I am trying to find out how I can apply gradient meshes to complex vector line drawing I created in illustrator CS6. The line drawing was created by not making closed paths on each shape. I drew it as I would have it if was done by hand without over-lapping any of the paths.
So now it appears that I can't use the Gradient mesh tool because it is seeking only closed path segments and no compound shapes. I could trace over each shape to produce closed paths but that would be an awful lot of work.
In the past, I brought the vector line drawing into to Photoshop to do the rendering but want to utilize the power and control of the Gradient Mesh Tool to make a more realistic rendering.