Sharpen

Insert sharp edge (crease) to the mesh.

Select a NURBS mesh object. Click and drag over the NURBS mesh object on a View window to add and position both U and V directed creases. Release the mouse button to accept.

Add U directed crease Select a NURBS mesh object. Click and drag over the NURBS mesh object on a View window to add and position a U directed crease. Release the mouse button to accept.

Add V directed crease Select a NURBS mesh object. Click and drag over the NURBS mesh object on a View window to add and position a V directed crease. Release the mouse button to accept.