Regression in DBuffer Decals material preview


here is a sample project

The project is created in 4.11 engine version.

  1. Download blank 4.11

  2. Open Material’/Game/Decals/Winter/Materials/m_dc_win_IceSpot_01_01.m_dc_win_IceSpot_01_01’ asset

  3. Observe that material is rendering correctly.

4.13 part:

  1. Then download blank 4.13.1, open this project and navigate to:

  2. Edit->Project Settings->Rendering and set DBuffer Decals to true

  3. Restart the editor

  4. Open the same material as above

  5. Observe that material is broken.


Hello ,

I downloaded your project and am getting almost opposite results you are reporting. When I opened the 4.11.2 version I got the results below without changing any settings.

I decided to enable the Dbuffer Decals as it was disabled by default when I opened the project within this engine versiont. After restarting and compiling the shaders the decal rendered as expected. I then upgraded the project to 4.13.1 and got the same expected results.

I would try restarting your project one more time and also make sure you don’t have any extra settings checked/unchecked causing the decal to no longer render.

Let me know if you have further questions or need additional assistance.


2 images are better than my description:)
Good 4.11

Bad 4.13

Thanks for the clarification. I was able to confirm what you are reporting and have gone ahead and entered a bug report for the issue. You can track the issue following the link below on our new Public Issues Tracker.


Once the issue has been addressed by our engineers, the fix will be added to the release notes for fixed issues within an upcoming full engine or hotfix release.

Let me know if you have further questions or need additional assistance.


This is still an issue in 4.16.2