Create a Matcap from Textured Model Sometimes I see great materials, but they are not spheres, so I can't use it directly as a matcap. However, in some instances, the shape is simply enough (cylinder) that I could probably recreate the mesh and project the image onto it.

With the textured mesh, is there a way to generate a matcap?
matcap generator

This is a great matcap generator .blend from Ben Simonds.  I'd imagine you could simply apply a texture to the sphere and render it out.  

Then, apply the matcap to your model using reflection coordinates, and go to textured view mode to see the results.