wireframe render over an object with the subdivision surface wireframe? Is there a way to render an object with a subdivision surface modifier with a wireframe which is the original geometry as well as the wires that make the subdivision surface?

Example:


This wireframe here is curved. What if there was displayed the straight wireframe. The wires that make are made by the subdivision surface. Thats what I want to achieve. How to do it?

What I mean is - How to render the curved wireframe (which is the original geometry with the straight wireframe (which is the wireframe the is made by the subdivision surface)?
Rendering curved wireframes:
Blender Internal
You can either use freestyle or a wireframe material, see Rendering with wireframe.
If you use a wireframe material, make sure Optimal display is enabled on the modifier, otherwise all the edges generated by the subserf will be rendered as wires (they won't be curved).

Cycles
To do this in cycles, you could use two scenes, one for the cycles render and another to render the wireframe with one of the BI techniques.
To get a BI wireframe material to render with a transparent background (for combining with a cycles render), just set the second material to Masking alpha:

And set Alpha to Transparent in Render settings &gt; Shading:


Original answer
OP clarified the question, making this no longer relevant. As far as I can tell, that is..
If you want to do this in the viewport/opengl render, just enable Draw All edges in Properties &gt; Object &gt; Display:

And make sure Optimal display is disabled in the subserf modifier: