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    [Plugin] Color by Z (Updated August 27th, 2009)

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    • PixeroP Offline
      Pixero
      last edited by

      The script idea I played with was to apply different colors based on slope and the side projected gradient doesnt work for that. 😞
      Texturing is another area in SU we could wish for improvements in.

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      • Chris FullmerC Offline
        Chris Fullmer
        last edited by

        Ahh, tis true! If you wanted to do slopes as gradients, then you're out of luck. The only possible workaround I can think of is to use the subdivide scrip to subdivide faces into a tone of smaller faces. Then apply a single color to each face. Then somehow turn the whole thing into a single material and re-apply it to the pre-subdivided mesh. But I have a feeling that is 1. beyond the scope of Ruby and 2. probably just not very efficient and would be better suited for another 3d modeler? Maybe someone like Al's team could write an entirely separate app that reads the SU model and does all that work with the UV and gradients, and then sticks the model back into SU.

        Chris

        Lately you've been tan, suspicious for the winter.
        All my Plugins I've written

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        • JClementsJ Offline
          JClements
          last edited by

          Hi Chris, again.

          Other ideas:

          1. enable the script to "remember" the settings last used during the same SU session.
          2. save the settings in to a library (each "style" would be saved a record in a text file).
          3. call up the color wheel dialog

          And OMG, is Mt Hood going following in the foot steps of Mt St. Helens?
          Mt Hood gone Active Vulcanic AGAIN.jpg

          EDIT: 14 Feb 09
          Here is the skp , Chris. It may be that I didn't input the same values for the two terrains. It is geolocated, it will take you back to Mt. Hood in GE.


          Mt Hood gone Active Vulcanic AGAIN.skp

          John | Illustrator | Beaverton, Oregon

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          • JClementsJ Offline
            JClements
            last edited by

            Chris, .skp was added to my previous posting.

            John | Illustrator | Beaverton, Oregon

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            • Chris FullmerC Offline
              Chris Fullmer
              last edited by

              Cool, thanks John. I see it now. There is some overlapping geometry that I couldn't see in the image. That accounts for the coloration working the way it is. Thanks John!

              Chris

              Lately you've been tan, suspicious for the winter.
              All my Plugins I've written

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              • X Offline
                xrok1
                last edited by

                maybe a better direction for this would be to create a plug that creates 'real' gradient textures based on the height of geo in a scene. they could then be projected manually or auto matically based on a plane that is created with a similiar prcess to a section plane?

                “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                http://www.Twilightrender.com try it!

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                • Chris FullmerC Offline
                  Chris Fullmer
                  last edited by

                  THats a nice arrow their John. It took me a while to find it on the image, but once I clicked on the image to expand it, it all made sense. Very nice. And your mountain looks great too! It works out really nice with white at the top that changes quickly into a brown and works its way down to give a nice snow capped mountain appearance 😄

                  Chris

                  Lately you've been tan, suspicious for the winter.
                  All my Plugins I've written

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                  • X Offline
                    xrok1
                    last edited by

                    @daniel s said:

                    SU7 has an option called Combine Textures (The Combine Textures menu item combines separate textures on adjacent co-planar faces into a single larger texture. This feature also, optionally, removes edges between co-planar faces to reduce the polygon count for the model as a whole. Context-click on multiple selected parallel faces, with at least one face having a texture, and select Combine Textures to create a texture which is unique to that set of faces.)
                    This is a great tool, but it will be more usefull if it`s extended into curved surfaces. This Color by Z or the Tools On Surface are examples of plugins that will be benefit.

                    Daniel S

                    how can you get to this tool? i can't find it, tried RC menu?

                    “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                    http://www.Twilightrender.com try it!

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                    • Chris FullmerC Offline
                      Chris Fullmer
                      last edited by

                      Here's a video on using combine textures.

                      [flash=727,635:2s0w7uxd]http://www.chrisfullmer.com/chrisfullmer/forums/combine_textures.swf[/flash:2s0w7uxd]

                      Chris

                      Lately you've been tan, suspicious for the winter.
                      All my Plugins I've written

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                      • X Offline
                        xrok1
                        last edited by

                        thats sweet. thank you very much for that. coincidentally you just answer a another question, i was trying to figure out how to make a painted wall texture for skindigo, but i couldn't figure out how get SK to UV map surfaces with just white material on it so i could apply displacement. now after watching your vid i figure i can just make unique my material then it should be uv'ed.

