Hi Burr, but if you have something out of plane what difference is it whether you set the direction to what you thought is the plane normal or whether it is automatically set? Won't you get the same extrusion result in either case?

Currently for something that's not just a line but not planar it will calculate a "best fit" plane for it and use the closest world axis direction to that best fit plane as the direction.

So for example a curve like this which has an out of plane wiggle in the bottom area:



Will get this default extrusion direction of the world y axis direction:




This does not happen for lines though, there is not really the same concept of a "best fit" plane for just a single line, any plane tilted at any angle can contain the same line within it so there isn't any one plane that minimizes the overall distance of the curve to it. So determining an extrusion direction for a line is a different kind of a thing. It just uses the z axis for that case currently.


- Michael