I’m gathering that it is programmatically difficult to render 3D models transparently in WebGL. (I know nothing about your underlying technologies, so forgive me if that’s illiterate.) Am I correct that this is why CVR currently doesn’t have that option, and that setting a group containing models to 50% opacity has no effect?
By the way, suggestion: separate out the searches in these forums. If I search for “opacity” now, I get Lectora results, which just aren’t relevant.