Opacity mask always blacks

armabon · March 22, 2017, 3:31pm

Hi,

Since I switch on Unreal Engine 4.15, the opacity pass which I’m use to access from post process material via scene texture are always black.
It is also black in the buffer vizualisation.

I really appreciate any help you can provide.

S-ed · March 22, 2017, 5:22pm

Opacity pass used by SubSurface materials only (always been).
For Translucent materials use SeparateTranslucency.

4.14

4.15

armabon · March 23, 2017, 9:45am

Ok I was using it in the wrong way ^^
Thanks for the quick answer !

Stein_Lotveit · March 4, 2018, 1:13am

Can you say how you are supposed to use it?
I would like to know!

Thanks