I noticed that when you draw subd friendly curves, there are two extra dots that appear to be a sign of a tangency handle. Is this something that is in the works, that we can change the tangency at those locations?
Hi Gijs -
No, these indicate that the curve is SubD Friendly. There needs to be a very specific relationship between the first and last 3 control points of a curve for it to be SubD Friendly and, therefore, the second control points is locked and cannot be edited.
You can unlock the tangent CP’s by using the command SubDUnfriend.
The curve will remain SubD Friendly until those tangent points are altered: See Screen shot.
The (subD Friendly +) designation indicates that the tangent CP’s are locked.
The sub friendly curve with unlocked cp’s will produce a surface or lightweight extrusion if using the gumball tool. This curve can still be used to create a subD surf that matches the curve as long as the tangency is not broken using SubD loft or subD sweep…etc. as well. I noticed all this while rebuidlding SubD friendly curves to change span counts.
Hello - if you move those unlocked tangency points, the curve will no longer be subD friendly - that is, making it friendly again, unless you are very lucky, will change the shape. Note a subD friendly curve has zero curvature at the ends - moving the tangent point will break that.