How to modify width of "wire" material type I'm struggling to model my objects into a 90's retro vector style, with the wireframe and low poly look.  

Freestyle won't render in a game mode, and it seems to use a tremendous amount of time just to render simple black outlines around my mesh faces.

It seems if I create two materials, one as "wire" and the other as a surface - it does the trick, however it's only 1 pixel thick, and seems to get lost.  When I pan around different angles, the matte material seems to take over the wireframe material.

Does anyone know how to modify the thickness of that wire attribute in the materials?



I don't want to create a whole different mesh object for the wireframe effect, that the blender previewer seems to handle gracefully by default in preview mode. The render animation seems to do a whole lot of extra work to render frames, and all I want is a retro 90's cartoon, and possibly do something in simulator / game mode.
Apart the Z offset setting shown in another answer, there are at least other 2 ways to render that wireframe: freestyle and wireframe modifier.

The first draws stylized lines over the resulting object after all rendering finish. You can customize the lines styles and where to apply them, like:



The second method can be used with two copies of the object: one gets the usual colored material, the other has the wireframe modifier, and gets another material just for the wire mesh to display, and you have some degree of editing for  the wireframe "style"



here you see how the wireframe is really a separate object, I scaled it up a bit...