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    Unfold.rb script: useful for UV-mapping?

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    • K Offline
      kwistenbiebel
      last edited by

      Hi all,

      I was wondering if it would be possible to use an adapted version of the unfold.rb to do some advanced texturing.

      The unfold ruby basically unfolds an object to a 2D surface.
      Now if we could project our texture (which we edit in Pshop ) to that unfolded 2D geometry, then fold it back to the original form with preservation of textures, we have ourselves an advanced UV-mapping tool ('uv-wrapping'), a feature only the dinosaur apps currently have.

      I would use it to texture free forms or any other form where the traditional projected texture method fails.

      For really complex shapes, a ruby like that probably is way too memory 'expensive', but I can see it work for low to medium poly objects.

      What do you guys think about this? Is this 'code-able'?

      Regards,
      Kwistenbiebel

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      • S Offline
        ScottPara
        last edited by

        Excellent idea. I also would love to see this done. I have to say, I have used the unfold script. Obviously you can unfold and object but can you also refold it too?

        Scott

        Love the fact that some HATE my avatar.....

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        • R Offline
          remus
          last edited by

          Good point scott, i imagine it would have to be part of the script if you wanted to do it accurately.

          http://remusrendering.wordpress.com/

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          • K Offline
            kwistenbiebel
            last edited by

            something like this:
            Texture creation in Pshop, apply textures on flat 2D and fold back to the original.

            http://i140.photobucket.com/albums/r3/kwistenbiebel1/SU/newuv_tb.jpg

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            • urgenU Offline
              urgen
              last edited by

              ...good idea 👍 ...I am assured that it is possible 🎉 😄

              --pupil forever...------

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              • H Offline
                howardhong
                last edited by

                heres sample

                http://i241.photobucket.com/albums/ff294/howardhong/Apple.jpg

                http://archive3d.net/?a=download&id=10214

                Error 404 (Not Found)!!1

                favicon

                (sketchup.google.com)

                http://i241.photobucket.com/albums/ff294/howardhong/apple_su.png

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                • K Offline
                  kwistenbiebel
                  last edited by

                  Howardhong,
                  Those look like imports from another app.
                  I doubt the texturing of the apple is done in SU. Or is it?

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                  • jujuJ Offline
                    juju
                    last edited by

                    The ZIP is supplied with the model in two formats: 3DS and what I think is for ArchiCAD.

                    Save the Earth, it's the only planet with chocolate.

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                    • L Offline
                      lewiswadsworth
                      last edited by

                      Blender has the capability you are requesting, KB. Neatest part is where you can actually use painting tools on the unfolded map and then see them applied in the rendered viewport.

                      I haven't used it in a while, but now that I've been given a little project with a certain degree carte blanche I was planning on testing all kinds of integrations with SU, Blender, and more obscure programs.

                      col sporcar si trova

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                      • K Offline
                        kwistenbiebel
                        last edited by

                        Blender is such a pain. 😳
                        I would love to be able to do things in SU as much as possible.

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                        • L Offline
                          lewiswadsworth
                          last edited by

                          @kwistenbiebel said:

                          Blender is such a pain.

                          Yes, it is.

                          And without a doubt, if you folks ever get your wish for a multi-processing, high-polygon-capable, NURBS-capable, IK-capable, super-dooper-Krytonite-resistant SU, it will also be a pain.

                          col sporcar si trova

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                          • R Offline
                            remus
                            last edited by

                            better not mention that kryptonite resistance thing too loudly lewis, might get people speculating again...

                            http://remusrendering.wordpress.com/

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                            • K Offline
                              kwistenbiebel
                              last edited by

                              @Lewiswadsworth,
                              It's just a wish Lewis...just a wish. 😉

                              I tried Blender, and yes it made me feel as if I miss some million brain cells to get control over it. (or a million spare hours to learn it).

                              Sketchup has a tradition of making otherwise difficult 3D tasks a whole lot easier.
                              So why wouldn't it be capable of making a complex thing like texturing easy?

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                              • H Offline
                                howardhong
                                last edited by

                                uv mapping coordination of .3ds model is reserved when imported to SU.

                                so i think it can be done by ruby script like other program used to do.

                                we all see the impossible things be done with script like ffd or subsmooth.

                                im expectintig somebody can make that kind of script.

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                                • soloS Offline
                                  solo
                                  last edited by

                                  This is an interesting thread, so in a nutshell what you are saying Chris is that say for instance the apple above, you first create the mesh then 'unwrap' it. You then export the 2d unwrapped image to an editor like Photoshop and you create the texture, the completed texture is then imported back into SU and applied to flattened mesh and then when folded the texture is perfectly mapped?

                                  http://www.solos-art.com

                                  If you see a toilet in your dreams do not use it.

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                                  • K Offline
                                    kwistenbiebel
                                    last edited by

                                    @solo said:

                                    This is an interesting thread, so in a nutshell what you are saying Chris is that say for instance the apple above, you first create the mesh then 'unwrap' it. You then export the 2d unwrapped image to an editor like Photoshop and you create the texture, the completed texture is then imported back into SU and applied to flattened mesh and then when folded the texture is perfectly mapped?

                                    Exactly, that's the idea.

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                                    • RichardR Offline
                                      Richard
                                      last edited by

                                      Beibel

                                      Mate yourn the money again! I thought about this the other day, even for simple models like context buildings or for examples like your idea for baked textures from podium. A simple form could be built and textured in SU - unwrapped - image edited to add details such as windows, doors etc and then rewapped to include the added details. Or when modelling with photomatch the unwrapped image could be edited easily to take out detail such as plants etc in the photo as needed to clean up the model.

                                      Seems to me like a must for direct integration of SU for google with regards to google earth purposes!

                                      I must say this really drives home the general need for better mapping functions in SU like spherical mapping!

                                      [BUILTBRAND.COM.AU](http://builtbrand.com.au/)

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                                      • K Offline
                                        kwistenbiebel
                                        last edited by

                                        @richard said:

                                        Seems to me like a must for direct integration of SU for google with regards to google earth purposes!

                                        Just mention Google earth some times more on the forum....maybe that wakes up the G-SU team 😄

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                                        • H Offline
                                          HFM
                                          last edited by

                                          I Must say this idea is briliant, but instead of folding it back together why not try to make it like components? Unfold one, aplie texture and see the effect directly on another...

                                          Would be awesome and very usefull!

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                                          • K Offline
                                            kwistenbiebel
                                            last edited by

                                            Oh yes HFM,
                                            Wonderful idea.
                                            That way it would work like Whaat's subsmooth where you work on the proxy and the subsurface gets updated automatically.

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