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    [Plugin] Bitmap To Mesh

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    • G Offline
      Ghalko
      last edited by

      💭 What if you could make an image file that could encode for overhangs?

      Basically it would be a flat image with a curvy perimeter within the rectangle that when smooshed would make a rectangular-based object that would include overhangs, and potentially tunnels (A perimeter within a perimeter, matched with another across the map.) Also a different color perimeter or lack thereof would create sphere or bumpy boulder, or even a planet if your memory can handle it.

      So right now is is black and white for basic z-height. How much information could be encoded using rgb? Red values might indicate what pixels it lines up with, blue indicates order and green indicates height or distance.

      Using the perimeter as an encoding medium for the flattened surface for distance it must go for the final product.

      This was just a random idea I had a few minutes ago while thinking about this plugin, it is possible but the way might not be very straight-forward. The image format might have to be something more than a .bmp. Also a good thing that might come out of this is large scale compression potential. Also organic shapes...

      Bryan

      Arrrggghhh! Why won't it make a face!!! Stupid, no good piece of... Oh look! The line went to the wrong point. Whew... moving on. (My fights with sketchup.)

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      • K Offline
        keyston
        last edited by

        hey, excellent tool, similar to the terrain editor in vue but with your script you can work to a scale.
        2 questions;

        how do you map a texture to a non flat surface in su?
        I usually un soften/smooth edges and muck around with the eyedropper in the material toolbar which is a long process at the best of times, but with the hundreds/thousands of faces generated using this plugin thats not an option.

        I was also wondering if it would be possible to use a bitmap from an object in your scene to generate the mesh, say like you have texture mapped a cube for example, with 1 texture on all faces, you select the object, then generate mesh on all the mapped faces.Possible? too difficult? Just an idea from someone with no idea. 💭 👍 👎 ❓
        Thanks again for the plugin.

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        • K Offline
          keyston
          last edited by

          just found the answer to my first question, projected texture. much easier 😒

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          • thomthomT Offline
            thomthom
            last edited by

            @keyston said:

            I was also wondering if it would be possible to use a bitmap from an object in your scene to generate the mesh, say like you have texture mapped a cube for example, with 1 texture on all faces, you select the object, then generate mesh on all the mapped faces.Possible? too difficult? Just an idea from someone with no idea. 💭 👍 👎 ❓

            It'd be challenging to make the mesh work between faces, but the biggest problem is that it would most likely create a mesh that is all too dense for SketchUp to handle.

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

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            • jamalitoJ Offline
              jamalito
              last edited by

              wow every good I like this plugin
              becouse I am used it in ornamentation
              thnx


              basmah.jpg

              Albert Einstein:
              ((I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.))

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              • B Offline
                Ben Ritter
                last edited by

                Thomas, I love it. I have the mesh made, but struggling to find the right image size to make the mesh workable. I've broken the image down into 6 parts and I have a mesh, but can't get a texture applied. SU crashes.

                I've been able to apply the texture when it's grouped, but the image gets applied rotated 180 deg.

                So, for anyone, is there a way to simplify the mesh first? Would that actually help in applying the projected texture?

                SU8.0.3117, File is 98mb

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                • M Offline
                  Matias Germán
                  last edited by

                  It´s a great plugin. Thanks Thomas. 👍

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                  • thomthomT Offline
                    thomthom
                    last edited by

                    @ben ritter said:

                    So, for anyone, is there a way to simplify the mesh first? Would that actually help in applying the projected texture?

                    If you need a simpker mesh, resample the bitmap you generated it from down. Less pixels - simpler mesh.

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

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                    • B Offline
                      Ben Ritter
                      last edited by

                      I will try the resampling. Any idea why the image gets turned around?

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                      • thomthomT Offline
                        thomthom
                        last edited by

                        @ben ritter said:

                        I will try the resampling. Any idea why the image gets turned around?

                        Got a screenshot? I'm not sure if I understand what you describe.

