Extra lines on render

Dear friends,

In wireframe mode some extra lines (edges) are visible and this extra lines are reflected on a render view and make some weird reflexes (blots). In edit mode there are no extra lines.

Edit mode:

Wireframe mode:

Render view:

This lines are obviously result of adding modifiers (boolean).

Please help me to get rid off from this unusual creases. 

  • spikeyxxx replied

    Looks like you're using smooth shading. In that case try checking Autosmooth:

    Maybe you'll need to adjust the Angle to get rid of faceting in other places of your mesh, but those edges should no longer affect the shading.