Hi,
I’m trying to make a translucent material with roughness. But it is greyed out. In tutorials and other videos i see everyone use translucent material with not greyed out roughness, specular,…
Why is it not possible with me? 
Please help
3 Likes
Hello, WixZ,
On the Translucency tab of your material, there is a “Lighting Mode” selector. Set it to “Surface TranslucencyVolume” and you will see the Metallic, Specular and Roughness pins enabled.
Please note that specularity on a translucent material has a lot of limitations and will probably behave different to what you expect, certainly different than what you see on an opaque material. Doing a realistic glass shader, for example, is not as straightforward as it sounds.
All the best.
10 Likes
That fixed it! Thanks a lot! 
Worked for me too, thanks!
Great. I had the same problem. Thanks for the solution.
Thanks man,That help a lot,God bless U
Thanks man,That help a lot,God bless U
So useful, after many attempts of creating the material I needed with translucency and roughness this actually made it work. Thanks a lot!
But even I set opacity to 1, it steal translucent material like 0.5.
This is UE error?
Surface
Adddictive
Default lit