So, the masked blend mode is either on or off. 0 or 1. Along with the opacity mask input. If you want 50% transparency, I believe the blend mode must be set to translucent, and the mask should be plugged into opacity, not opacity mask.
You mean I didn't place the masked on blend mode? I did place the blend mode on translucent then the mask plugged into opacity which works it displays at 40% but it also affects the rest of the mesh. Unless I'm not suppose to have the window pane grouped together with the rest of the mesh. I figured it wouldn't matter…
I have an alpha map that I'm using for my window pane. When importing to unreal I know you're suppose to set the materials under blend mode to masked then plug in the alpha map to opacity mask. It works, it makes the window pane transparent, but I want to make it 50% transparent instead of being 100% so you can see a bit…
Also, technically you would need 2 extra materials... One for the translucent glass parts and one for masked material on the leaves or anything with 0-1 opacity (not shades of gray).