Subdivision Surface Modifier gives unwanted results I've designed a Formula 1 steering wheel. At the back of the real thing, there are screw holes which I want to add.

The steering wheel object has got a Subdivision Surface Modifier turned on. When I make those holes using a cilinder object and Boolean Modifier (Difference Mode), the Subdivision Surface Modifier of course rounds off these holes too. And I don't want that.


Pic 1: Subdivision Surface Modifier gives unwanted results


Pic 2: Subdivision Surface Modifier turned off, these are the holes I want. But I don't want to lose the smoothness of the steering wheel

What am I to do to prevent the Subdivision Surface Modifier to round off these holes?

Thanks for your help!

Rob
It seems like you have applied the Boolean Modifier. Try not to do that before applying the Subsurf Modifier.

You can use the Bevel Shader for additional smoothing.