Sweep along non-tangential spines

Now you can sweep non-tangentially connected spines. The Sweep dialog has not changed; non-smooth transitions are now automatically detected.

We will sweep along the profile (spine) hightlighted in yellow:

The result (shown in green) has corners, which was not possible before:

These changes affect the Add Material - Sweep and Remove Material - Sweep commands found in the Freeform menu.