smooth on the Quest 1 (4.23). What the hell.

[violet musk]

Do you actually know what happened to the "Oculus VR" plugin options when using Oculus OpenXR?

[quaint mango]

I'm not sure I understand. Are you trying to use both the Oculus VR plugin and the OculusOpenXR plugin? I think you're only supposed to choose one. I don't know what happens when using both. The OculusOpenXR plugin is still in beta, so maybe it's causing performance issues. The last time I worked on mobile VR development was over a year ago with the Oculus Go, and I remember the video playback performance was much better than I'm getting in 4.27.

[violet musk]

I'm talking about the options to choose GPU/CPU level etc right in the editor plugin. There were other options like splash screen and FFR

For a while I remember having to use the Oculus UE4 source builds, but they did implement that properly at some point into the regular UE4 releases. It also shows with the Oculus VR plugin active in 4.27, but not with the Oculus Open XR one.

Welp. I never knew there was an extra setup for OpenXR outside of the plugin... -_-

That is probably it and will explain why the controllers are broken, and only gaze controls work, fml.

Inb4 that fixes the video access..............

[quaint mango]

I couldn't find any docs that reference the Oculus OpenXR plugin on Oculus' developer website. Doesn't seem there are options to set the splash screen or FFR. Maybe it's safer to just use the OculusVR plugin instead? Seems like the OpenXR in UE4 is only fully supported for PC applications right now.
The Oculus OpenXR plugin specifically says to disable the OculusVR plugin, though.

[violet musk]

That honestly sounds like the best idea.

Does "OpenXR" (or whatever it would be caleld) show up as a plugin for you in the Project Settings?

this list

[quaint mango]

It doesn't, but that probably just means there aren't any extra settings exposed through the plugin.

[violet musk]

Yeah, possibly.

https://docs.unrealengine.com/4.26/en-US/SharingAndReleasing/XRDevelopment/OpenXR/Prerequisites/

The only thing I saw now. Which didn't change anything.

But yeah.

[quaint mango]

Yeah, I'm not sure about the correct setup steps myself. I'm assuming that 4.27 supports OpenXR out of the box (as compared to 4.26), and the Oculus OpenXR plugin should have you covered. I mean, it mostly works for me already without any extra steps.

[violet musk]

It didn't recognize the controller inputs for me.

I'm wondering if that has something to do with it.

[quaint mango]

The thumbstick up/down/left/right actions don't work in OpenXR. The other buttons actions do work for me, though. To get the thumbstick to work, you'll need to use thumbstick x/y.

Do none of the controller buttons work? Is it actually tracking for you?

[violet musk]

Nothing of this works for me.

The tracking works, yeah.

I'll build now with the OpenXR setup possibly fixing it. Otherwise I'm going back to the Oculus VR plugin and try the input there.

Last friday I didn't wanna use an old Android SDK (needed for this project) to not break another very important project in the process. Now I'm doubting if it was the right decision to just change versions real quick, yikes. On the other hand, maybe it would have broken the other setup (which was a bit specific and synched with another company)

[quaint mango]

Yeah, doesn't seem like there are many ppl working with VR on 4.27 yet, so it's difficult figuring out how to get things to work properly.

[violet musk]

That prerequisites page I linked is the same for 4.27 btw. In regards to integrated.

Yeah. That was dumb of me tbh.

Idk why I thought it would be stable and stuff. Maybe because of the OpenXR and VR Template ads ;P

[quaint mango]

Thanks for pointing that out. I'm thinking the Oculus OpenXR runtime mentioned there might be specifically for the Rift (PC). If anyone knows the proper steps for setting up OpenXR for both PC and Quest development, let me know. It seems to work on my PC without any extra steps.

[shut ermine]

Probably a dumb question, but if I want to add VR hands and have them positioned+oriented "correctly" given the position of my controllers, is there a standard best way to do that?I can just take hand models and attach them to the controller in UE, but they end up in a weird location and orientation. I can, through trial and error, put some offsets or carefully position sockets, etc., so that the hand transforms feel right, but I won't be able to make it controller-agnostic (as I only have one set of controllers - I won't be able to test on index/rift controllers, for example).

I assume this is a solved problem already though?

[hallow knoll]

@quaint mango @violet musk OculusOpenXR isn't yet up-to-par with all of Oculus' OculusVR-Plugin features. They're still working on that, and some of the features has to be implemented as OpenXR extensions.

[hallow knoll]

If you're using OpenXR you can make one "offset" agnostic by aligning it to GripPosition and GripRotation, which is equal to MotionController Location and Rotation.

Prior to OpenXR each controller would have to use individual offsets

[shut ermine]

Ah, cool - so OpenXR's GripPosition and GripRotation are roughly the same w/r/t one's hand position regardless of the controller? That is exactly what I'm looking for - thanks.

[hallow knoll]

Yes each runtime is supposed to return a value for Grip Position/Rotation that's aligned with the hand that's gripping the controller

In Unreal we use GripPosition for MotionControllerComponent Location, and GripRotation for MotionControllerComponent Rotation

And if you didn't know about that, there's also "AimPosition" and "AimRotation" which is also returned by the Runtime and can be used as data that works across different controllers. I talk about it a bit in the OpenXR VR Template livestream!

[shut ermine]

Is this the livestream you're talking about? https://www.youtube.com/watch?v=C98Dyx8h-H0

[shut ermine]

Ah yeah, talked about at ~58 minutes. Awesome - I should watch the whole thing - I didn't know about this video. Super helpful. Thank you!

[violet musk]

@quaint mango Okay, I just made a pretty nice discovery. In a way. The builds were crashing on the Quest 1 at startup because of Vulkan. Once I went back to ES3.1 things worked again on the Quest 1 and also with much better performance. I tried the same build without Vulkan on the Quest 2 and got the same result. I'm getting stable 72 FPS with 4096x2048 videos again. That's not 8k, but much better than the 25-30 I got with Vulkan.

[quaint mango]

Thanks for the info. I tried disabling vulkan, but my Quest 2 gets stuck on the 3 dot loading screen. Wonder if I need to delete my intermediates folder, but I don't want to wait for all the shaders to compile again.

[violet musk]

Maybe some extra info: Also using armv7 and Min/Target SDK is 25/25 (23/25 worked too)

I didn't need to delete the intermediate personally, but yeah.

[quaint mango]

Yeah, I had it on arm64. Trying to deploy with arm7 right now.

[quaint mango]

Unfortunately, couldn't get past the 3 dots with vulkan disabled. There's definitely something weird going on with my system. Going to try updating to Visual Studio 2019 (I'm still on 2017) and maybe reinstall my android SDKs.

[violet musk]

Hm, alright.

https://www.youtube.com/watch?v=4SY2Za6j7UY This is the setup I have currently

And I still mainly only have API 30 installed

[dawn lark]

anyone met whole edge of viewport Distorted(like the whole edge Streched...) in unreal with VR?

what kind of problem it might be?

[urban ruin]

hey guys, I have a VR project that needs help. I modeled an not animated fist n trying to replace the hand mesh but it doesn't allow me to change the hand mesh, can anyone help?

[quaint mango]

I was able to finally get OpenGL ES3.1 working by switching to the OculusVR plugin. Videos play perfectly smooth now, even 8k videos and 10bit videos. Seems like Vulkan and Oculus OpenXR causes performance and compatibility issues, so I'm sticking to OpenGL ES3.1 and the OculusVR plugin instead (arm64 works fine for me with this setup). Thanks for sharing your discovery!

