In the cathedral design that I have chosen, I have a few archways with 90degree corners within a curved wall (reference image inserted below).
I have copied the front profile of the wall segment and converted it to a curve. I used a profile that I had drawn as the Bevel Object in the Curve Object Data. I then altered the mean tilt and rotated the reference curve so that it follows the arch shape correctly. However, I can’t figure out how to fix the top corners. The shape pinches in at the corners, and I haven’t been able to work out an easy way to fix this.
I also tried bridging edge loops between a top profile section and the side and adding in a cut, but that didn’t work out either…
Has anyone had this challenge before, or know of a way to get around it?
Reference image: