How to render Wireframe for the entire scene not just one object? Sorry if this is a daft question but in all the tutorials I've watched it just shows how to do a wireframe for one object not an entire scene and I don't really fancy having to select every single object and apply the wireframe mod to it. I know about the wireframe material that I could apply to the scene but that displays it in triangles and I want it in Quads.
Here how would I do this task.


Get 2.8x version
Set up overlays like this:





When setup matcap and cavity as you want:







If the result is not bad, click View -> Viewport render.
If you want wireframe on top of Cycles (or outer) Render Setup viewport like this:







In color management set View transform to default 





When  click View -> Viewport render and compose resulted image over render using multiply.