Btw, I also figured out that if you're using OpenXR and the Oculus OpenXR plugin, you need to enable the "Start in VR" option in the project settings, else it'll just show 3 dots (that's why the VR template was working for me, but not a blank project).

[violet musk]

Nice, happy it works for you now! And thanks for the extra info. Maybe just as some extra info that came out on top of this, since I never tried to play the videos directly again and just packaged them. The patch/overflow .obb options saved me here, since I install everything by hand for only a couple devices.

Idk what the limit for these files is, but if overflow goes up to 4 GB as well, it's at least 12 GB of files:

apk off and these obb options

In my case i also have 7 versions of the same project with different movie files and I only needed to add the needed ones in my Editor Content/Movies folder to package them (and flip an Enum that would handle my other settings)

This will (ofc) leave out all the missing movie files and I don't need all the projects to be 9 GB in size.

[idle osprey]

I'm wanting to support Left-handed and Right-handed controls. I'm currently doing c++ void AVRCharacter::SetupPlayerInputComponent(UInputComponent *PlayerInputComponent) { Super::SetupPlayerInputComponent(PlayerInputComponent); PlayerInputComponent->BindAxis(TEXT("Forward"), this, &AVRCharacter::MoveForward); PlayerInputComponent->BindAxis(TEXT("Right"), this, &AVRCharacter::MoveRight); }
Where Forward and Right are mapped in Inputs to my left-hand motion controller. Is there a way to change the Input mapping? Or do I need to change the bindings to something like ForwardLeftHand and somehow unbind and rebind to ForwardRightHand?

[quaint mango]

You can use add/remove action mapping and add/remove axis mapping. Here's a forum thread on how to do it in blueprints: https://forums.unrealengine.com/t/mini-tutorial-the-new-blueprint-support-for-runtime-key-binds-controls-remapping-action-mapping/108777
For c++: https://www.gamedev.net/blogs/entry/2265817-unreal-engine-4-dynamically-changing-input-bindings/
You can create a bind Left-hand function and a bind Right-hand function that removes and adds the correct actions/input mapping. Make sure to save the key mappings.

[idle osprey]

Great, thanks!

[prime plover]

Hi guys, I'm trying to get a basic UE5EA Google Cardboard VR project running on Android 10, but without luck. I'm getting the following crash exception:
java.lang.NoSuchFieldError: No static field ui_settings_button_holder of type I in class Lcom/google/vr/cardboard/R$id; or its superclasses (declaration of 'com.google.vr.cardboard.R$id' appears in /data/app/com.epicgames.cardboardVR

What I've found so far:

• https://forums.unrealengine.com/t/googlevr-crash-opening-application-on-device/119777
• https://issues.unrealengine.com/issue/UE-65983

Configuration:
UE: UE5EA
Android API: 28-31
Build tools: 29.0.2(tried with v31 as well)
Target and minimum SDK: 29

NDK: latest
SDK:matchndk

Any directions how to get this running with UE5EA? I had no luck with 4.25 either.

[dawn lark]

when FPS is very low, while rotate HMD & head the edge at the direction which turning to streched like this...anyone know what's the reason might cause this?

timewarp, spacewarp, or other reasons?

quest2 does not strech the pixel at the edge, but is black there and that's good and which is the result here wanted.

[gray bane]

Hi, any ideas if destructibles are supported on VR/mobile devices or not? I have been trying to make it work for Quest 2, but it doesn't seems to work.

[urban ruin]

hey guys, this is my L&R motion controllers, is there anyway to help me separate them to appropriate locations?

[violet musk]

Would be good to know what HMD that happens for, that isn't the Quest 2.

[violet musk]

https://www.youtube.com/watch?v=EVGnYpFog9Q There is a 5 year old comment here that mentions having to use a source build to do some code changes in APEX for mobile and then building it manually. But there are no details. You could alternatively make a normal mesh and one that is multiple destroyed pieces and replace the normal mesh once it's supposed to be destructed.

[violet musk]

Not exactly sure what I'm looking at here.

[urban ruin]

uhh those are boxing gloves. they basically too close to each others. i tried separate them but not works as expected

[mighty carbon]

@hallow knoll @magic mango folks, by chance, is Epic going to fix VTs packaging for Android in any of the upcoming 4.27 hot fixes? Not only I can't use VTs, I can't even use UDIMs for Quest project only because UE4 fails to packages VTs (streaming VTs that is, not RVTs).

[gray bane]

I will try this. What we want is breaking of chunks from walls or wood when player shoots at them. I didn't find anything more feasible then using destruction. Alternatively, we could go towards render targets and pre-made meshes

Have you ever tried building PhysX from the NVidia githib repos?

[violet musk]

No, I haven't used destructibles on mobile so far.

[fringe blaze]

Has anyone gotten this error before when installing to a Quest 2?

adb: error: failed to copy 'main.1.com.VSC.SO.obb' to '/obb/com.VSC.SO/main.1.com.VSC.SO.obb': remote secure_mkdirs failed: Read-only file system

Google literally returns no results.

Apparently, %STORAGE% is an empty string.

[dawn lark]

no, it's not. what does this problem belong to? Timewarp?

[wheat wyvern]

Hi. i have an archaelogical project of mine running in VR (oculus desktop). I also use it quite often to shoot demo in game but head movements can be quite annoying in the video itself. I'd like to know if it's possible to simulate a steadycam attached to my pawn instead of the default camera so I can benefit of a stabilized in-game image (and thus enabling me to "film" in game)

[radiant garden]

There are some options for setting up Spectators. If I'm not mistaken you can also setup an alternative camera to render to the desktop. I'm not very familiar with the details on either of these two techniques, but you might be able to use one to attach an an actor to your player that does camera smoothing.

[wheat wyvern]

@radiant garden thanks, i'll check this

[sterile pulsar]

On 4.27 I can't use the built in water features at all. With instanced stereo rendering on I get the weird quad flickering, and with it off only one eye is rendering correctly and the other one is all kinds of messed up. Any one get water working in UE4?

[clever iron]

Launching to Oculus Quest on UE4.26.2, have Vulkan render enabled and everything looks dandy in the editor with Android preview enabled. If I launch it on the Quest it has almost no lighting on anything, all super dim, super laggy, and almost like there's a point light emanating from the headset that shows a light gradient on the floor. Even tried bumping the directional light from 40 to 10000lux and it does like nothing

all of my lights are static per the documentation

anyone know why deploying does this to my lighting?

[sterile pulsar]

If Instanced Stereo Rendering is disabled for 4.26 the water works. Real confused. Maybe it's because of the open XR implementation?

[sterile pulsar]

If you disable Instanced Stereo and Mobile Multi-View it works in 4.27!

[wheat holly]

I don't think removing Instanced Stereo is worth it for most projects over water though.

If you can get away with it you could also just use a simple self made material.

https://www.youtube.com/watch?v=r68DnTMeFFQ&list=PL78XDi0TS4lGXKflD2Z5aY2sLuIln6-sD

I was for example making a simple tower defence set on an island, so I used the help of that series to create the water and was still able to use Instanced Stereo Rendering 😄

[quick kiln]

Hello, I've downloaded the VR demo. What the WidgetInteractionLeft and Right does? Without those the game seems to work just fine, and those seems not used anywhere. Do you have an idea?

