Bad render of smooth surfaces (cycles) I have a blend file where smooth surfaces are somehow rendered in a terrible way (full of black spots, rough edges, bad reflection.. the works). 


If I export the object (fbx) and import into a new .blend file, everything is fine
In non-render modes (Solid / Material mode) everything looks butter smooth


So the issue seems not to be with the object, but rather with the render / other blender settings - but I can not fine anything wrong! 

Any help is greatly appreciated :).

You can find the file &lt;>.

Warner
Change the end clip view parameter (N Panel) to something smaller.
before :
after :