I want to create a smooth round surface onto a rectangle frame...without having strange appearances on the surface of the object. As seen on the pic, the inner circle should fill the whole frame that is around it. How can I achieve this?

enter image description here

  • $\begingroup$ The smooth corners of the mesh could be created with using loopcuts and positioning them just near corners. Sharp edges might be done with mean crease. $\endgroup$ – Mr Zak Dec 18 '15 at 22:30
  • $\begingroup$ I would fill in the rectangle, add some loopcuts to get a decent amount of geometry, then turn on proportional editing with [O] with a spherical falloff and pull the center vertex out. $\endgroup$ – PGmath Dec 19 '15 at 13:18
  • $\begingroup$ Do you want the whole square rounded up like a pillow or just a sphere rising in the centre of the flat square? $\endgroup$ – sambler Dec 19 '15 at 19:35
  • $\begingroup$ Thanks for your answers.I am modeling a Macbook Pro and the surface it nothing like just extruding the rectangle and scale every new extrusion to get a smooth roundish surface. Thats why I came up with the idea to put a circle into the shape of my rectangle. So it is not just building a pillow or a simple dot rising in the middle of the mesh. I will try to use proportional editing though and see where it will get me. Thanks again :) $\endgroup$ – Sebastian Jaeger Dec 19 '15 at 23:30
  • $\begingroup$ @SebastianJaeger The bevel modifier could help see: blender.stackexchange.com/questions/2534/… $\endgroup$ – stacker Dec 23 '15 at 9:46

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