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Anonymous
February 12, 2018

[GearVR] 3D widget performance jittery/sensitive and often 'sticks' in 4.19

I'm testing on 4.19 P4 binary and the 4.19 Oculus branch based on the same version, and the issue from 4.17 is back making 4.19 (like 4.17) un-usable for gearvr:

https://forums.oculusvr.com/developer/discussion/56090/gearvr-3d-widget-performance-degregation-in-4-17

Any chance of getting that fixed before 4.19 is finalized?

Example test project attached with 3 widgets attached - noticed if you move your head left and right even at a medium speed the widgets stick make you feel sick even though you are getting 60FPS

4.18 version of the same project by comparison has no such issue (also attached - notice smooth as silk in comparison!)
Please note: 4.17 had the same issue so something must have been re-introduced?



This topic has been closed for replies.

6 replies

motorsep
Inspiring
February 12, 2018
I render my widget in the stereo layers and I didn't notice any performance issues in 4.19p4.. I didn't specifically move head left and right though as I mostly paid attention to fps counter.
Anonymous
February 13, 2018
Yeah this is for the normal 3D widget not a stereo layer.
motorsep
Inspiring
February 13, 2018

aussieburgerVR said:

Yeah this is for the normal 3D widget not a stereo layer.


I see. Out of curiosity, why would you want to use 3D widget as-is, without Stereo Layer ? (since quality would be worse when not used on a Stereo Layer)
Anonymous
February 13, 2018

motorsep said:


aussieburgerVR said:

Yeah this is for the normal 3D widget not a stereo layer.


I see. Out of curiosity, why would you want to use 3D widget as-is, without Stereo Layer ? (since quality would be worse when not used on a Stereo Layer)

Main reason was when the project was originally done the Stereo Layer feature did not exist. There is an extensive amount of 3D widgets so replacing them all will take some work.

Secondary reason having not tried them I was never sure if they were as "real-time" as a normal widget not being in a Stereo Layer, ie handling widget animations etc.
Anonymous
February 15, 2018
I just tested again on the new 1.23.0 integration and the problem has been fixed!

I noticed in the release feature list there:
https://forums.oculusvr.com/developer/discussion/62121/unreal-engine-4-integration-1-23-0-released-february-13th-2018#latest
New Features
  • A
    latency reduction for late-update has been integrated into this
    release. This is particularly helpful for Oculus mobile platforms.
I guess this fixed it from 1.22.0

@imperativity will the Unreal 4.19 final release be getting this 1.23.0 update?

Anonymous
February 23, 2018

imperativity said:

@aussieburgerVR

I'll append this to the internal task and get some clarity for you. Thanks!

EDIT: 4.19 is locked on SI1.21 and will never upgrade to 1.23. So it looks like we won't be able to address this in previous versions.


Damn - thank you @impertivity for the update at least the Oculus 4.19 branch is working. I assume there is a good chance 4.20 would get at least 1.23? Do you have any clarity on that?
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