                        thank you

                        “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                        http://www.Twilightrender.com try it!

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                        • L Offline
                          linea
                          last edited by

                          Good idea Chris, thanks

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                          • urgenU Offline
                            urgen
                            last edited by

                            ...nice idea Chris! 👍 😄

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

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                            • soloS Offline
                              solo
                              last edited by

                              Cool and thanks, this should come in handy.


                              http://img13.imageshack.us/img13/6384/colorfulkk4.jpg

                              http://www.solos-art.com

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

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                              • JClementsJ Offline
                                JClements
                                last edited by

                                It never occurred to me to project a gradient color onto a terrain, great idea.

                                Mt Hood gone Active Vulcanic AGAIN 2.jpg

                                However, I do project gradient transparency along with gradient color onto a single surface to make arrow-shaped objects and "swooshes" that indicate direction or motion.

                                Gradient Arrow in SKP.jpg


                                Mt Hood gone Active Vulcanic AGAIN 2.skp


                                Gradient Arrow.skp

                                John | Illustrator | Beaverton, Oregon

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                                • Chris FullmerC Offline
                                  Chris Fullmer
                                  last edited by

                                  Solo, was that made with the plugin or with the image gradient method?

                                  Chris

                                  Lately you've been tan, suspicious for the winter.
                                  All my Plugins I've written

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                                  • GaieusG Offline
                                    Gaieus
                                    last edited by

                                    Hi Chris and all,

                                    I haven't been able to drop by the Ruby Dept for days so I might be a bit late... Do you know however Didier's "paint_altitude_faces.rb" by any chance? It works kind of similar (only with the gradients of the same colour):
                                    http://www.crai.archi.fr/RubyLibraryDepot/Ruby/em_ren_page.htm
                                    There's also a demonstration video supplied.

                                    All in all, yours is a very cool plugin with this texture gradient! 👍

                                    Gai...

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                                    • Chris FullmerC Offline
                                      Chris Fullmer
                                      last edited by

                                      Yeah, I have a tendency to not look around to see if similar scripts exist before starting one (I think there were already about 4 version of a random pushpull script before I wrote mine, for example). Mostly because I'm still just writing these for the experience and they each teach me a new little portion of the Ruby SketchUp API. But I definitely need to watch out for that before I embark on any seriously large and in-depth projects I suppose!

                                      So I tried to check his out, and its only painting black faces on my model regardless of what color I select. I suppose it might be a units thing? but I changed my model units to metric with no luck. Also the avi file wouldn't play for me so I couldn't see it in action. I even tried playing it with mPlayer, which generally plays anything you throw at it. But that didn't work. It came out all garbled.

                                      Chris

                                      Lately you've been tan, suspicious for the winter.
                                      All my Plugins I've written

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                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        @chris fullmer said:

                                        So I tried to check his out, and its only painting black faces on my model regardless of what color I select. I suppose it might be a units thing? but I changed my model units to metric with no luck. Also the avi file wouldn't play for me so I couldn't see it in action.

                                        Ditto.

                                        Thomas Thomassen — SketchUp Monkey & Coding addict
                                        List of my plugins and link to the CookieWare fund

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                                        • GaieusG Offline
                                          Gaieus
                                          last edited by

                                          Okay guys, don't ask me. I just remembered seeing the ruby in the list about two ears ago (never tried). Maybe it has problems with SU 6+? The video plays to me and Didier uses a blue colour for the demo.

                                          Gai...

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                                          • C Offline
                                            chan
                                            last edited by

                                            This is just great Chris. Thank you so much.
                                            I deal with many diffrent urban projects and
                                            I clearly see that Skechup with smart programmers like yourself
                                            has great potential in evolving into sth not only for visual outcomes but
                                            for urban analysis.
                                            Color by Z is already a great start isn't it?
                                            Could this kind of approach broadens to....
                                            **- analyze daytime shadow coverage ratio

                                            • density analysis(maybe by comparing # of lines certain area contains)
                                            • open view condition by z**
                                              and so on and so on...

                                            If anyone is interested, I would love to discuss about it(just can't program it ;( ).
                                            Thanks again Chris.Untitled.jpg

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