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I am fairly new to Blender and I would love some help with this problem. I modeled a bezier curve a couple of days ago, and then wanted to change it.

I know how to connect two vertices of a bezier curve by pressing F to fill it, but how unfill two vertices, such as to disconnect them?

Here are some pictures to help out with my scenario. Picture 1 shows the two vertices I want to fill. Picture 2 shows both the vertices I wish to disconnect. Thanks!

P.s. What is this red line that showed on my curve? (picture 2)

enter image description here enter image description here

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    $\begingroup$ You can select two or more consecutive vertex and press X to delete a segment between them. Red line seems to be just an additional separate segment of your cruve $\endgroup$ – Duarte Farrajota Ramos Jul 4 '17 at 18:01
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To close a curve (make it Cyclic), select the first and last segments and press Alt+C.

To open a closed curve at the press Alt+C again.

To open a curve at any point that is not the start and end of the loop, select two control points and press Delete (or X) and select Delete Segment

enter image description here

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  • $\begingroup$ What do you mean by a "control point"? Because when I tried that, I couldn't control where a gap would open. $\endgroup$ – Luke Jul 4 '17 at 18:51
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    $\begingroup$ As an addition it's possible to select any control point of the curve in order to make it cyclic with Alt+C. Selecting all control points will make cyclic all the curves of the edited curve object. $\endgroup$ – Mr Zak Jul 4 '17 at 19:39
  • $\begingroup$ Luke: First, a control point is the center vertex of the line with three vertices not part of the actual curve (in answer above they're pink/red), the center vertex of the three is chosen to select that control point. A segment deleted with 'x' [delete] is the one between any two adjacent control points. This is all done in edit mode. To have more than two control points, you must have [extruded] additional curves from the end point of bezier curve either when creating the curve, or in edit mode and extruding. $\endgroup$ – Cyberchipz Jul 12 '17 at 14:23

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