Landscape DFAO Standalone Problem

Development Rendering
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1

Hi there!

This is my first time on the UE forum, so in case that I am
posting in the wrong section I am really sorry.

I am using UE version 4.13.1 and did some testing with “Distance Field Ambient Occlusion”.
The images below show my problem:
I created a landscape(import heightmap) and everything worked fine in the editor(img1 = immersive view and img2 = play in new editor window) but as soon as I play the game in standalone mode or launch it some “weird black splatters” occur(img3). I have already found threads about this topic but they mostly describe a problem with the scaling of static meshes and not landscapes. Furthermore I am pretty sure it has to do something with the DFAO because the problem does not occur when setting the sky light to stationary. I know DFAO is still in development so it might be a bug?

Any idea/suggestion/workaround/help is appreciated.

Thank you in advance!

112049-editor-immersive.jpg
112049-editor-immersive.jpg1920×1080 204 KB

112068-editor-new_window.jpg
112068-editor-new_window.jpg1920×1080 261 KB

112070-standalone.gif

2

Hi Justus,

I’ve submitted a ticket for this to be investigated. You can track the status here: Unreal Engine Issues and Bug Tracker (UE-37787)

The issue may not be immediately available since we’re updating some things on our back-end for the public issues site. You’ll be able to access it shortly if you need to see or reference it.

As a workaround for the moment, you can use the console command r.AOGlobalDistanceField 0 to disable them while testing. This doesn’t disable DFAO, just the Global Distance Field, which was an optimization method introduced several releases back.

Tim

3

Hi Tim,

thank you! The workaround works like a charm(for the moment).

Justus

5

Hi ,

Thank you for investigating this problem.
Just tested it out, this solution works as well.

Thanks
Justus