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    [Question] Is it possible to set the face.normal?

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    • Q Offline
      qpik
      last edited by

      During my research for improving raytesting plugin for SU
      (http://forums.sketchucation.com/viewtopic.php?f=323&t=21077&st=0&sk=t&sd=a)
      I've found out that Ruby supports OpenGL.

      I mixed an example and library from Ruby installation.
      You can run this example in SU (unzip 4 files to Plugins folder).


      Example of Ruby-OpenGL with library.

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      • thomthomT Offline
        thomthom
        last edited by

        and you managed to use that within SU?

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

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        • Q Offline
          qpik
          last edited by

          So far I managed to run the example above. Give me some time πŸ˜„

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          • J Offline
            Jim
            last edited by

            I don't really know, but OpenGL must have hooks, or act as a server because of the existence of software such as 3D Printscreenwhich is able to capture the 3d Sketchup model and export it to some 3dxml format.

            So if the OpenGL data can be "hooked" into, then does the possibility exist to use more OpenGL features not native to SU?

            http://forums.sketchucation.com/viewtopic.php?f=10&t=11943&p=84502&hilit=+shaders#p84502

            Hi

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            • thomthomT Offline
              thomthom
              last edited by

              Isn't that what Adam B does with LightUp? Hook into the SU's OpenGL? All though, from C and not from Ruby.

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

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              • Q Offline
                qpik
                last edited by

                These are the libraries included in Ruby Windows installer:
                http://ruby-opengl.rubyforge.org/.

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                • Chris FullmerC Offline
                  Chris Fullmer
                  last edited by

                  But I'd still like to understand if you are getting this to interact with SketchUP somehow? Can you change what and how SU renders with this?

                  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

                    Is this Windows and OSX compatible?

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

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                    • Q Offline
                      qpik
                      last edited by

                      Yes you can! πŸ˜„
                      I've just found the first thing that changed the view of the model.
                      I typed in the Ruby console glDisable(GL_DEPTH_TEST).
                      To see result try turning the model around.
                      Bear in mind that I'm just starting to learn OpenGL πŸ˜’ .

                      ps. You need to run SU with the files from the zip above in Plugins, except the example.

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                      • PixeroP Offline
                        Pixero
                        last edited by

                        SU keep asking for glut32.dll. It's not in the zip you provided?

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                        • Q Offline
                          qpik
                          last edited by

                          @pixero said:

                          SU keep asking for glut32.dll. It's not in the zip you provided?

                          It didn't ask me. Maybe because I have it in my Ruby installation.

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                          • Q Offline
                            qpik
                            last edited by

                            I suppose so, try it on Mac.

                            Below is not however, only Windows. This seems to freeze SketchUp OpenGL.

                            FindWindow = Win32API.new("user32.dll", "FindWindow", ['P','P'], 'N')
                            GetDC = Win32API.new("user32.dll", "GetDC", ['N'], 'N')
                            GetCurrentContext = Win32API.new("opengl32.dll", "wglGetCurrentContext", ['V'], 'N')
                            CreateContext = Win32API.new("opengl32.dll", "wglCreateContext", ['N'], 'N')
                            MakeCurrent = Win32API.new("opengl32.dll", "wglMakeCurrent", ['N','N'], 'V')
                            DeleteContext = Win32API.new("opengl32.dll", "wglDeleteContext", ['N'], 'V')
                            
                            
                            hwnd = FindWindow.call(0, "Untitled - SketchUp")
                            hdc = GetDC.call(hwnd)
                            hglrc = GetCurrentContext.call()
                            DeleteContext.call(hglrc)
                            

                            I wonder if this is good direction?

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                            • PixeroP Offline
                              Pixero
                              last edited by

                              So where can I get a Ruby install that has it?

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                              • Q Offline
                                qpik
                                last edited by

                                One-click windows installer has it. Here: http://rubyinstaller.org/

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                                • PixeroP Offline
                                  Pixero
                                  last edited by

                                  Anyone getting more than one line to work?

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                                  • Q Offline
                                    qpik
                                    last edited by

                                    I only got to change some OpenGL Server variables like GL_COLOR_MATERIAL or GL_DEPTH_TEST.
                                    I don't know the way to hack into drawing context. I wonder how it is done in LightUp (supposing it is done similar way), maybe a window is layered on top of native SketchUp viewport.

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                                    • Chris FullmerC Offline
                                      Chris Fullmer
                                      last edited by

                                      I don't think Lightup does this. I think it renders materials and bakes them into faces in SU. At least that is my (severely limited and naive) understanding.

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

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