An entry "Crease Angle" has been added to the Layers tab of the Render buttons, to allow users to specify an angle (between 0 and 180) used for crease edge detection. An edge is considered a crease edge if the angle between two faces sharing the edge is smaller than the threshold. The default value is 134.43 degrees (for backward compatibility). Be aware that a larger threshold leads to a larger number of feature edges and thus a larger memory consumption.