[sterile pulsar]

@wheat holly . It's just a simple game for now about VR and boats. Was gonna be a quick prototype to see if sea sickness translates into VR sickness (and how to mitigate it.). We probably will use custom water later but the quick implementation with waves and buoyancy is nice, since I'm not too experienced with Unreal. Thanks for the tut tho!

There's almost zero documentation on the buoyancy component so it's kind of daunting to figure out where exactly it gets wave height (since water custom body doesn't work with it out of the box) and I didn't wanna get bigger down remaking buoyancy quite yet.

[idle osprey]

Where should I file a bug against 4.27? I have a recipe for making a blank VR project that seems to be only abut 25% successful in deploying and properly starting on a Quest/Q2. It's 100% successful in 4.26.2.

[ashen vector]

Hi guys,

I am having some issues trying to bring some textures as decals on the walls for a VR presentation on oculus, I want to do it with decals to get a nice resolution on the drawings but they are not showing I followed a few tutorials with no luck, not sure if it is possible to have them working on VR.

if anyone has a recommendation or a method to get it working I appreciate if you can share it. I am on version 4.6 and deploying to oculus quest 2.

[urban ruin]

Hi guys, I have a problem here. I dunno how to explain it but only showing u some pictures

This is my location of VR Pawn

But my friend tested with his Quest 2, this is what it shows. the circles are the location of hand meshs. Can anyone explains how this happens? Thx in advance

[ashen vector]

you need to poses the player 0 controls.

select this on your pawn settings

[tribal lintel]

does anyone use some kind of tool to disable display inputs? having multiple monitors can really tank performance for VR, would really like an easier way to "unplug" monitors without needing to physically unplug them from the PC. Maybe there is something solid someone can vouch for

[clever iron]

Still haven't been able to figure this out

[tribal lintel]

<@&213101288538374145>

[prisma igloo]

blue, you do it

[wary thunder]

:no_entry_sign: andrea#7086 was banned.

[prisma igloo]

:p

[grizzled elk]

😅

[fringe blaze]

When I package my game for the Quest 2, I just get the three loading dots and a black screen 😦

I've checked out the Android SDK stuff, and I have no idea what to try, or how to get logs from the Quest 2

Actually, I can view the logs now, and nothing seems weird. I can't get to the menu in the Quest to quit the program.

[fringe blaze]

The map loads; I added a PrintString node to the level blueprint and it shows in the log.

[timid dust]

Does anyone know a function I can use to check whether I am playing in VR or standard? UHeadMountedDisplayFunctionLibrary::IsHeadMountedDisplayEnabled() did not work nor did IsHeadMountedDisplayConnected

[urban ruin]

is it normal that my preview juz totally stuck n not able to move? i mean general preview not vr preview

[ashen vector]

yes, if you press the play button you are not using any player controller, so nothing happens actually. you must posses a player controller to be able to move. if you want to preview it on the pc you must create another player controller, but it is just extra work.

[urban ruin]

hope u dun mind my friend request, anyway my friend tested and problem fixed. I'm relief, thx alot mate

[ashen vector]

make sure you have mobile HDR disable if you are using mobile multi-view. you can´t have both enabled.

[quick kiln]

Do you know where to download the UE4 VR hand? My template project doesn't includes it.

[timid dust]

If you have Engine versions below 4.27 you can create a VR Template project where I believe they still had the VR hands and migrate the hand mesh to your project then delete the template

[urban ruin]

that sounds complex

[fringe blaze]

I have Mobile HDR disabled. The Pawn is spawned and possessed, but input doesn't seem to work (I have log statements that are logged when the user grips).

I still just get the loading dots with a black screen.

[ashen vector]

sorry, that is as far as I can advice you.

[fringe blaze]

That's okay 🙂 someone else will have advice...hopefully 😆

It's promising that the game is still loading everything

I'm using VRE with OpenXR and PhysX. I'm gonna try to use the new Chaos branch of VRE and hope that it was affecting thing somehow.

[abstract forum]

Facebook hardware announcements in 11 hours

https://www.facebook.com/zuck/posts/10113914865918951

[delicate isle]

Would've thought they'd wait until FB connect to announce the Quest Pro

Unrelated note, anyone have any idea if it's possible to get per-frame motion vectors on the Quest 2?

There's the motion estimation OpenGL extension from Qualcomm on the XR2 but there's nothing for Vulkan yet. https://developer.qualcomm.com/blog/improving-vr-performance-using-motion-estimation-opengl-extensions

I know that VR Desktop uses it for their Synchronous Spacewarp implementation

FB have published a bunch of new OpenXR extensions including ones that will perform Async Spacewarp if you feed the OpenXR runtime some per-frame motion vector buffers but I was under the impression that Unreal calculates these in post-processing which we shouldn't be using on mobile

[jade kettle]

Hi guys, I'm using an Oculus Quest connected to the computer with a Link cable. I want to use some SteamVR features in my UE4 project but I'm running into the issue that whenever I play in VR, the UE4 projects seems to bypass SteamVR and runs via the Oculus Link platform

Anyway to have it use SteamVR

[limpid widget]

Just out of curiosity. Did someone try implementing FSR into 4.27 or 4.26 and using it with VR?

[jovial hamlet]

Disabling the oculus plugin might do it

[jovial hamlet]

does it not use steamvr if you open steamvr first and then launch your game?

[jade kettle]

@jovial hamlet Thanks for the tip, I'm doing a different task atm but I'll check in later

What's going on right now, I've got the project running in VR and then I can switch to SteamVR Home via the Oculus environment (example attached). Which seems to indiciate to me that the project isn't running via SteamVR.

[jovial hamlet]

running the game with -hmd=SteamVR command line argument seems to do the trick. Also should be possible to change the hmd plugin priority in ini files as per https://answers.unrealengine.com/questions/1014650/is-there-a-way-to-tell-unreal-which-vr-system-to-u.html

[jade kettle]

Thank you very much!

[radiant garden]

I've observed similar with 4.27. It's not everytime I start the game. It also seems to be primarily when I run packaged builds. I haven't observed the issue when launching directly from the editor into the quest. I've noticed when the input doesn't work, the hands are also positioned wrong. Tracking is on, but the offsets are incorrect. This makes me suspect it's a problem with the OpenXR plugin. I haven't had time to further test it though.

[tired tree]

@fringe blaze there is a current issue with oculus and openXR where for "some" people binding to the X button will cause input to not correctly be loaded

i reported it to epic and they are currently saying its an issue with the oculus runtime

it works fine for me, but multiple of my users have no input as long as the X button is bound to anything

[paper epoch]

is it possible to have a movable point light in oculus quest 2 without shadows? My build is crashing with it

[wheat holly]

There’s a “Cast Shadow” property on lights yes, I don’t think there are any games with dynamic shadow casting lights on Quest in the first place, seems like a performance disaster 🙂

[sage gulch]

90fps in forward shading really isn't the same thing as 90fps in deferred rendering, right? lower motion-to-photon latency in forward shading being what it is, does it mean the output frames are tied closer to tick events, that deferred rendering can do the 'same' fps count but lagging the game delta time by a larger amount, or what?

[tired tree]

@sage gulch render thread in ue4 is always at least a frame behind game thread

intentionally

which is why late updates keep a three frame buffer of positions to apply whenever a frame hits the render stage

its using old game thread data

[sage gulch]

Hmm right but how does deferred do it?

