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    [Plugin] OBJexporter v3.0 20130131

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    • A Offline
      Alienizer
      last edited by

      One more model that the texture does not export properly but it does with the skp obj exporter...

      Error 404 (Not Found)!!1

      favicon

      (sketchup.google.com)

      Beside that, you rock, so as your exporter, thank you.

      I'm from Mars and moved to Earth to alienize you. Unfortunately, I became humanized.

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      • R Offline
        remon_v
        last edited by

        Great work on the OBJ exporter πŸ˜„
        So if I understand correctly it is not possible to export quad polygons atm?

        Cheers
        remon_v

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        • TIGT Offline
          TIG Moderator
          last edited by

          @remon_v said:

          Great work on the OBJ exporter πŸ˜„
          So if I understand correctly it is not possible to export quad polygons atm?

          Cheers
          remon_v
          No, all faces are 'triangulated' - which is a requirement for many renderers anyway...

          TIG

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          • R Offline
            remon_v
            last edited by

            Yes true, for Octane it is. Why I'm asking is because I want to intrigate SU in my Workflow for architectural modeling. So I want to model the basics in SU and export to Modo, add the organic stuff and render. I just tried accutrans to detriangulate, but it doesn't work for a 100%.

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            • TIGT Offline
              TIG Moderator
              last edited by

              Of course the built-in OBJ-exporter in Sketchup Pro lets you specify triangulation or NOT...Capture.PNG
              Why not get the time limited version and use it for just that [you can run versions in parallel] - the improvements in v8 makes it worth upgrading anyway...
              My tool is intended for those 'Free' users who want some OBJ-export capability - but limiting it to triangulation and meters is the price you [don't] pay πŸ˜‰ ...

              TIG

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              • R Offline
                redlerred7
                last edited by

                I normally export as .X with a similar plugin. I ask: will this make 2k texture image files if you're whole 20k face model is UV Mapped almost completely with projected textures?

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                • TIGT Offline
                  TIG Moderator
                  last edited by

                  If the textures are simply positioned or rotated/scaled one image-file is used for all versions and adjusted within the OBJ code itself, but with distorted/skewed textures passing the 4 required vertex-normals to a 3-vertexed triangle-face is awkward [impossible?] - this tool and the Pro OBJ-exporter make separate image-files for each face with such a distorted textured material. The Pro version does 'reuse' some image-files that have the exact same distortion, but my exporter does not [it makes one image-file for every distorted texture]... SO if you have a complex set of faces with skewed textures you will get a lot of image-files exported... πŸ˜•

                  TIG

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                  • P Offline
                    pcfreak1997
                    last edited by

                    Love it! This is the best I've seen yet!

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                    • M Offline
                      marietjie
                      last edited by

                      hello.thank goodness for clever people

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                      • S Offline
                        Shi-Gu
                        last edited by

                        Works perfectly for me, thankyou so much for this plug-in!

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                        • michaliszissiouM Offline
                          michaliszissiou
                          last edited by

                          I use this plugin a lot. Thank you tig so much. The only other solution is to use SU pro just for the obj exporter.
                          Colada with all the tricks isn't that good.
                          I use to export obj to lot of apps.
                          But:
                          What is happening, and lot of apps confirm it is that this plugin exports double vertices.
                          Impossible to handle them in zbrush or 3dcoat or elsewhere as it is.
                          What I do is to import in blender / edit mode / delete doubles.

                          Or for a perfect export:

                          I use the remove inner faces plugin first of all.
                          Export to blender / remove doubles / recalculate normals outside. (for this last one, inner faces or better non-manifolds shouldn't exist)

                          Textures? Let's forget it, actually I don't need them as going for UV decent mapping.

                          So a question, why double vertices? Is it a double faces SU textures-related problem? Is it possible to have a check to avoid them?

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                          • jolranJ Offline
                            jolran
                            last edited by

                            My guess is that the vertices are not welded.

                            Which means that the faces are not attached to each other(big problem in Z-brush).. It is probably not a bug (like having doublettes of vertices), but rather that each face need it's own vertices.
                            For ex 2 faces on a cube will share vertexpositions, but not being welded.

