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straighten a curled spline

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leaf grow spline based blend
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  • B
    Boo Boo Chicken last edited by Oct 4, 2023, 10:53 PM

    Yikes that looks scary! is there a deformer I could use? I'm looking to do something like the link below but starting with the curl and unrolling it flat. kinda like a coiled snake morphing from an "S" to an "I". is it possible to use pose morph? how do I apply my spline to the XP you submitted

    THX!
    https://youtu.be/bvb6XaVdytE?si=meoGzVED2QPo180J

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    • Dr. Sassi
      Dr. Sassi last edited by Oct 4, 2023, 11:03 PM

      Hi independent-progress,

      No PoseMorph option would allow for that easily. But please share your spline "Start and End" state so I know what you have in mind.

      From straight to spiral, that is easy. The other way around, if you start with a Spline in any shape, that would be the XPresso from above.

      But as usual, we are not in reality here, so we can flip the time and start with a result of something and then later show the start, which your link showed, back and forth.

      I marked the three nodes in the color of the spline example. Drag the Spline onto the nodes.

      All the best

      Dr. Sassi Sassmannshausen Ph.D.
      Senior Trainer, Maxon Master Trainer, L&D - Strategist
      Cinema 4D mentor since 2004, Member of VES, DCS.

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      • B
        Boo Boo Chicken last edited by Oct 4, 2023, 11:07 PM

        here it is

        spline.c4d

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        • B
          Boo Boo Chicken last edited by Oct 4, 2023, 11:09 PM

          I'd need that to be straight

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          • B
            Boo Boo Chicken last edited by Oct 4, 2023, 11:11 PM

            the "straighten" option works but the curly end gets cut off. Here's the updated file with both one curl and the curl straightened

            thx!

            spline.c4d

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            • Dr. Sassi
              Dr. Sassi last edited by Dr. Sassi Oct 5, 2023, 2:58 AM Oct 5, 2023, 2:56 AM

              Hi independet-progress.

              I love to have files; thanks for that. It gives me something to work with, and the guessing is less.

              Please have a look here.

              CV4_2024_drs_23_ANlv_01.c4d

              login-to-view

              The Splines under the Cloner are states of the change the leave has. The Cloner is set to Blend, and the Plain Effector uses the Modify Clones slider to animate this. In this way you can art direct the Leave very precisely.

              The Blend allows only straight movements between two "clones", so I have introduced a few that provide a more organic motion and hide the fact limitation very well.

              I have also reduced the number of Points on the Spline to give each point more power/control over the Spline. Which helps to reduce the work as well, and the smoothness is easier to achieve.

              Enjoy

              Dr. Sassi Sassmannshausen Ph.D.
              Senior Trainer, Maxon Master Trainer, L&D - Strategist
              Cinema 4D mentor since 2004, Member of VES, DCS.

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              • B
                Boo Boo Chicken last edited by Oct 5, 2023, 2:58 AM

                thanks, but I don't see the file.

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                • B
                  Boo Boo Chicken last edited by Oct 5, 2023, 2:59 AM

                  genius!!! thanks so much!!!

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                  • Dr. Sassi
                    Dr. Sassi last edited by Oct 5, 2023, 3:02 AM

                    Thanks for your interest, independent progress, as well as for the lovely feedback!

                    Sorry, uploading the file requires me to save and edit.

                    Let me know if there is anything else.

                    My best wishes for your project

                    Dr. Sassi Sassmannshausen Ph.D.
                    Senior Trainer, Maxon Master Trainer, L&D - Strategist
                    Cinema 4D mentor since 2004, Member of VES, DCS.

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                    • B
                      Boo Boo Chicken last edited by Oct 5, 2023, 3:04 AM

                      I certainly will!

                      thx!

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                      • B
                        Boo Boo Chicken last edited by Oct 5, 2023, 3:20 AM

                        how did u match the exact length of the curled spline to the straight spline? I didn't know one could blend the state of a spline using a cloner!

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                        • Dr. Sassi
                          Dr. Sassi last edited by Dr. Sassi Oct 5, 2023, 4:04 AM Oct 5, 2023, 4:03 AM

                          Independent-progress, I did not measure it, but I used your two Splines as a Guide.
                          You can use this setup here to keep an exact size
                          https://cineversity.forums.maxon.net/topic/679/length-of-a-helix
                          To get the exact length of a Spline

                          Yes, the Cloner has some nice surprises, and that effect can be even Cloned again:
                          CV4_2024_drs_23_ANlv_02.c4d

                          Enjoy!