The name implies it might be rendering more than one tick/frame behind, but I've never really checked.

Tryin to be able to compare the relative cost of draw calls, texture lookup, etc in one mode vs the other

[ashen vector]

quick question:

Will reducing texture sizes give me more FPS on the quest 2? or will it just use less memory?

[sage gulch]

They draw faster

[ashen vector]

cool thanks... do you know the factor? for example a 2k vs 1k texture will be twice the time or 4 times the draw times?

[sage gulch]

Well its 4x the data to process but probably depend on size and shader etc

[ashen vector]

thank you. that helps.

[abstract forum]

Not sure if this is allowed but oculus is running a promotion on the Quest 2

https://twitter.com/oculus/status/1440466060612825088

Oculus (@oculus)

Virtual reality is best when shared. So we’re gonna help you share it. For a limited time, buy a Quest 2 and get a second for $100 off. Terms and conditions apply. https://t.co/3y3VqotU9T

Twitter · Sep 22, 2021, 12:00 AM

For those who want to get a second one this might be a great time to pick one up

[dawn lark]

how to implement TimeWarp while SingleView(not MultiView)?

[sudden glade]

Hey, guys, is anyone know how should i get dynamic shadow in AR with UE4.26.2?

I search some old info and tried, but it's not works, right now i had the plane is transparent but there is no shadow cast to the plane, i think might only about one checkbox i didn't checked, that makes the shadow not work, is anyone can help me about this? Thanks in advance

[jade kettle]

Has anyone experienced that the Vive Trackers are a bit jittery compared to the headset? Like literally tenths of millimeters but it's disturbing enough for virtual production still shots

[tired tree]

@jade kettle always been the case, its best to run some smoothing on them

low pass filter the location to cut out small changes, ect

[idle osprey]

@fringe blazeI've been fighting the 3 dots issue for a couple of weeks now in 4.27

[fringe blaze]

Glad to know it's not just me. I'm building an MVP right now which doesn't need to run on the Quest 2, so I won't be able to help unfortunately.

Just gonna do regular PC input and PC VR for now, then try things out again when Unreal 5 leaves Early Access.

[idle osprey]

I've had lousy luck with anything related to the Quest since 4.26 came out.

[fringe blaze]

I got some builds of a basic project to build for the Quest in 4.26 with VRE

Between OpenXR and Chaos...I'm expecting some weirdness for a little bit. Very strange to me that the final version of Unreal 4 is the first to use a new API

[idle osprey]

I have a project I did in 4.25 that I can build in 4.26 and 4.27 and it will deploy and run on the Quest every time, no trouble. I cannot make that project from scratch in 4.26 or 4.27 or UE5EA2

[fringe blaze]

Weird

[sage gulch]

so does that mean flipbooks and animated textures are extra expensive in forward rendering, because it's doing not just an extra texture lookup or drawcall or whatever, but doing it for 3 frames of the animation for each frame of the game drawn through late updates?

maybe it could read a single frame from 3 frames ahead and keep it in a buffer.. anyone know how that breaks down, lmk

[sturdy coral]

@sage gulch no, deferred isn't any more frames behind that forward (your earlier question)

deferred puts material info into a gbuffer an then later lights it, forward does material stuff and lighting both at once

both may also have a separate depth prepass

the 3 frames thing is separate from forward/deferred and related to pipelined game+rendering thread

[sage gulch]

interesting

does that mean it's only pulling a single frame in non-vr builds, for any given flipbook?

[vast thunder]

Anyone here with valve index/htc/anything not oculus willing to help me test game
3 gb download on steam, just need to test controls

[manic pawn]

where could I find an working example for an AR imagetracker in 4.26.2? Im getting weird results: The Cube i put on the image flickers every few seconds and spins around in an invisible circle way up, any help would be greatly appreciated!

https://blueprintue.com/blueprint/cj3fsutw/

Here the corresponding BP if interested

[fierce shoal]

Hello, opening an APK file on the Quest , results in this picture. Can not open it. It closes immediatly to home .I did already a complete reinstall reset on the oculus Quest. My previous project file did work on this Quest. Does someone has an idee what to do? I searched for days but no working solution.

[paper epoch]

shadows are off in my setup but it still crashes

[urban ruin]

hi. when i cast bp_motion Controller, may i ask what should i put in the object pin

[sonic lake]

@urban ruin what is your use case for that cast? In other words, what are you trying to achieve to be needing that cast?

[urban ruin]

oh hi marco, i cast it for makin the Mcontroller destroying the other actor. now i try using a variable i created to test out the result.

bcoz its logic is simple yes, however when it comes to vr thingy i got lost

[sonic lake]

@urban ruin is it that you are touching another actor with the motion controller and you want to destroy it? And you are checking if the actor was touched by a BP_MotionController? In that case you can get the overlapping actor from an overlap event and use it into your cast

[urban ruin]

yeah ady, but my only obstacle was the cast node. bcoz i have to cast something to make it work. otherwise compile failed

n now i got worse problem happened. My score Ui gone, hand meshes get further away from user

[sonic lake]

@urban ruin that's not related to the cast, it is very likely another problem

[urban ruin]

Hmm I still have time to identify the problem, but now it proves my way works. Lucky then

[tired tree]

@sage gulch non vr games are where it generally can hit the 3 frame difference

vr games actually have a cvar check to try and enforce 1 frame difference if possible

they buffer 3 in case of hitches

need at least two late update samples, last and current to avoid threading conflicts, then they added a third just to handle cases where the difference it more latent.

generally VR is almost always around 1 frame

[sage gulch]

oof, that means it bogs down harder the closer you run to the edge, haha

very interesting

didn't realize that non-vr games do late updates as well

[tired tree]

they dont

they just let the render vs game thread difference get a little higher

i just measured late updates a lot when debugging things and they sample between the two threads

also read through where they set a cvar to clamp VR to a frame

[sage gulch]

I see, thanks for the info!

[quick kiln]

Thanks!!

[idle osprey]

Well, I'm a little further along on my 3 dot issue. If I package and deploy to the Quest, then start the app in the Quest, I see my error "Unable to start VR"

and suddenly, it's working! WTF?!?! This is driving me NUTS!

[hallow knoll]

@idle osprey you don't need to call "Enable HMD" if Start in VR is checked in project settings

[idle osprey]

What I'm finding is that it inconsistently works. I have Start in VR checked. I'm finding that if I deploy via packaging and then running the batch files, it's a little more successful than if I use Launch, pointing to my Quest.

I'm also finding that if I go with the VR Template, my FPS are slower. Even creating a new blank level, my FPS drop to 25 if I look down at the ground plane if the project started as a VR Template project. My own project (when it works) stays at 72 fps.

I'm using OVRMetrics to measure.

[mighty carbon]

you should use Oculus tools (ODH in particular) to deploy to the device, instead of using .bat files.

[idle osprey]

The Epic bat files clean up extra UE data in /sdcard/UE4Game and /sdcard/UnrealGame

The bat files simply wrap the adb calls. Everything uses adb under the covers.

And...I use ODH a lot, just not for deploying, typically. Mostly for cleaning up, metrics, disabling guardian and proximity, rebooting, etc.

[eternal widget]

Hello! I'm trying to go from VR to flatscreen during runtime. I use the blueprint node "Enable HMD" with "Enable" set to false.

