Decals are bouncing and moving

Development Rendering
, , ,
1

I use Dbuffer translucent ad my decal blend mode and they look good, but when i move my camera they start to bounce and move a bit.

What am i doing wrong?

This is my material:

889×530 81.3 KB

2

stil looking for a solution

3

Same problem here…

4

Hi stefmen and Michael -

Since I am not entirely sure exactly the behavior you are experiencing, I have attached a sample project with some decals in place and wanted you to open the sample project and see if you experience the same bouncing. If not, feel free to edit the sample project to try to replicate the issue and upload it back here again so I can take a look.

Thank You

Eric Ketchum

Sample_Project

5

I’ve found the issue, which is related to not enabling early Z-pass (either None, or decide automatically). When I set it to Opaque Mesh for example, it works fine.

However, doing this does not work in VR, for some reason the left viewport then only shows lights, and particles systems, meshes are not visible anymore.

Basically, I’m trying to implement D-Buffer decal in VR. I got it working using this fix : DBuffer decals in Rift render in single eye - XR Development - Unreal Engine Forums

After this fix, I now see the decal correctly but the “bouncing and moving” behavior occurs.

Enabling early Z-pass fix the issue in normal mode, but in stereo : weird stuff.

Any idea where to look to fix this?

6

Hi Michael -

Unfortunately I do not have another solution for you, it is one of the reasons that the bug listed above in the other AnswerHub post is still open and under investigation. Keep your eye on that AnswerHub post as we will keep updating as we continue to investigate the issue.

For stefmen — Are you also experiencing this issue on an Occulus or other Stereo Headset arrangement?

Thanks -

Eric Ketchum