Cinema 4D Program Documentation Reference Cinema 4D Basic Features Spline Menu
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

Hard Interpolation

This command switches all selected points to hard interpolation. If no points are selected, all points of the spline are automatically changed to hard interpolation. Hard interpolation means that the tangents of the appropriate points are set to a length of zero.

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This command is not available for B-Splines.