It transitions fine [Tested in Standalone mode], but freezes the game for 30 seconds before resuming play and displays this error in the log:

"LogHMD: Error: FOculusHMDModule::GetPluginWrapper().WaitToBeginFrame 115 failed (-1000)"

Was wondering if anyone else ran into this issue.

I'm using Oculus, but have the SteamVR plugin turned on as well. Could that have anything to do with it or am I off-base?

[radiant garden]

I've never seen anyone try to toggle VR like that

Would a spectator camera work for your use case?

[eternal widget]

Hmm, I've never used a spectator camera before. What is it usually used for?

For our game, the plan is to set up a level using an FPS character (flatscreen), transition to VR to play the level with a VR pawn, and then transition back to a flatscreen pawn when play ends.

[radiant garden]

There have been some games with asymmetric play where the flat screen is always showing something, and the VR pawn is showing something different

I believe Gorn offered a mode where you can have the headset player vs the desktop player, for example

I've not done it exactly myself, just read about it, so I can't recall exactly how it's done

But basically you can have an alternative camera feed for the desktop screen than the VR screen

During the portions the player is supposed to be in VR, you could attach the camera to the VR pawn

Though I think it might be awkward to put on and take off the headset during a game.

I think trying to enable / disable the HMD multiple times throughout the game is going to be a rough time

[eternal widget]

Ah, I see. Setting up two pawns and then possessing them when needed does sound like a good solution.

I'll also take a look at Gorn for that; thanks for the reference.

As far as taking the headset on and off, I do agree it's awkward, but it may be a good dev tool in the beginning for us to set up levels quickly. Time will tell on that one, but thanks for the feedback.

[eternal widget]

Yeah, I'm already having troubles as it is! 😅 Thanks again for your advice; I appreciate it.

[radiant garden]

For VR dev, I've been using a non-vr game mode or a non-vr pawn to develop the stuff that is not necessarily needed for VR

The VR Expansion Plugin has a game mode setup where it will detect if you have VR, and instantiate a non-vr pawn if you don't

If you want a reference

It's the "SteamVR_GM" if you decide to get the plugin and check it out

There's a lot in that plugin so it can be overwhelming

Though I highly recommend it

And I'm talking about the VR Expansion Plugin EXAMPLE project

For simplicity, you could always just change the GM on the level when doing non-vr work

[eternal widget]

Yes! I'm currently using the VR expansion plugin, but didn't know about that. I'll take a look at that logic in the example project.

Yeah, probably took the more complicated route rather than just swapping things out in the editor, haha.

[gray bane]

Hello. Can someone help me figure out what is causing the crash here?

[idle osprey]

I have been trying to learn how to do the same thing. Are you also enabling/disabling stereo with a console command?

Honestly, I am thinking the best way is to just require a restart and use startup parameters for whether to start in VR or 3D.

[eternal widget]

Yeah, I tried that too. Followed this post's recommendation, but it seems to still hitch on "Enable HMD" (BP node or console command):
https://answers.unrealengine.com/questions/569987/toggle-vrpc-mode.html

Thing I was shooting for was similar to Star Wars: Squadrons where you can click a button to toggle between VR and flatscreen in the menu.

[idle osprey]

What I want to do is to offer a 1st/3rd person character in 3D, full body IK in VR. But I haven't figured out how to be able to get the right game mode in a multiplayer instance.

I've only seen Elite:Dangerous' solution, which is a 3D screen in VR for the non-VR supported gameplay. 😦

[eternal widget]

Hmm, so you're planning to have something like a mix of VR and non-VR players in a multiplayer environment?

[sage gulch]

watch for the first red error when compiling and stop as soon as you see it, you need to fix all red errors

[wheat holly]

Is the original rift not supported any more when using OpenXR?

Also known as the Rift CV1.

[vast thunder]

Anyone here have a htc or index

I need someone to download my free game (safezonevr) on steam and see if you can move on main menu using joystick controls

[trail shale]

I've spent a good chunk of the day trying to get Spectator VR Screen Working again - I've got decent experience with this but if someone else uses it, please reach out to me and see if you can help! https://www.unrealengine.com/marketplace/en-US/product/vr-spectator-control-window

[idle osprey]

Rift should be fine.

[tired tree]

@trail shale I actually have an in mirror window widget in progress btw

I know you have been fighting with that for a year or more

[trail shale]

It's so close - like I had a real working UI and everything and it was only because I noticed multiple instances of the widgets that I looked deeper

it's like they are widgets but they aren't - so I can't figure out how to destroy them

[mighty carbon]

https://twitter.com/ID_AA_Carmack/status/1441496416463904768

John Carmack (@ID_AA_Carmack)

Something I have been pushing on for years is going to come to pass soon:

We are going to make available an unlocked OS build for the Oculus Go headset that can be side loaded to get full root access.

Retweets

156

Likes

1364

Twitter · Sep 24, 2021, 8:15 PM

[sturdy coral]

@idle osprey I switch at runtime

GEngine->XRSystem->GetStereoRenderingDevice()->EnableStereo(false);```

@eternal widget

I just have a vr enabled property on pawn that I send to server too so it knows whether to do IK or not, I think with vr expansion you would have to respawn with their 2d pawn though

before I went to automatically switching I used to do it based on how it was launched, you can send a url parameter when joining a server

and I would add like ?VR=true, then in gamemode login it would pick the vr pawn vs 2d pawn

[idle osprey]

I'd sure love to see an example mini-project. Right now, I'm trying to track down why one project is 72fps on my quest, and the other is 25-40fps.

Same code...has to be in the project settings, but I can't find it.

[sturdy coral]

in the engine you can find somewhere where they do it for spectators

they pass in bWantsSpectator into the join url or something

and get spawned a spectator pawn instead of a normal one

[eternal widget]

Thanks! I had tried that in BP and was getting a freeze when the headset disabled. Though, I haven't tried calling it from code yet.

I found a workaround that when the VR headset loses focus, I can disable it with no problems. Wound up checking when it loses focus and then disable HMD after.

Appreciate the help! 😁

[sturdy coral]

@eternal widget for steamvr you need this for broken focus changes, probably not your exact issue though: https://github.com/EpicGames/UnrealEngine/pull/7002

they closed out all the steamvr pull requests since they are moving fully to openxr so maybe not worth bothering with that though and just make sure it works right in openxr

[eternal widget]

@sturdy coral Thanks, will definitely look into this. Was frustrating having it work for Oculus and not for Steam headsets.

[sturdy coral]

@idle osprey in GameModeBase they do:

APlayerController* AGameModeBase::SpawnPlayerController(ENetRole InRemoteRole, const FString& Options)
{
// calling the deprecated functions for backward compatibility, should call SpawnPlayerControllerCommon directly in the future.
PRAGMA_DISABLE_DEPRECATION_WARNINGS
    if (Options.Contains(FString(TEXT("SpectatorOnly=1"))) && ReplaySpectatorPlayerControllerClass != nullptr)
    {
        return SpawnReplayPlayerController(InRemoteRole, FVector::ZeroVector, FRotator::ZeroRotator);
    }

    return SpawnPlayerController(InRemoteRole, FVector::ZeroVector, FRotator::ZeroRotator);
PRAGMA_ENABLE_DEPRECATION_WARNINGS
}

you can add a check for "VRPawn=1" in your derived gamemode, I can't remember the exact place you pass it in then though on the join session side

somewhere should have a "url" or "options" fstring where you can put it in, if joining from the console or without a session I think you just do "join 127.0.0.1?VRPawn=1"

[idle osprey]

I'd be joining with a session, yeah

Thank you, I'll see if I can wrap my tiny brain around this. 😋 I've been having so much trouble lately with Quest builds, I need to concentrate on something else for a bit.

