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[Plugin] Export 2d with Alpha

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  • T Offline
    thomthom
    last edited by 24 Jan 2013, 16:23

    Strange values?

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

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    • F Offline
      Frederik
      last edited by 24 Jan 2013, 17:13

      Lately I've experienced that when I export a scene with transparency, in a resolution 4000x3000, I can see the transparency using the standard Windows Image viewer, however, I'm unable to open the png-file in PhotoShop...
      It's just saying that it's unable to parse the file... πŸ˜•
      Also... I can't see the image if I try to use XnView...

      Cheers
      Kim Frederik

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      • T Offline
        thomthom
        last edited by 24 Jan 2013, 17:17

        Sample file?

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

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        • F Offline
          Frederik
          last edited by 24 Jan 2013, 19:24

          Here you go... πŸ˜„
          (NB! 37.8Mb) https://dl.dropbox.com/u/9887081/Test-for-Thomthom.png

          Like I said, I'm able to open and see it with the standard Windows Image browser and I can open it in i.e. Firefox as well, but not in Adobe PhotoShop CS5.1 and XnView also have an issue when trying to see it... 😐

          Cheers
          Kim Frederik

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          • F Offline
            Frederik
            last edited by 24 Jan 2013, 19:31

            OK...
            I found a way to make it work...
            Open the file with Microsoft Office Picture Manager and export it to a new png-file...
            The size will reduce from 37.8Mb to 1.58Mb and I can't see any quality loss... πŸ˜’
            Check this https://dl.dropbox.com/u/9887081/Test4Thomthom2.png
            I'm able to open the new file in PhotoShop...

            Edit: Well... It seem that I need to do something before it works, like use the crop tool and then export it...
            The result is that the file size reduces significantly and then I'm able to open it in PhotoShop without any quality loss...
            https://dl.dropbox.com/u/9887081/Test4Thomthom3.png
            Strange... πŸ˜•

            Cheers
            Kim Frederik

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            • T Offline
              thomthom
              last edited by 24 Jan 2013, 20:47

              37.8MB for a 4400x2250px PNG image??? That ain't right.

              Inspecting your file in a hex editor and it's full of NULL bytes. :s
              The plugin leaves the writing for the image to SketchUp. And I've never seen this before.

              My first thoughts are that this is a issue local to your machine. Are you for instance saving to a network drive etc?

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

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              • T Offline
                thomthom
                last edited by 25 Jan 2013, 08:35

                I don't know what it is to be honest.
                Does it happen to all models?
                Do you have another computer nearby where you can try?

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

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                • F Offline
                  Frederik
                  last edited by 25 Jan 2013, 08:35

                  @thomthom said:

                  My first thoughts are that this is a issue local to your machine. Are you for instance saving to a network drive etc?

                  Well... In case it's something with my 'puter I wonder what's causing this, cause I've never experienced this before...
                  I'm just saving the image on my desktop, not on any network drive or another strange location...
                  Like I said... Very strange... πŸ˜•

                  Edit: I've now tried to save the png-file to some other locations (eg. a folder on the C-drive, on the desktop, on a network drive), but the result remain identical... 😞

                  Cheers
                  Kim Frederik

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                  • F Offline
                    Frederik
                    last edited by 25 Jan 2013, 08:41

                    @thomthom said:

                    Does it happen to all models?
                    Do you have another computer nearby where you can try?

                    Just did and it's the same... 😞

                    If I save in resolution 800x600px it works fine and I can open it in Photoshop...
                    The file size is 1.83Mb in this resolution, but I also set the compression to 0...

                    Cheers
                    Kim Frederik

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                    • T Offline
                      thomthom
                      last edited by 25 Jan 2013, 08:45

                      Compression should only apply to JPEG.

                      If you export a similar 2D image from File > Export 2D?

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

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                      • F Offline
                        Frederik
                        last edited by 25 Jan 2013, 08:47

                        @frederik said:

                        ...but I also set the compression to 0...

