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    [Plugin][$] Curviloft 2.0a - 31 Mar 24 (Loft & Skinning)

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    • TIGT Offline
      TIG Moderator
      last edited by

      Benha

      Try to weld[.rb] the two loops into curves [loops].
      Try scaling it up x10 to avoid tiny edges/facets issues [scale down after skinning].
      You will find one loop had a minuscule edge off perpendicular that's not needed - erase that and re-weld the rest...
      Then it should skin OK...

      TIG

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      • B Offline
        benha
        last edited by

        Hrm...

        Still not working:
        Found and removed a stray edge
        Scaled up by 10x
        Welded curves together
        Same failure state

        Revised file attached. Still baffled.

        Back Contour.skp

        @tig said:

        Benha

        Try to weld[.rb] the two loops into curves [loops].
        Try scaling it up x10 to avoid tiny edges/facets issues [scale down after skinning].
        You will find one loop had a minuscule edge off perpendicular that's not needed - erase that and re-weld the rest...
        Then it should skin OK...

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        • Dave RD Offline
          Dave R
          last edited by

          Works fine here using Loft by Spline


          Back%20Contour.skp

          Etaoin Shrdlu

          %

          (THERE'S NO PLACE LIKE)

          G28 X0.0 Y0.0 Z0.0

          M30

          %

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          • B Offline
            benha
            last edited by

            Sorry. Must not have been clear. Wrong way. I'm trying to loft the two surfaces bounded by the loops, not the space between them.

            @dave r said:

            Works fine here using Loft by Spline

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            • Dave RD Offline
              Dave R
              last edited by

              I see. The two sets of curves are a red herring. πŸ˜„

              I wonder if you might be better off with a different tool for what you want to do.

              Etaoin Shrdlu

              %

              (THERE'S NO PLACE LIKE)

              G28 X0.0 Y0.0 Z0.0

              M30

              %

              1 Reply Last reply Reply Quote 0
              • B Offline
                benha
                last edited by

                What's weird is that I originally skinned something exactly like this. And now I'm trying to reconstruct it. And it's not working... πŸ˜•

                @dave r said:

                I see. The two sets of curves are a red herring. πŸ˜„

                I wonder if you might be better off with a different tool for what you want to do.

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                • fredo6F Offline
                  fredo6
                  last edited by

                  @benha said:

                  Hrm...

                  Still not working:
                  Found and removed a stray edge
                  Scaled up by 10x
                  Welded curves together
                  Same failure state

                  Revised file attached. Still baffled.

                  The contour is made of a single curve with no sharp angle. Curviloft Skinning does not know where to cut the contour in 4 pieces. In such cases, you simply need to draw dummay segments, for instances at the corners.
                  Skin contour - dummay segments.png

                  Then, you select each of the 4 portions (click on it, then click in empty space).

                  And you apply skinning.
                  Skin contour.png

                  Fredo

                  PS: I also suggest you simplify a bit the contour to have a more regular spacing of the vertices, and thus obtain a more balanced mesh

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                  • B Offline
                    benha
                    last edited by

                    Argh. Still not working.

                    I added dummy segments, and now when I enter the skinning tool it does take four clicks to select everything. The sections break at the dummy segments. So that's progress.

                    But when I "click to validate" the contour just turns purple and nothing happens.

                    Might this be related to the fact that I'm on a Mac?

                    -Ben

                    @unknownuser said:

                    The contour is made of a single curve with no sharp angle. Curviloft Skinning does not know where to cut the contour in 4 pieces. In such cases, you simply need to draw dummay segments, for instances at the corners.
                    [attachment=1:1fqlcg7n]<!-- ia1 -->Skin contour - dummay segments.png<!-- ia1 -->[/attachment:1fqlcg7n]

                    Then, you select each of the 4 portions (click on it, then click in empty space).

                    And you apply skinning.
                    [attachment=0:1fqlcg7n]<!-- ia0 -->Skin contour.png<!-- ia0 -->[/attachment:1fqlcg7n]

                    Fredo

                    PS: I also suggest you simplify a bit the contour to have a more regular spacing of the vertices, and thus obtain a more balanced mesh

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                    • fredo6F Offline
                      fredo6
                      last edited by

                      Your dummy segments may not be well placed (note that the contour curve is placed exactly on top of the group which forms the border surface)
                      In any case, you can first select the contours and dummy segments, and then call Curviloft Skinning.
                      Also, if you explode that group, you'll be more confortable
                      It works for me

                      Fredo

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                      • B Offline
                        benha
                        last edited by

                        Thanks for the help. Still can't make it work, but I think it's time to give up and call it a day.

                        I'm guessing it's something unique to my machine/configuration or whatever. I've tried about 20 different approaches / placements of dummy segments / etc and it never works. Very odd.

