4.6 - DFAO produce artifacts that look like tiles.

Development Rendering
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1

https://dl.dropboxusercontent.com/u/70400220/Unreal-questions/dfao-tile-issue.jpg

Happens on GTX 780 with latest drivers and Windows 10.
This was last change pulled from GitHub: CL 2346051
I tried deleting Intermediate and shader cache from my project but it didn’t helped.
I also tried rebuilding shaders, also without success.

Problems seems to be somehow connected to my assets:

https://dl.dropboxusercontent.com/u/70400220/Unreal-questions/ContentPacks.7z

I can’t find any particular reproducible pattern of why this happen. Sometimes it happen just after loading map, sometimes you have to wait few minutes doing something in editor, and sometimes you have to launch PIE mode for this to happen.

Edit:
When watching stat RenderThreadCommands, there is stat SlateDrawWindowCommand.
Normally it’s about 2-5ms, but when this artifact is starting to show up to jump to 25-35ms.

I dunno if that connected, but it seems odd.

2

Can you hook me up with a map that reproduces this? I tried your test assets but they work fine (the blue inside is a different DFAO bug)

20056-temp.jpg

3

Sure/ But is going to take a while to upload.

Anyway I also tried to use it on clean project. It had break several times, and now I can’t get it to reproduce the result.

Edit:
I copied map I’m uploading to new project and the issue popped out much quicker.

4

Map:

https://dl.dropboxusercontent.com/u/70400220/Unreal-questions/Content.7z

5

It happens for me in that level! I should be able to track it down from here when I get a chance to look at it. thanks for that map.

I noticed that if I do f11 and then f11 again to exit immersive mode, it goes away.

6

Thanks!

I wish good luck, with fixing whatever is causing this! (;