Material Opacity and Roughness?

Hello,
I want to make a Dissolve material and I am using the Opacity, but I also want to be able to set the Roughness of the material. Is there any way to get them both working at the same time?

Hi !

In the material detail panel, find “Lighting Mode” option, you can select “Surface Translucency Volume” or “Surface Forward Shading” to get roughness property.

(The Forward Shading is quite expensive but more accurate)