Huge visual glitch on viewport and camera preview

Development Rendering
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1

Im re-learning UE5 again (using 5.2.1) and since the start of this project im getting this huge visual glitch whenever I move or update anything on the scene. It changes its behaviour depending on the Anti-aliasing method selected, with some method it stops if I disable Blur, with others it stops after disabling “Separate Translucency”.

Any ideas on how to solve it? It happens even on a new blank project.

I have to NVIDIA 1080 graphic cards on SLI, but never had a problem on UE4, UE5.1 or any games at all.

Thanks.

2

It’s your GPU drivers.

Try either of these

  1. Get the latest drivers

  2. Get the most recent ‘studio’ drivers

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3

Installed both (first one, tested, then the other and tested) and it keeps happening :frowning:

4

How much RAM do you have on the GPU? What model is it?

Obviously you’ve tried restarting the editor?

5

Two GTX 1080 8GB, and yea several times hahaha

6

Hmm… I’m stumped.

I know the engine can only use one of those cards. I guess it could be one is dodgy.

There is a config command

r.GraphicsAdapter 0 ( or 1, 2 etc )

I’m guessing that goes in DefaultEditor.ini or DefaultEngine.ini

Eventually, maybe try swapping them over? ( it’s a longshot )

7

I tried the command, and with 0 I got the same results but with 1 it had to recompile all the shaders and once it opened, the editor was running at 7 fps tops and told me that I couldn’t activate the DirectX12 features (nanite, lumen), so I guess it used my CPU integrated graphics for that (no viewport bug tho hahaha)

I tried to disable all the multi-gpu related options on the Nvidia controll panel for the unreal editor (when I had SLI related issues on games like Destiny or MHW, that solved it) and still no luck.

PS: Do you know if I have to get rid of those shaders it compiled? are they occupying any “space” of sorts on my cpu? I have no idea about that

Thanks for trying to help me tho :')

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8

Hmm, out of ideas here…

The shaders are a sort of FIFO ( first in first out ) kind of storage. So there’s a fixed size, and they get replaced.

If the editor start compiling shaders, and you realize you don’t want that, you can just kill it from the task manager.

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Thanks for trying anyways :slight_smile:

I’ll keep working on my game and if I get too bothered by it Ill downgrade to another version, but ■■■■ this game engines are BIG…

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10

I’ve found a similar issue though a little different. In my case the viewport shrinks and offsets as if it were pushed by a glitch.
It happens to me from 5.3 and with some few projects

CameraViewportIssue5.3
CameraViewportIssue5.31920×1080 141 KB

I’m pretty sure in my case it is a bug, because it happens from 5.3 and I have enough fps

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11

Same issue with updated studio drivers. Since Nov-Dec I noticed this issue, I just live with it but it’s starting to be annoying to work with animations.
My GPU is a 4090…

CameraViewportIssue5.3c
CameraViewportIssue5.3c1920×1080 160 KB

CameraViewportIssue5.3b
CameraViewportIssue5.3b1920×1080 131 KB

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Did anyone get a fix for this?, As I just started getting this, and it’s affecting my production…