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

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                        • majidM Offline
                          majid
                          last edited by

                          Dear tomtom, I'ven;t tested your plugin yet, seems to be great and so many thanx, but as a suggestion to reduce faces and improvement, maybe you could add an option for merging co-planar faces

                          My inspiring A, B, Sketches book: https://sketchucation.com/shop/books/intermediate/2612-alphabet-inspired-sketches--inspiring-drills-for-architects--3d-artists-and-designers-

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                          • B Offline
                            Ben Ritter
                            last edited by

                            @thomthom said:

                            @ben ritter said:

                            I will try the resampling. Any idea why the image gets turned around?

                            Got a screenshot? I'm not sure if I understand what you describe.

                            Thomas, thanks for your help, I can't seem to recreate that scenario now, but here's what happens when I try to project the texture above it. I get bits and pieces onto the mesh.


                            huskie.jpg

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                            • thomthomT Offline
                              thomthom
                              last edited by

                              @majid said:

                              Dear tomtom, I'ven;t tested your plugin yet, seems to be great and so many thanx, but as a suggestion to reduce faces and improvement, maybe you could add an option for merging co-planar faces

                              You could run CleanUp afterwards.

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

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                              • F Offline
                                Fletch
                                last edited by

                                Ben, look at my example of roof tile above very closely - you will see that you should use a TINY .bmp... I mean TINY.

                                Then scale the mesh that is generated UP in SketchUp, then PROJECT your texture DOWN onto the face. Be sure the texture position is set to PROJECTED.

                                Remember that BLACK is the lowest point, and WHITE is the HIGHEST point on the final mesh... so make sure to create your displacement map appropriately... a sketch like that is not likely to give you the exact results you want... depending on what you want I guess.

                                Thom Thom, I used your plugin to helpme create this image... thanks again! 👍
                                It is KEY to use a very good displacement map and very small resolution.


                                Pins-Final_Twilight-Render.jpg

                                Fletch
                                Twilight Render Cross-platform Plugin for SketchUp on PC or Mac

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                                • thomthomT Offline
                                  thomthom
                                  last edited by

                                  Fletch - how did you do that?
                                  A plugin that inserts components at vertices?

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

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                                  • Dave RD Offline
                                    Dave R
                                    last edited by

                                    Fletch, that is way cool! It looks like an On/Off button but makes me think it's label could be changed by controlling which pins are up and which are down.

                                    Etaoin Shrdlu

                                    %

                                    (THERE'S NO PLACE LIKE)

                                    G28 X0.0 Y0.0 Z0.0

                                    M30

                                    %

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                                    • B Offline
                                      Ben Ritter
                                      last edited by

                                      @fletch said:

                                      Ben, look at my example of roof tile above very closely - you will see that you should use a TINY .bmp... I mean TINY.

                                      Then scale the mesh that is generated UP in SketchUp, then PROJECT your texture DOWN onto the face. Be sure the texture position is set to PROJECTED.

                                      Remember that BLACK is the lowest point, and WHITE is the HIGHEST point on the final mesh... so make sure to create your displacement map appropriately... a sketch like that is not likely to give you the exact results you want... depending on what you want I guess.

                                      Thom Thom, I used your plugin to helpme create this image... thanks again! 👍
                                      It is KEY to use a very good displacement map and very small resolution.

                                      Fletch, thanks for the reminders. The bmp was a scanned in sketch that I tried. Perhaps not the best to use. Thank you anyway.

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                                      • GaieusG Offline
                                        Gaieus
                                        last edited by

                                        @thomthom said:

                                        Fletch - how did you do that?
                                        A plugin that inserts components at vertices?

                                        Here is a bit of the workflow.
                                        http://twilightrender.com/phpBB3/viewtopic.php?f=26&t=2208

                                        Gai...

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                                        • thomthomT Offline
                                          thomthom
                                          last edited by

                                          @unknownuser said:

                                          The board requires you to be registered and logged in to view this forum.

                                          😞

                                          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

                                            Ah yeah, that is a restricted area for license holders.

                                            Anyway, it's drop.rb. 😉

                                            Gai...

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