                          Dr. Sassi Sassmannshausen Ph.D.
                          Senior Trainer, Maxon Master Trainer, L&D - Strategist
                          Cinema 4D mentor since 2004, Member of VES, DCS.

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                          • B
                            Boo Boo Chicken last edited by Oct 16, 2023, 8:02 PM

                            hi dr.sassi!

                            Im trying to apply the workflow above to different splines but I don't understand how to get it working.

                            Can you please advise?

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                            • Dr. Sassi
                              Dr. Sassi last edited by Oct 16, 2023, 8:08 PM

                              Hi Boo Boo Chicken,

                              Can you share the Spline start and end so I can set it up and see the problem?

                              Cheers

                              Dr. Sassi Sassmannshausen Ph.D.
                              Senior Trainer, Maxon Master Trainer, L&D - Strategist
                              Cinema 4D mentor since 2004, Member of VES, DCS.

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                              • B
                                Boo Boo Chicken last edited by Oct 16, 2023, 8:26 PM

                                SHAPES 1.c4d
                                there are 39 shapes

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                                • Dr. Sassi
                                  Dr. Sassi last edited by Oct 16, 2023, 8:37 PM

                                  Thanks for the file, Boo Boo Chicken.

                                  Those are individual Splines, not start or end shapes, because they have different sizes and colors.

                                  I'm not clear what this can tell me. What is your target animation? What I can imagine and what you like to have might differ widely.

                                  Please consider always, I don't know what you don't communicate about your project.

                                  Straighten and animate all 39? From flat to the shape they are in? Then, you need to create 39 times the setup from above.

                                  OR we find a new method; I have no idea right now about this; you need to share a storyboard or something.

                                  Dr. Sassi Sassmannshausen Ph.D.
                                  Senior Trainer, Maxon Master Trainer, L&D - Strategist
                                  Cinema 4D mentor since 2004, Member of VES, DCS.

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                                  • B
                                    Boo Boo Chicken last edited by Oct 16, 2023, 9:02 PM

                                    ah yes...some context would help, sorry.

                                    What I need is to do is apply the workflow solution you shared using the cloner and plain effector, to all of these shapes. I can get the length of the curved spline by hitting Mode < Project Info, then I can create a spline of equal length that's flat that represents the second flat state. so all I need is a way to apply ur workflow to all my shapes so I can make them flat. I can see that u used custom color fields in your example but I'm not sure how to apply your solution to all my splines. sorry if that doesn't make sense...my wife tells me that I'm a bad communicator...hahaha
                                    upspline shapesc4d.c4d

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                                    • B
                                      Boo Boo Chicken last edited by Oct 16, 2023, 9:05 PM

                                      so I guess all I need is a template or to understand how to modify your solution so I can apply that workflow to all my splines

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                                      • B
                                        Boo Boo Chicken last edited by Oct 16, 2023, 9:36 PM

                                        ah I see. I didn't apply your solution properly .

                                        where am I going wrong with this?
                                        My_cv4_2024_drs_23_anlv_01.c4d

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                                        • Dr. Sassi
                                          Dr. Sassi last edited by Dr. Sassi Oct 17, 2023, 3:01 AM Oct 17, 2023, 3:00 AM

                                          Here is your file back, Boo Boo Chicken.

                                          CV4_2024_drs_23_ANlv_51.c4d

                                          I have deleted all the parts from my previous version or the other for the third leave. I hope that it is clearer in that way.

                                          The Blend of the Cloner is a sequence through the Spline that is below the Cloner. It goes from one to the next, based on the Modify Clone setting of the Plain Effector.

                                          There was just one Spline under the Cloner in your file, nothing to blend. I made copies, changed from Bezier to B-Spline, and changed the Interpolation so you get more stable results.

                                          The colors of my previous version were for demo purposes, so you could see that each one provides the central part of a moment, then the next.

                                          All the best

                                          Dr. Sassi Sassmannshausen Ph.D.
                                          Senior Trainer, Maxon Master Trainer, L&D - Strategist
                                          Cinema 4D mentor since 2004, Member of VES, DCS.

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