                        Looking for a smiley banging the head into the wall...
                        Seem that this was causing the issue... 😳
                        If I leave the compression at 0.9, I'm able to open the file in res. 4400x2250px in Photoshop and the file size is 2.76Mb, which seem reasonable...

                        Perhaps you should lock the compresion to a specific value or make sure that it can't be set to 0 (read: zero)... πŸ’­

                        Cheers
                        Kim Frederik

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                        • F Offline
                          Frederik
                          last edited by 25 Jan 2013, 08:48

                          @thomthom said:

                          Compression should only apply to JPEG.

                          Then it should - by default - be "in-active" when saving to png IMO...

                          @thomthom said:

                          If you export a similar 2D image from File > Export 2D?

                          No problem, but then I can't get the transparency I need... πŸ˜‰

                          Cheers
                          Kim Frederik

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                          • T Offline
                            thomthom
                            last edited by 25 Jan 2013, 08:57

                            I had no idea it would cause oddities for PNG files... :s
                            The documentation (roll eyes) says:

                            @unknownuser said:

                            (optional) Float compression factor for JPEG images, between 0.0 and 1.0

                            http://www.sketchup.com/intl/en/developer/docs/ourdoc/view#write_image

                            So I figured there was no need to disable/enable depending on filetype - which I have no means of obtaining either as the filedialog comes after the options (SketchUp API limitation). And 0.0 is a valid value for JPEG - at least according to the API... though I've never tried to set it that low.

                            This sounds like a SketchUp bug - or very poor API documentation.
                            Unfortunately there isn't a whole lot I can do to address this.

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

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                            • T Offline
                              thomthom
                              last edited by 25 Jan 2013, 08:59

                              hm... looking at the docs again, 1.0 is best quality - 0.0 is worst. Compression is probably incorrect label (I just inherited the API argument name) - Quality is probably a better label.

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

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                              • F Offline
                                Frederik
                                last edited by 25 Jan 2013, 09:01

                                @thomthom said:

                                This sounds like a SketchUp bug - or very poor API documentation.
                                Unfortunately there isn't a whole lot I can do to address this.

                                No worries, Thomas...
                                You have my deepest respect regardless of this... πŸ˜„
                                At least I found the reason and know what to do to avoid this in the future... πŸ‘

                                Cheers
                                Kim Frederik

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                                • F Offline
                                  Frederik
                                  last edited by 25 Jan 2013, 09:05

                                  @thomthom said:

                                  hm... looking at the docs again, 1.0 is best quality - 0.0 is worst. Compression is probably incorrect label (I just inherited the API argument name) - Quality is probably a better label.

                                  Getting slightly confused...
                                  Are you going to update the plugin then...? πŸ˜•

                                  Question:
                                  Why are the user not able to select the file-type from the drop down list...?
                                  If the user had to select the file-type (i.e. JPG or PNG) the compression could be inactive when png is selected and transparency can be inactive (obviously) when the user have selected jpg... πŸ€“

                                  Cheers
                                  Kim Frederik

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                                  • T Offline
                                    thomthom
                                    last edited by 25 Jan 2013, 09:11

                                    That could possibly be an option. Might do that ... some time. But currently my priorities are Bezier Surface and Vertex Tools.

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

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                                    • F Offline
                                      Frederik
                                      last edited by 25 Jan 2013, 09:21

                                      @thomthom said:

                                      That could possibly be an option. Might do that ... some time. But currently my priorities are Bezier Surface and Vertex Tools.

                                      Take your time, Thomas... πŸ˜‰

                                      Cheers
                                      Kim Frederik

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                                      • Q Offline
                                        quentinbuilder
                                        last edited by 12 Mar 2013, 17:23

                                        I have installed the plug-in and also the required TT_lib2. The export option exists in views pulldown. I select and get the window where I select resolution, transparency- then I get a file browser window and the file option is blank and it does not seem to save a file- I must be doing something wrong. Does this work with SU8 free version?
                                        Thanks
                                        Quentin

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                                        • T Offline
                                          thomthom
                                          last edited by 12 Mar 2013, 17:45

                                          Works with free version yes, but due to a bug in the API you must manally type the file extension of the file.

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

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