[sturdy coral]

there is definitely a way to do it in the session workflow because I was doing it with shootergame and it uses them

but I can't remember where

@idle osprey it is through ulocalplayer:

                if (LocalPlayer)
                {
                    // Send the player nickname if available
                    FString OverrideName = LocalPlayer->GetNickname();
                    if (OverrideName.Len() > 0)
                    {
                        PartialURL.AddOption(*FString::Printf(TEXT("Name=%s"), *OverrideName));
                    }

                    // Send any game-specific url options for this player
                    FString GameUrlOptions = LocalPlayer->GetGameLoginOptions();
                    if (GameUrlOptions.Len() > 0)
                    {
                        PartialURL.AddOption(*FString::Printf(TEXT("%s"), *GameUrlOptions));
                    }```

other stuff like player name comes through there by benig injected into the url thing too

looks like you override:

    /**
     * Retrieves any game-specific login options for this player
     * if this function returns a non-empty string, the returned option or options be added
     * passed in to the level loading and connection code.  Options are in URL format,
     * key=value, with multiple options concatenated together with an & between each key/value pair
     *
     * @return URL Option or options for this game, Empty string otherwise
     */
    virtual FString GetGameLoginOptions() const { return TEXT(""); }```

[trail shale]

It's 2021 - I've been working on this VR thing for years and we still don't have a real viable spectator interface

Why the fuck did he not include anyway to remove his stupid widgets from memory -

[tired tree]

@sturdy coral the 2d pawn is a child of the VR one, can actually convert in place with the normal one

[gray bane]

There are no compile time errors. This occurs when i run the build on Quest 2. The app crashes as soon as it starts

[sage gulch]

ah I see

[idle osprey]

Thanks! I'll dig in to this later tonight.

[abstract forum]

Did anyone see the Quest Pro leak?

[radiant garden]

@abstract forum Where did you see them? I was thinking of buying a couple quest 2 with the sale you shared, but I'm going to wait if the quest pro is coming out soon.

[abstract forum]

One sec.

https://www.reddit.com/r/OculusQuest/comments/ptgyxh/ready_for_the_hypetrain_leaked_oculus_seacliff/
https://www.reddit.com/r/OculusQuest/comments/psiyad/any_guesses_are_we_getting_quest_news/hdqf8n4/?context=3

Also thrillseeker uploaded a video about this and posted some images to his twitter.

https://twitter.com/Thrilluwu/status/1441541205658161153

𝙏𝙝𝙧𝙞𝙡𝙡🖤 (@Thrilluwu)

huh. cool.

Likes

226

Twitter · Sep 24, 2021, 11:13 PM

https://twitter.com/Thrilluwu/status/1441542953357303812

𝙏𝙝𝙧𝙞𝙡𝙡🖤 (@Thrilluwu)

Another.

Likes

120

Twitter · Sep 24, 2021, 11:19 PM

Anyway - I Will stop posting for a bit. I am spamming the channel.

[sacred jolt]

stop media sound doesn't work in packaged oculus quest 2 game, any idea how to fix that?

[gray bane]

What I found after searching is it's a memory allocation problem. I can't really find out what's causing it

[neat fulcrum]

I watched an Unreal live stream about importing Stereoscopic 3D video, but the steps didn’t work on my 4.26 version, and I have top to bottom footage not side by side. Anyone know of any sources I can use to figure importing 3D images and videos, or do I need to spend the $250 on the plug-in?

[radiant garden]

plugin?

[frozen coral]

does anyone have any tips or a starter guide to learn VR with blueprints. I have been using bps for about a year or two now and I know replication but I don't know where to start on VR. I play on quest 2 and would like to end up making something with a fullbody like boneworks or population one but just a sandbox to play with my friends. Any info is appreciated (The goal is to learn VR with parkour and weapons so idk if that changes anything)

[neat fulcrum]

@radiant garden

[lofty iris]

Guys, how would you go about map change in VR, open level or level streaming?

[lofty iris]

nevermind, I think I use a mixture of both.

[summer cloud]

Is anyone developing for Oculus Quest/S using 4.27 and OpenXR? If so, how do you feel about it? : )

[manic pawn]

Does anyone know on how to get started making this kind of window/tunneling effect for Augmented reality in Unreal?
https://www.youtube.com/watch?v=FbP4I_dQ1oI
Any kind of advice would be highly appreciated!

[tribal osprey]

I'm going through the same process myself (except I'm a madman and I am learning UE, bp, and vr all at the same time with no experience) I'd recommend this video covering the OpenXR template https://youtu.be/C98Dyx8h-H0

They cover the openXR template in very great detail, and explain a few steps to how you might structure your VR systems.

Once you watch this though, I'd recommend immediately jumping in and messing with the API a bit. few people explain the nitty gritty details, and it can take some exploring to understand how some of it works.

[restive loom]

What's the mapping for finger tracking sensors?

Valve Index and Oculus Controller

[summer cloud]

Has anyone encountered that the teleport point fall through landscape so that the teleport does not work with landscape at all? 😓

[lofty iris]

Put a box at the spawnlocation under the landscape in the persistent level. it just loads to long also block the playermovement so the person is not walking around until everything is loaded.

[steep jasper]

hey can any one tell me why this is happening? whenever i am ticking simulate physics the gun just fly, all other guns are working fine but don't know why this one is not working

[silver brook]

How many bones/collider are on that weapon? My guess is two overlapping collisions causing it to wig out

[steep jasper]

there are no bones, and for the colliders they are the mag, hand grip, bolt and barrel hold, only these 4

[silver brook]

Show the collision boxes on it

If they are not overlapping amongst themselves then probably have the gun too close to the box collider it’s supposed to sit on

Trying lifting it up and see if it still happens

[steep jasper]

if i put it in the air and then its doing the same when touching the ground

[silver brook]

Try turning on CCD

And show me the collision settings for at least one of the colliders

[steep jasper]

ccd didn't worked 😦

[silver brook]

Show me the phys material too please

Are all the other colliders set to overlap?

[steep jasper]

yup

[steep jasper]

oh this one solved the issue, actually one was set to block...
thanks a lot for the help 😁

[silver brook]

It happens was going to ask you to stream because I was stumped beyond that

[steep jasper]

that collision was just slipping right through my eyes 😅

[hollow oak]

Hello guys, there any way to use a "swtich" button to active the VR Mode on a packaged project?

[warm rain]

I can't find an answer to this online. UE4 4.27 I want a sword to "hit" characters and deal damage to them. It works in simulate if I just drag the sword into enemies.

However, hit only works if the sword has physics turned on I guess, and the default "GrabComponent" will turn physics off when you grab an item (like my sword.)

Any idea how to maintain hit while also holding something in VR?

