While I look on my model by shift+z (in viewport) it looks good:
Render without wired connections to the center
But when I render same scene out it looks like this:
I think this is caused by wrong topology, but still - in preview-mode it looks good, can I do something to make render like 'preview render'?
There is photo of the topology:
After pressing random buttons, and trying to fix mesh - successfully i did it! There was problem with my mesh - gaps caused mirror modifier, and some other things.
At first I was searching for something wired in mesh, found not connected edges, so I selected them.
And scaled them down. pressed s + x (axis of scaling) + entered 0 on keyboard
After scaling them together i removed doubles by selecting all edges press two times a then click w > Remove Doubles
In the end, with selected mesh I pressed Mesh>Clean up>Split Concave Faces...
:)
It does look a topology issue. And the most likely cause is a subdivision surface modifier that has different values for render and preview. Set them to the same value and see if your new render matches your new preview.
The topology issue is either than those faces are not sufficiently planar or aren't adequately controlled with control loops. The way that you structured the central circles, you virtually have a megapole, and the fact that it's not really, not quite a pole doesn't matter. But megapoles are fine, provided their component faces are coplanar, including coplanar control loops.
