Search in
Sort by:

Question Status:

Search help

  • Simple searches use one or more words. Separate the words with spaces (cat dog) to search cat,dog or both. Separate the words with plus signs (cat +dog) to search for items that may contain cat but must contain dog.
  • You can further refine your search on the search results page, where you can search by keywords, author, topic. These can be combined with each other. Examples
    • cat dog --matches anything with cat,dog or both
    • cat +dog --searches for cat +dog where dog is a mandatory term
    • cat -dog -- searches for cat excluding any result containing dog
    • [cats] —will restrict your search to results with topic named "cats"
    • [cats] [dogs] —will restrict your search to results with both topics, "cats", and "dogs"

Office Holiday

Epic Games' offices will be on holiday from June 22nd to July 7th. During this period support will be limited. Our offices will reopen on Monday, July 8th. 

Metallic decals are transparent even with opacity=1

Deferred decals are going transparent when their material is using metallic>1.

Reppro: - Make a decal material using translucent as decal blend mode. Set it's opacity=1 and metallic=1. Apply this material to a decal actor. ->See that it is more translucent than expected: you can clearly see through. With metallic = 0 it is perfectly opaque. See attached screenshots for reference. The metallic decal is in the top left corner. This bug makes it impossible to use metallic decals.

Product Version: UE 4.16
more ▼

asked Jun 22 '17 at 09:48 AM in Bug Reports

avatar image

herve vazeilles
11 1 2 4

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

2 answers: sort voted first

Hey Herve,

I ran a test on my end and the results I am getting are different than what you are reporting. I think the problem here is that you are adding too many extra variables to the material for testing.

Deferred Decals alt text

Below is a screenshot of my material setup.

Deferred Decal Material alt text

What you could be seeing is either the Screen Fade Size for the decal actor was increased, or your material just has some conflicting inputs which makes your decal appear translucent or render with unexpected results.

Thank you,

Andrew Hurley

more ▼

answered Jun 29 '17 at 09:05 PM

avatar image herve vazeilles Aug 11 '17 at 04:53 PM

Hi Andrew. Thx for your answer. So in the provided screenshot all 4 decals actors are copy of each other. for the first 2 the only parameter that changed was metallic. Both have blend mode translucent, both have all their parameters 100% identical. Just changing the metallic value makes the otherwise 100% opaque decal semi translucent.

Meanwhile team wanted to move to D buffer decals for other reasons.

Dbuffer decals look excellent but dbuffer blend mode have no option that includes mettalic. Is their a plan to include metallic into Dbuffer blend modes ?

Thx. Hervé Vazeilles.

avatar image ForGobbler Aug 18 '17 at 01:39 PM

I have exactly the same problem with transparent metal decals. And I´m also missing the metal slot in dbuffer decals...

(comments are locked)
10|2000 characters needed characters left
Viewable by all users

yep, same problem here with forward shading. would like to have metalic decals too.

more ▼

answered Sep 02 '17 at 11:47 AM

avatar image

31 2 3 11

(comments are locked)
10|2000 characters needed characters left
Viewable by all users
Your answer
toggle preview:

Up to 5 attachments (including images) can be used with a maximum of 5.2 MB each and 5.2 MB total.

Follow this question

Once you sign in you will be able to subscribe for any updates here

Answers to this question