[zenith ingot]

could have something parented to the sword that is the same size and have that be the thing with physics on it

I'm having trouble creating a Get User Profile node that I see is in someone else's blueprint. Anyone have any ideas why that node isn't showing up? (I'm trying to find the player's hieght)

[ashen vector]

Hi I am having an issue with the app crashing on the oculus quest 2 after trying to open a level by name with blue prints.. not sure if I am doing something wrong or what... If I play it on the editor all works as intended, but if I deploy then it will crash.

Any advice on how to open a level or why is crashing?

[idle osprey]

Any info on the crash?

You could get some logs with adb or ...it's easier with Oculus Developer Hub

[ashen vector]

thanks again... its happening at random now will try to check the logs.

not sure how to retrieve that tho.

[idle osprey]

https://developer.oculus.com/downloads/package/oculus-developer-hub-win/ or Mac...whatever you're using.

It's the easiest tool I know of to tail live logs or capture them.

[ashen vector]

cool, thanks. will check that.

oh, I have the hub installed, but I don't know a lot of it uses, will try to read more about it.

[idle osprey]

When your quest is plugged in, you can get device logs. You can filter the verbosity as well as search for keywords

[ashen vector]

I just found the button.. I am doing testing this week so I may come again with more questions. Thanks a lot for the advice, I am sure this will help me a lot.

[ashen vector]

mhm.. I am getting the crash again more consistently but no error shows in the logs.

[ashen vector]

mm looks like it has something to do with the pawn. I created a new pawn and now it crashes every time.. if I use the default pawn form the VR template it works fine. :/

[kindred girder]

Is therer a way to hide an Unreal based app from the Oculus library? I have a software which I don't want to be displayed there and I was wondering if there was a way to prevent it from appearing (maybe a command line option to be used when opening the .exe of the app, or something like that)

(using the Rift S here, so with a desktop)

[haughty pewter]

Hey there good people, I need help with setting up this "Foot IK" for VR in blueprints. Background information is, I download this project https://github.com/kvoeten/ExampleIK I copied the blueprint nodes exactly for the "BP_PlayerPawn" and for it's Animation Blueprint and it works except for 1 feature which is the "Foot IK". In the exampleIK project when you crouch IRL so does the pawn and if you move to the side the character walks to where you moved IRL. In my game the only difference is that my character is C++ created and in the "ExampleIK" the character is purely blueprint made. Why isn't my Foot IK working?? can someone please help i've been stuck on this for days

[trail basalt]

Using the UXTools plugin for Hololens 2, does anyone know how to limit one-handed manipulation to only rotate (no location movement)?

[urban ruin]

so my pause menu doesn't trigger the event after my hand meshes overlapped, does anyone have any idea what's wrong?

these are the box colliders

did i miss anything?

[mighty carbon]

I wonder what happened here https://github.com/EpicGames/UnrealEngine/commit/cdb681bd6751032d706491d67c7a8dddaef84a65

[ashen vector]

I had a lot of crashes yesterday with no reason, I was testing with ETC2 but it crashed when trying to open the next level or when trying to return to the first level. I switched to ASTC and it is slower to load but crashes won´t happen as far as I tested..

Any insights on what is happening? why it crashes with ESC2 and not on ASTC? will it crash at random again with ASTC too at some point?

what about DXT? is it better?

just made a package with ASTC and it won´t load on the oculus q2, just the 3 dots forever. 😦

[mighty carbon]

use Oculus fork of UE4

(although I built apk with launcher version of UE 4.27 and it worked fine on Q2)

[civic brook]

Take some time to check over Collision and Overlap Channels, might want to read the docs on them. The colliders on the controller and on the buttons have to both have the correct settings to trigger an overlap

[urban ruin]

so are u sayin that i have to apply the same overlap event on the hands too?

[ashen vector]

not sure what is that.

great, now my app is stuck at loading screen no matter what I do. totally random, yesterday was working fine. 😦

[mighty carbon]

@ashen vector https://github.com/Oculus-VR/UnrealEngine/tags

you have to build it from source

but it might have some improvements and fixes stock UE4 doesn't have (yet), plus it has most recent integration from Oculus

[ashen vector]

mm is it hard to build it? never done that.

[civic brook]

Not events. Click the collider and look through its properties on the right side, you'll find collision channels.
Read up: https://docs.unrealengine.com/4.27/en-US/InteractiveExperiences/Physics/Collision/

[ashen vector]

I used the shipping option for the packaging and now it is working.. I hate inconsistency.

[coral rampart]

I can't get motion tracking to work with the valve index. I followed the guide https://docs.unrealengine.com/4.27/en-US/SharingAndReleasing/XRDevelopment/VR/VRHowTos/MotionController/ but the hands stay at 0,0 and Is Tracking returns false

[ashen vector]

Client is unhappy with the visual quality of the experience, and he is comparing it to a PCVR while I was asked to make a stand alone experience on the quest 2.

I would like to kwon your opinions. unfortunately I can't share screen shots of the app I am building, but it looks fairly good considering is for mobile.

[jovial hamlet]

Are we talking "robo recall unplugged" good or "gorilla tag" good? Quest games can look pretty decent, but top tier pcvr games would of course be better. But yeah, should probably set realistic expectations before starting the project.

Is the client unhappy about something in particular (lighting, level of detail, post process etc) or just the overall feel?

[ashen vector]

It is an archviz experience, the one they are showing as a sample of quality is not even that good, it just have post processes effects and better reflections on materials.

[mighty carbon]

did you show them PC VR first and said it will work on standalone ?

I see this all over the place on social media - people show PC VR stuff (and what's worse, in SM5 instead of mobile quality) and add hashtag OculusQuest..

[ashen vector]

No, I told them that it won´t look anything near that (they showed that to me).. and it actually looks close, just not the things I mentioned before..

any way, any recommendation on migrating from mobile to a PC version file, what should I consider? or is there a way to transform the current file to work on a PC?

thinking to migrate to 4.27 from 4.26 and Raytrace the shi* out of them. :p

[ashen vector]

if someone can point me in the right direction to setup a PCVR project, I will greatly appreciate that.

[mighty carbon]

probably won't work in VR, unless you have 3-way SLI with 3090 😛

[ashen vector]

hehe I know. I was just mad.

[fringe blaze]

Calling "Enable HMD" in my blueprint causes FPlatformMisc::RequestExit to be called 😦

Calling "Execute Console Command" with vr.bEnableHMD 0 does the same thing!

[urban ruin]

hi guys, my pause menu resume button is not working. this is not a good script yes but i juz want it work

i use overlap collision to trigger the button

[urban ruin]

i see, so how do i make a delay resume so the player can prepare themselves back into the game. Fyi im making a rhythm game

[worldly geode]

Hi all, I'm using an oculus headset with vive trackers which works for the most part

however when i try to load UE4 it always loads the headset in the oculus API which makes the vive trackers unavailable

is there a way to force steamvr mode?

