4.14 Lighting Scenarios VR Lag

Development Platform & Builds XR Development
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1

Hi, I just wanted to test the new “Lighting Scenarios” Feature in my VR project, where I want to replace a lot of static lighting.

So I implemented it the way suggested in the 4.14 release notes and it works fine but I can see a noticable lag, when loading /unloading the stream levels (also tried different settings for streaming)
The main problem is that if there is a lag in the game, my vive VR headset will stop tracking and I will see the VR background for a second.

Is there a way to make this transition more smooth especially for VR?

Thx,

Michael

2

duunno how make it fast, but you can make fade-in/fade-out in this moments?

3

bump 4.15 the same, I think it’s level streaming load/unload issue.

It’s very frustrating , because on this levels a few static light,

STUFFS, please comment it, i think it’s bug

4

check this Lighting Scenario - Lags on toogle - XR Development - Unreal Engine Forums

it’s not work

5

You probably want to load the new scenario first and uncheck make visible on load so youhave more control on when it appears.

So separately set its visibility to true after you set the visibility to false for the old Lighting scenario

in BP it’s Get Streaming Level > Set “Should be visible”

This way the transition will be fast because they are both loaded already. You can then unload the old lighting scenario afterwards

You may still get a flicker as you switch the visibilty on each but you could hide that with a fade to black.