                        Anyway, thanks again.

                        @unknownuser said:

                        Your dummy segments may not be well placed (note that the contour curve is placed exactly on top of the group which forms the border surface)
                        In any case, you can first select the contours and dummy segments, and then call Curviloft Skinning.
                        Also, if you explode that group, you'll be more confortable
                        It works for me

                        Fredo

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                        • fredo6F Offline
                          fredo6
                          last edited by

                          @benha said:

                          Thanks for the help. Still can't make it work, but I think it's time to give up and call it a day.

                          Here is the model with the Skinning, if this can help you to progress
                          Back%20Contour.skp

                          Fredo

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                          • B Offline
                            benha
                            last edited by

                            Ah! You're a star. Thanks a TON!

                            Here is the model with the Skinning, if this can help you to progress
                            [attachment=0:1m74sant]<!-- ia0 -->Back%20Contour.skp<!-- ia0 -->[/attachment:1m74sant]

                            Fredo[/quote]

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                            • jgbJ Offline
                              jgb
                              last edited by

                              I just had the time to install the new version of Curviloft (with Quad faces) and
                              BOY AM I IMPRESSED 😍 😍 😍 😍

                              It was great before, but with Quads it is absolutely great. No more tiny surface fragments to clean up (so far as I see). And way FASTER to boot.

                              I'm just getting into a total revamp of my big airplane projects' fairings, and this new version will make that a piece of cake. Compared to the old way (manual meshing and tweaking) that took days to get a fairing right, the older Curviloft reduced that to a few minute to generate the fairing, and a few hours to cleanup the surface fragments that simply added more lines and faces than needed. I was happy then.

                              The new version should not need more than a few minutes tweaking if needed at all.

                              Thanks again Fredo. β˜€ β˜€ β˜€


                              jgb

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                              • jgbJ Offline
                                jgb
                                last edited by

                                Fredo - We have A problem 😲

                                The attached model is an extracted edge of a fairing. It should be a single face and all flat.

                                When I loft it, I get either a black face then just an empty group (thought that was fixed ❓ ) or nothing happens, but an empty group forms anyway. If I manually join verticies it will form a flat face.

                                There are no edge fragments, or gaps. The faces perpendicular are all properly formed, as well as the opposite edge to this one.

                                There are also no "errors" (colored lines) appearing, so I cannot find the problem.

                                I've had a few like this and it was easier to manually face them, but I figured you shold take a look at it.

                                Won't form a face.


                                jgb

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                                • B Offline
                                  benha
                                  last edited by

                                  Interestingly, this file skins fine for me, but what you're describing is exactly like the problem I was having above.

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                                  • irwanwrI Offline
                                    irwanwr
                                    last edited by

                                    @jgb said:

                                    It was great before, but with Quads it is absolutely great. No more tiny surface fragments to clean up (so far as I see). And way FASTER to boot

                                    i wish i could use Quads too 😞
                                    i agree that this plugin is really kind of wizard thing πŸ‘ πŸ˜†

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                                    • M Offline
                                      mac1
                                      last edited by

                                      FYI for what it is worth:
                                      Using the skinning mode and selecting the closed loop, by left to right in context select or double click on one, then selecting the green check mark skins ok each time. If I try to select one edge, right click to bring up the context menu and select extend selection to all connected I have some problems but maybe an operator error? Note: At the steep part of the curve some triangulation is none by program to get face formation.

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                                      • jgbJ Offline
                                        jgb
                                        last edited by

                                        @irwanwr said:

                                        i wish i could use Quads too 😞

                                        I don't understand what you mean. Quads are just a better method to calculate and display faces on a surface. You don't actually "use" quads specifically. The pluggins (JPP, Curviloft, etc) use them when activated.


                                        jgb

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                                        • jgbJ Offline
                                          jgb
                                          last edited by

                                          Mac1

                                          Neither method you suggest works for me.

                                          I've noticed that Curviloft tends to fail when I want to form a totally or very nearly flat surface.

                                          It also seems to be overwhelmed by large complex surfaces. It goes all rainbow on me but if I just select smaller portions without any edits, the smaller surfaces form nicely. When I then explode all the subsections, it forms 1 complete surface. A bit more work, but less aggravating than trying to find the non-existent "problem".

                                          But all said, it is a plugin I simply CANNOT live without.


                                          jgb

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                                          • irwanwrI Offline
                                            irwanwr
                                            last edited by

                                            @jgb said:

                                            @irwanwr said:

                                            i wish i could use Quads too 😞

                                            I don't understand what you mean. Quads are just a better method to calculate and display faces on a surface. You don't actually "use" quads specifically. The pluggins (JPP, Curviloft, etc) use them when activated.

                                            i meant the TT Quad Face tool, it seems so good so sophisticated.

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