Opacity grey values being ignored?

Development Asset Creation
1

Hey there trying to make a dirty window material via Substance Designer and getting strange results.

ie in SD I have this Opacity map…

DBw9Xbt.jpg
DBw9Xbt.jpg1300×662 125 KB

but when I import it into UE4 I get this result…

6pI75WN.png
6pI75WN.png468×690 297 KB

even though it seems to be using the right Opacity map it seems to be ignoring the grey values and just using black or white even though I have the Blend Mode of the material set to Masked (any other settings don’t work).

98300-screenshot_1.png
98300-screenshot_1.png468×690 298 KB

Am i missing something?

Thanks in advance.

2

Or when I change to Translucent blend mode I lose my Normal, Metallic and Roughness options :frowning:

3

you are using a Masked. As the name suggests, it only knows values of 1 and 0. That’s why grey values are either 1 or 0.

Change your material to translucent and change the Translucency Lighting Mode to
3192feff7964c0f9371566605367351d2fd5ce03.jpeg

this way you can enable roughness, specularity etc.