UE 4.9 Rendering Issue

Development Rendering
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1

There is strange artifacts in UE 4.9. It doesn’t appear right away or all the times, but I caught an instance of it and captured it as a video here.

http://d.pr/v/1760f

Extra info:

  • Mac OS X 10.10.5
  • Using binary version of 4.9, not source version.
  • I tried both Nvidia web driver and Mac OS X standard driver. I got the same bug.
  • Project upgraded to 4.9.0 from 4.8.3 using in-place upgrade, not copy upgrade.
2

Hey mindblender,

We try to warn users against the potential harm using the ‘Convert in Place’ option can cause to user’s projects. We always suggest the ‘Open a Copy’ option. This way, if converting and you experience issues like this, you can return to your original copy without losing progress.

The issue seems to be with Motion Blur or Temporal AA. Try turning off motion blur completely within your projects Post Processing Volume, and also setting the AA method to FXAA instead of Temporal AA. This will verify if it is one of these two features of the Post Process Volume.

If you can reproduce this in a new blank project, and can provide me with some simple steps to get the issue to occur on the Mac we have in house, I will be to continue troubleshooting.

Thank you,

3

Hi,

My project is source controlled with Git. I could revert the changes, and copy option causes re-configuration for my development environment :slight_smile:

The issue is fixed by setting AA method from not selected to Temporal AA.

http://d.pr/v/17fmF