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    [Plugin] GreyscaleMode

    Scheduled Pinned Locked Moved Plugins
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    • Dave RD
      Dave R
      last edited by

      Coen, I couldn't find a way to do this with existing style settings. I'd be happy to learn it though.

      Etaoin Shrdlu

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      • O
        otb designworks
        last edited by

        Thanks Jim!

        Cheers, Chuck

        OTB Designworks is on Youtube

        6 core nMP, 32 gig RAM, (2) D700 GPU's, dual monitors

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        • D
          drewpoeppel
          last edited by

          Thanks a ton this is VERY helpful.

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          • G
            gaucho
            last edited by

            Good stuff Jim, thanks!

            "eat well, stay fit, die anyway..."

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            • S
              sepo
              last edited by

              Nice ...It renders black and white in Podium but keeps the colour of the sky ( i presume ground as well)
              It would be nice to be able to choose say one colour which could stay as colour ...
              Thanks Jim ....

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              • Dave RD
                Dave R
                last edited by

                Sepo, after making the model all grey, right click on a face containing the color you wish to show. Choose Revert color from the menu. 😉

                Etaoin Shrdlu

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                • S
                  sepo
                  last edited by

                  Aha...cheers Dave did not pick that up...Cool. Any chance to actually have more than 10 shades of grey. That would make renders nicer.

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                  • Dave RD
                    Dave R
                    last edited by

                    As I understand it, Jim's method of creating the gray values is to average the RGB values and apply that number to all of the RGB settings. I don't think we're limited to 10 steps as was discussed in the other thread.

                    Etaoin Shrdlu

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                    • S
                      sepo
                      last edited by

                      Actually I think you are correct ... discard the last bit 😉

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                      • utilerU
                        utiler
                        last edited by

                        @unknownuser said:

                        I like it and thanks, but can't this be done using a Style?

                        I agree, Coen. A face style. That way we could save it to styles and scenes.....

                        It wound allow us to 'revert color' in a style / scene though I wouldn't think..... Jim?

                        Just Curious...

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                        • Z
                          zed252000
                          last edited by

                          TY " You're Good !!"

                          Whatever we IMAGINE....

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                          • J
                            Jim
                            last edited by

                            @utiler said:

                            @unknownuser said:

                            I like it and thanks, but can't this be done using a Style?

                            I agree, Coen. A face style. That way we could save it to styles and scenes.....

                            It wound allow us to 'revert color' in a style / scene though I wouldn't think..... Jim?

                            Thanks and you're welcome, everyone.

                            Having it work as a Face Style would be nice. Face Styles can be selected in Ruby by setting an option called the RenderMode. There is just not a way to create a new Face Style that I can see.

                            Like Dave said, I don't think a Style is an option either. There is no control over individual colors in a Style.

                            The idea of saving material changes between Scenes is a completely separate plugin...

                            Hi

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                            • utilerU
                              utiler
                              last edited by

                              You're right Jim, that's the only thing that restricts it from being a 'face style' option. It would be nice to be able to "update scene" individually rather than a ruby that effects the model period....but that takes away from the "reverse color" option....

                              I guess if this was a face style and we wanted to 'spot color' an element, we could set up diferent components and scenes then import into Layout and overlay scenes.....a round about way of doing things though and getting into another topic, 'more than one style in a drawing / file'.

                              Five Star, Jim.

                              Just Curious...

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                              • Z
                                zed252000
                                last edited by

                                👊
                                this is just Awesomely Good.
                                Thanks!

                                Whatever we IMAGINE....

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                                • J
                                  Jim
                                  last edited by

                                  Hi Guys,

                                  A word of caution; utiler has reported he was not able to get the right-click "revert" color option using this plugin. I'm not sure why, but it may mean that the script could "forget" your original material colors. I'm looking into it.

                                  EDIT: There is no danger of loosing the original colors. The error was caused because the default color returns nil when asked for its material.

                                  Hi

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                                  • Dave RD
                                    Dave R
                                    last edited by

                                    Jim,

                                    Thanks for the warning. I haven't seen that problem but I'll keep my eyes open and let you know.

                                    Dave

                                    Etaoin Shrdlu

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                                    • Didier BurD
                                      Didier Bur
                                      last edited by

                                      Hi,
                                      This happens when the face has default material, here is the error message:
                                      Error: #<NoMethodError: undefined method `get_attribute' for nil:NilClass>

                                      because in the code, line 16:
                                      material = sel.material -> equals nil when no material on face
                                      then line 18:
                                      rgb = material.get_attribute("GreyScaleColors", 'rgb')
                                      get_attribute method can be used on nil 😉 and then no context menu.
                                      This would be better:

                                      
                                      if sel.typename == "Face" and sel.material
                                          material = sel.material
                                          ...
                                      

                                      @unknownuser said:

                                      it may mean that the script could "forget" your original material colors

                                      This is impossible IMHO... Attributes on non-geometric objects such as layers and materials, once set, cannot be accessed by the user, lost, erased, or forgotten, unless the script itself does erase them.

                                      Last note: I've been told that (red+green+blue)/3 does not give an exact gray value. What Gimp or PS do to desaturate an image for instance is:

                                      gray_value=([red,green,blue].max + [red,green,blue].min)/2.0

                                      Sketchup::Color.new( gray_value, gray_value, gray_value )

                                      My 2 cts (of Euros 😄 )

                                      DB

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                                      • J
                                        Jim
                                        last edited by

                                        The plugin goes through all in-model materials and changes them to a grey value. The default face color is completely ignored as it does not appear in the in-model materials list, and this is when the material is nil.

                                        So the question is, should the plugin also change the default face color to a grey value?

                                        Does anyone have a preference for how the greyscale value is calculated? If not, I will try the method suggested by Didier.

                                        Thanks, Didier for taking the time to help.

                                        Hi

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                                        • utilerU
                                          utiler
                                          last edited by

                                          I never export images, etc from SU with the default face color. In fact if we did this in grey scale without adding additional color to the scene then grey scale would be a constant....

                                          Here is another nice example of grey scale output. [not mine]


                                          2045982887_section-aa.jpg

                                          Just Curious...

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                                          • Dave RD
                                            Dave R
                                            last edited by

                                            I guess I'm not too picky about how the grays are determined. At this point the average of the RGB values seems to work fine but if there's another option, I'm willing to go that way. As far as the default material being turned to a gray, perhaps it could be left alone? THis would make it easier to identify faces that haven't been given a material.

                                            Etaoin Shrdlu

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