I wonder is there an easy way to render an object in the scene without its materials to get a rendering of a plain shape? By "without" I mean somehow hiding the materials that are applied to the mesh without removing them. The only option that I thought could help was "Traceable". However, after I unchecked Traceable the materials still show on the object after rendering. The hard way to do this is to remove all of the materials but I wonder if there is an easier solution to this?
In summary, I want to go from this:
To this, without removing the materials: