Crash when DBuffer Decals on Fullscreen

UE 4.14 & 4.14.1

  1. Set DBuffer Decals on (Project Settings)
  2. Make a simple Material with “DBuffer Normal”
  3. Add to Scene
  4. Make full Screen with F11 (Scene or Playmodus)
  5. → CRASH

Hi Andreas,

Following your steps I was unable to reproduce your issue. I tried using the “normal” and “dbuffer translucent normal” decal blend modes. I’ll upload a picture of the material graph.

Were you working out of a blank blueprint project? Could you also provide your crash log and machine ID so that I may look at the callstack. Make sure you click on the link highlighted in the screenshot so that it can take you to the .txt file. It will have the same name as your project, that is the log that I’m looking for.

,

Hey Ed,
I made a empty project with “Dbuffer tranclucent normal” and add it to a Mesh (Cube), you have to save your project and restart UE4, then open again and make Fullscreen F11 :wink:

i will post this crash report, thx!

Hey Andreas,

Could you provide the Machine ID or else I can’t track your crash. It is located in the stack window of the crash reporter.

MachineId:D0ECB2BA48C281A4331A128C29C7F618

I still was unable to reproduce your issue. I also didn’t see your crash log in our database. Did you make sure to click send and close? I may need you to submit another crash if our database didn’t catch yours for some reason.

Also, could you provide your dxdiag? To do this open your command prompt and enter dxdiag

When the window appears save all information and attach the generated file in this

Hey Ed,
100% sure, today i sent twice (Epic Launcher as Admin / Firewall off, Virus-scaner off)

Will I get an email with confirmation after sending?
Here is my Upload link to zip (Project + Crashreport):
https://1drv.ms/u/s!At7fq9tiFcsbjVvB4_dCADPD7iT_

Thx,
Andreas

Ah, looking at your steps and project I see that you assigned the material to a static mesh. I’m not sure if you are aware of this but if you drag a decal material into the scene it will automatically create a deferred decal. This is what I thought you meant in the OP when you had the step 3.“Add to scene”.

Applying the material to a static mesh is a pretty important step and this used to be a bug in 14.0 as you can see here is the JIRA: Unreal Engine Issues and Bug Tracker (UE-38709)

I verified that this was fixed in 14.1 myself and am unable to reproduce the crash on my machine in this version. Make sure you are up to date and if you are it is even more important that I get your DxDiag information. This issue may me unique to your hardware and I can’t investigate that without your DxDiag.

Thank you for providing the sample project as that cleared some important things up!

Thank you for your quick reply and sorry for the misunderstanding,
i use the newest UE4.14.1 :wink:

DxDiag link:
https://1drv.ms/u/s!At7fq9tiFcsbjV3F5HxkiucgDIlw

Well, you are using our old recommended drivers. You are free to update to 376.19 Released 12/05/2016 as this is our new recommended driver version for your card.

I don’t see any issues with your hard ware and in some ways it is similar to what I am using. (I have gtx 980).

Your crash isn’t appearing in our database so could you take a screenshot of your crash window so that I may see the stack and compare them to our issue. If your stack is different I may need to enter a new ticket.

Screenshot of crash window

very strange but update to newest driver also did not help :confused:

Unfortunately, your crash window doesn’t have the needed information. You will need to install the Editor symbols for debugging. To do this go to your launcher and click on options(see screenshot).

119522-addoptions.jpg

A window will appear with install options, make sure that “Editor symbols for debugging” is checked.

119523-symbols.jpg

Once that is installed, please reproduce and submit the crash. Also upload a screenshot just in case it doesn’t go through, and include your log.txt file after the crash occurs as well.

Unfortunately I can’t reopen a JIRA report without all the necessary information.

Thank you

Dear Ed, after installing “Editor symbols for debugging” It does not crash anymore ! :smiley: for your Help !

Thank you for the Reply Andreas,

I’m posting this answer so that this thread is marked as resolved. The user’s issue was solved by installing Editor symbols for debugging.

Cheers,