[neon geyser]

Hello @hallow knoll, the vr preview is completely broken, do you know if they plan to fix that soon? It's becoming very complicated to debug a vr game

[trail shale]

I've got to figure out a way to trick the engine into think a key has been pressed (the simulate keypress from Victory Plugin doesn't work for me) - so the game will listening for a ON Key Release event - (I'm using a special plugin for a VR application that makes a popup game window that you can use to have a widget, but if you click in the screen, it will temporarily interrupt input for the VR user. So if the VR user is holding down a key and the instructor presses a single mouse click into this other game window, it will immediately drop input (and fire an OnRelease Key Event) - I can put logic into it that can bypass whatever action would be applied to a REAL OnRelease event, but I can't make the system go back to Listening for the OnRelease event again, the VR user literally will have to hit the button again

This is the product I use for my windows - https://www.unrealengine.com/marketplace/en-US/product/vr-spectator-control-window - I've talked iwth the developer numerous times but neither of us know of a workaround - (I had tried some boolean logic to bypass the "on release event" but that's only half the solution) -

TLDR _

1. VR application, with special popup boxes for the instructor to run someone through VR experience
2. Clicking in special popup box immediately steals input, causing VR Player input to drop for a second (which fires OnRelease Events)
3. Input immediately goes back, so VR player doesn't necessarily release
4. Can't figure out a way to make the game engine listen for OnRelease event again, to bypass the original input dropping
   In my application, someone is holding down a radio button and its the main "gameplay" so it's a big deal

and if you click into the popup window they stop transmitting

[alpine sapphire]

I'm working on my first VR test world in Unreal Engine 5 and I'm noticing that when I view it in VR the shadows on large distant objects change as I move my head. I googled around and set the auto exposure settings to manual (with a post process volume with infinite extents) I can post a video if my description isn't clear. Anyone have ideas for what might be going on there? Looks normal when I look at it in the editor, the shadows only start moving once I have the headset on. Thanks in advance!

[trail shale]

tag me please when you get this answer too, I've had similar issues for particles/sprites, I'm sure there is a solution just don't know it

[alpine sapphire]

I actually ran into a thread related to particles but not meshes @trail shale

https://answers.unrealengine.com/questions/18060/lighting-instantly-switches-off-when-out-of-camera.html

that thread may be of use to you

[trail shale]

you have distance fields on I'm assuming

[alpine sapphire]

nope - apologies brand new

[trail shale]

I don't use UE5 as of yet, but in UE4 it's an editor/project settings, just search for it - note you will have to recompile all your shaders in your project I believe

[alpine sapphire]

awesome I'll take a look into that, thanks

[trail shale]

so if you have a lot, you shouldn't "test this" just now

and I could be totally off base - distance fields could have nothing to do with it - check #graphics though replies might take awhile

[alpine sapphire]

haha well with my vague description I'm happy to get any answer at all

I'll try that first and then check #graphics if that doesn't work. Much appreciated

[hallow knoll]

If you're referring to VR Preview "as client" - it's been logged, you can vote on it here to drive momentum: https://issues.unrealengine.com/issue/UE-122229

[neon geyser]

It should be a priority, it's completely broken and its slowing us down a lot.

I discover new issues since:

• run 2 clients crash half of the time
• printing logs on 2 clients, print all of them on one client and the texts are superimposed

And yes the first issue which make debug impossible, we have to make a dedicated server everytime to be able to debug

Those kinds of bugs should definitely not be in an official release

[hallow knoll]

@trail shale it would be difficult to solve your problem, since there's an entire separate window used for that "control window". You can't use that window and have the VR Player provide input at the same time, since the VR preview is required to be "in focus" for input to work. Did you look into how I built a menu for the VR Spectator Camera? There's an example in the VR Spectator sample project I uploaded for the livestream I did in 2019, you can find the project download on the Forum Announcement Post: https://forums.unrealengine.com/unreal-engine/events/1586143

[trail shale]

I did this a few years ago but the implementation is extremely wonky for a true interface - for example, if I want to have the instructor enter some text in a field, I'm literally having to make a text input actor enter in characters via key events, like this:

This window has an event that the developer used that will immediately send back the input to the VR player - since a mouse click is just a quick event, the control window doesn't need to keep the input

and since Windows itself will naturally give input to the new control window, the problem is half-solved

Really, I just need to have a way to tell the engine to "Relisten" to a hardware event, OnRelease

Because when input is sent back to Unreal, the player is physically, STILL HOLDING the button down, but when they actually release, the OnRelease event never fires, because the engine already fired it when the input was lost switching to the control window

I've got the problem half-solved, I can ignore the "OnRelease Event" if it is fired from losing input (just make a small delay on it and check for a boolean that is set on the Control Window when you click it, ("JustClicked) - if that is set to true, don't fire the OnRelease event

[hallow knoll]

I feel you on the "ugh" comment 😄

@neon geyser I can't reproduce "- run 2 clients crash half of the time"

I can't reproduce "printing logs on 2 clients, print all of them on one client and the texts are superimposed" either

[trail shale]

I've had like three different interfaces the very first one which I might still return to was using the unreal web server but I had to create my interface out of HTML and Java code and that's a big UGH

[tired tree]

@hallow knoll some of the new virtual production code framework can actually be re-used for true spectator screen widgets

have a half finished class for it currently

[neon geyser]

reproduced on a new project

Run the VR Preview, as client, with 2 clients

But yes, can't reproduce the crash, its a shared pointer crash that seems linked to my project

I thought it was the engine, because it never happened with a single client

[hallow knoll]

how are you calling that print string logic? I can't reproduce it

[neon geyser]

in the vrpawn

OpenXR is enabled and I'm using a Quest 2

[hallow knoll]

Oh VR Preview

[neon geyser]

yes

[dreamy ivy]

Hey everyone I'm currently doing a live stream showing how to work with UMG inside UE4 for VR. Come check it out.

https://youtu.be/R2uaH2PZxs0

[trail shale]

These are all -in game right? Not the hallowed Spectator Umg?

[quaint mango]

Maybe when the window loses focus, check for the axis value of the button instead? The axis value gets checked every tick, so when the axis value goes to 0 when the user releases the button, just manually call your on release function.

[trail shale]

That's.... A pretty good idea.... If I make the button events tied to an axis I can make the event happen when the axis is nearly zero but not when it is zero - the player would never know, I'll play around with it and report my findings - I know the index controller has a bunch of different access settings even for the things like the trigger and the face buttons have some sensitivity to them hopefully I can use those without having to change it in my case it's the A or b button on the index controller

It will be kind of tricky getting the timing and the ranges involved I'm not sure if when the game comes back to focus when the controller gains input again if it just rapidly rises from zero to the same number again - so for simple numbers as an example 10 is holding down the key completely and zero is letting go completely, I would make my tick event fire so that when button sensitivity equals 8, activate IsHoldingDown event - and also on tick when sensitivity equals zero, check to see if is holding down is set to true, if it is, ignore it... I'll check #blueprint because there is a way to do this axis logic now that you mention it

It's almost like measuring the slope of something and not taking anything that is over a certain limit like a straight line would be

What's the current best practice for detecting movement from the controller the actual tracking of it inside the game? I was using get controller velocity I think but I don't believe I was doing it correctly

[quaint mango]

Have you considered creating a separate game for the instructor to use, and it communicates with the VR application through something like network sockets?

For controller movements, I just read the position/rotation of the motion controller component every frame. Not sure if that would be best for what you're trying to achieve, though.

[trail shale]

Actually I had, years ago - I think 2018 maybe? I had used the Unreal Web Server to communicate to a webpage, loaded on any phone/tablet - It worked "okay" but it had to be built, on the fly, using HTML/JavaCSS, which made updating it, really making any changes, a royal pain -

[reef willow]

If I setup Unreal from Source, how do I set install options, to enable targeted platform Hololens2, etc.

[sturdy coral]

https://forums.unrealengine.com/t/background-processing-of-joystick-gamepad-input-when-not-in-focus/19032/6