> Of course an angle setting would be fine or a subdivision max. length of polygons or edges...

Right now the slider does control an angle setting. When you move the slider down, the angle increases, and moving it up decreases the angle.

I don't really think that you'd gain very much by having a text entry box to type the angle number in instead of using a slider for it - just the way that the angle works, the number itself is not so important you have to try it and see the results and then change it slightly. This type of "slight change" workflow is just easier to do by dragging a slider slightly to the left or right instead of repeatedly typing in 15.0 then 15.1 then 15.2 ...

But I have been thinking of adding some controls in addition to the slider for some other parameters which would be numeric, such as a maximum distance deviation between the polygon edge and the surface...

- Michael