Black lines/shadow in Cycles f12 render but not in viewport render? Please see the image below.



I get black lines when I render using F12 but not in viewport.
Is there a way to get the rendered image to be exactly the same as in the view port?

Thank you
If the number of subdivisions for view and render is not the same you'll get different results when using the subsurf modifier.

Make those values the same.



Additionally, you might need to enable smooth shading.