                            Haven't used this OBJ.exporter. But, I am using Octaine-exporter and havent seen any issues regarding that. Wonder if thoose 2 plugins use the same alogaritm?

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                            • TIGT Offline
                              TIG Moderator
                              last edited by

                              @jolran said:

                              My guess is that the vertices are not welded.

                              Which means that the faces are not attached to each other(big problem in Z-brush).. It is probably not a bug (like having doublettes of vertices), but rather that each face need it's own vertices.
                              For ex 2 faces on a cube will share vertexpositions, but not being welded.

                              Haven't used this OBJ.exporter. But, I am using Octaine-exporter and havent seen any issues regarding that. Wonder if thoose 2 plugins use the same alogaritm?
                              They do use the same algorithms - I wrote both of them πŸ˜‰

                              TIG

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                              • michaliszissiouM Offline
                                michaliszissiou
                                last edited by

                                @unknownuser said:

                                My guess is that the vertices are not welded.

                                Exactly. I checked it. When removing double vertices in blender they become welded.
                                Here a simple skp and the exported tt.obj, a welded in blender obj and a converted to quads one.

                                Same not welded issue is happening to collada exports too (1.4)

                                For compatibility with zbrush, use these parameters under import palette.
                                Screen shot 2011-12-19 at 2.12.30 PM.png

                                My wish could be this:
                                Close holes (make mess waterproof) / Remove innerfaces(non manifolds) / weld vertices / export obj
                                No SU textures / UVs.
                                I can do this manually of course.


                                tt.skp


                                Archive.zip

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                                • jolranJ Offline
                                  jolran
                                  last edited by

                                  @unknownuser said:

                                  They do use the same algorithms - I wrote both of them

                                  Yeah I know. And if I may add, Octaine render export works very well.
                                  At least for my needs. Used it all week without any issues.

                                  @unknownuser said:

                                  For compatibility with zbrush, use these parameters under import palette.

                                  Thanks! πŸ‘ I haven't had any need to use Z-brush for a while but this will come in handy.

                                  @unknownuser said:

                                  weld vertices

                                  Sketchup API is a bit restrictive regarding handling of vertices. There is no weld-option of what I can think of. Which means one would have to restructure the whole code to fix a thing like that. I think there was a weld-plugin at smustard if I'm not misstaken.
                                  I would not mind having some code for welding vertices myself πŸ˜‰

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                                  • michaliszissiouM Offline
                                    michaliszissiou
                                    last edited by

                                    @jolran
                                    Just use blender. No need lo learn anything. Just import the obj/edit mode/[W key]/delete double vertices. exit edit mode and export. This will weld all vertices automatically. It's also useful to convert objs to 3ds for nice SU import.
                                    To eliminate non manifolds/inner faces is more difficult. The ruby plugin works in most cases.

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                                    • TIGT Offline
                                      TIG Moderator
                                      last edited by

                                      Here's v1.7 http://forums.sketchucation.com/viewtopic.php?p=294844#p294844
                                      Material images with no filetype now auto-revert to PNG [possible with Google Earth Snapshots etc].
                                      [This betters Pro OBJ-exporter which fails in this case]
                                      Tolerance for deciding if there is a distorted texture relaxed.

                                      TIG

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                                      • B Offline
                                        Ben Ritter
                                        last edited by

                                        TIG, thank you again.

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                                        • IdahoJI Offline
                                          IdahoJ
                                          last edited by

                                          @michaliszissiou said:

                                          @jolran
                                          Just use blender.

                                          Or Meshlab. http://meshlab.sourceforge.net/ I use this a lot to post process exported .obj files and it works very well. Works on cleaning up manifolds and inner faces as well. Very powerful application. Free too ...

                                          Cheers

                                          "For a moment, nothing happened. Then, after a second or so, nothing continued to happen."

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                                          • W Offline
                                            wongfoon
                                            last edited by

                                            Great work! I have been looking for something similar for a long time.

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