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[Plugin] RayTrace & RaySpray

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  • T Offline
    thomthom
    last edited by 26 Mar 2010, 10:29

    @adamb said:

    In some sense, we've got this all back to front. We should be describing our models with the minimum information and then refine that description to get more details. Certainly when you get to the point of having sub-pixel polygons, you have to question whether this is such a great representation.

    hmm... a plugins to analyse the model from the current viewport and highlight the ones with many sub-pixel polygons... or is there one out there already?

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

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    • K Offline
      ken
      last edited by 26 Mar 2010, 12:12

      OK, I can visualize it now, the TV detective pulls out his laptop, fires up Sketchup and the ray trace plugin, and determine the bullets fight path, and solves another crime, all thanks to TIG and his plugin.

      Ken

      Fight like your the third monkey on Noah's Ark gangway.

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      • H Offline
        honoluludesktop
        last edited by 26 Mar 2010, 18:39

        @adamb said:

        But thats the point. The wavelength of visible light is so small compared to the thickness of the mirror, the interference between the bounce from the back of the mirror and front is effectively zero.

        Unless you have very thin mirrors! 🙂

        Sounds like I got it backwards 🙂

        How about a render program that lets the user adjust select components (like keyboards in a large office) to reduce render times?

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        • D Offline
          Didier Bur
          last edited by 26 Mar 2010, 20:23

          Cool plugin TIG !
          I'll surely use it to explain to my students how light bounces when hiting objects and so on 😎
          I cannot see the usual red-green-black-blue-cyan colored dots when snapping points for postionning the start and end points. Is this normal ?

          DB

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          • T Offline
            TIG Moderator
            last edited by 26 Mar 2010, 20:27

            @didier bur said:

            Cool plugin TIG !
            I'll surely use it to explain to my students how light bounces when hitting objects and so on 😎
            I cannot see the usual red-green-black-blue-cyan colored dots when snapping points for postioning the start and end points. Is this normal ?

            I have probably not set 'inferencing' properly in the tool code !
            I did it in a rush... 😒
            I'll look at it..........

            TIG

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            • D Offline
              Didier Bur
              last edited by 26 Mar 2010, 20:37

              I give you 1 hour to correct the problem. And please DON'T GO TO SLEEP. HEAR ME ? 🤣

              DB

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              • K Offline
                ken
                last edited by 26 Mar 2010, 21:17

                TIG

                Thanks for a fun plugin. I know other will need this, and I know sometime in the future I will be able to find a good use for this plugin.

                On a side note, my version just keep bouncing the ole rays until it doesn't hit anything. I was playing with it in a box. Selecting the "NO" bottom does not stop the rays.

                Just passing this on. If I am the only one with this problem, I can live with it.

                Again, thanks for plugin. Can't wait until I find some usual project for this plugin.

                Ken

                Fight like your the third monkey on Noah's Ark gangway.

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                • T Offline
                  TIG Moderator
                  last edited by 26 Mar 2010, 23:15

                  Here's v1.2 http://forums.sketchucation.com/viewtopic.php?p=235227#p235227
                  The bouncing now stops on 'No' - stupid typo 😒
                  Inferencing improved.
                  [Sorry it took so long - but I do have to eat etc... 😉 ]

                  TIG

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                  • H Offline
                    hebeijianke
                    last edited by 29 Mar 2010, 13:14

                    TIG
                    thx
                    Can you make a icon for this plugin

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                    • L Offline
                      lbjazz
                      last edited by 30 Mar 2010, 14:21

                      Holy crap - THANK YOU! I've been needing something like this for a while but don't have the time to learn enough Ruby to make it happen. You ROCK!

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                      • L Offline
                        lincol
                        last edited by 6 May 2010, 12:44

                        I cannot find any link to this. It would be really handy to me for roughing up mirror lenses. Where is link

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                        • T Offline
                          thomthom
                          last edited by 6 May 2010, 13:21

                          @lincol said:

                          I cannot find any link to this. It would be really handy to me for roughing up mirror lenses. Where is link

                          First post on the first page of this thread.

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

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                          • L Offline
                            lincol
                            last edited by 6 May 2010, 14:59

                            thanks - I didnt have proper access - something to do with new subscription
                            lin

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                            • M Offline
                              mus257
                              last edited by 10 May 2010, 18:31

                              This is really interesting. I look forward to sifting through the code.

                              As a sound and video designer, I can say this could be very handy. It does however have some issues for practical use as it stands.

                              When using spray, all sources must be assumed as omnidirectional. It would great to be able to show just a 50 degree spray and specify the focus. As it stands you have to show spray as "flat", i.e. no tilt in the XYZ axes. This prevents you from, say, angling a speaker down. I do use more advanced sound software like EASE for this normally, but I think Sketchup could work better for showing raytracing to a client than EASE.

                              In trace mode, it would be cool to be able to just show source and direction and the first reflection angle is calculated when it encounters a face. I have coverage angles I use in Sketchup and used them to illustrate. Right now, if I click on the origin, then the end of the coverage line, it calculates the reflection off the end of the line, not off the face it's aimed at.

                              Just some thoughts if you keep modifying the script. Thanks for the awesome work.

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                              • M Offline
                                mus257
                                last edited by 10 May 2010, 18:32

                                raytrace test.skprayspray test.skpThis is really interesting. I look forward to sifting through the code.

                                As a sound and video designer, I can say this could be very handy. It does however have some issues for practical use as it stands.

                                When using spray, all sources must be assumed as omnidirectional. It would great to be able to show just a 50 degree spray and specify the focus. As it stands you have to show spray as "flat", i.e. no tilt in the XYZ axes. This prevents you from, say, angling a speaker down. I do use more advanced sound software like EASE for this normally, but I think Sketchup could work better for showing raytracing to a client than EASE.

                                In trace mode, it would be cool to be able to just show source and direction and the first reflection angle is calculated when it encounters a face. I have coverage angles I use in Sketchup and used them to illustrate. Right now, if I click on the origin, then the end of the coverage line, it calculates the reflection off the end of the line, not off the face it's aimed at.

                                Just some thoughts if you keep modifying the script. Thanks for the awesome work.

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                                • M Offline
                                  mus257
                                  last edited by 18 May 2010, 17:31

                                  Hi TIG,

                                  I got back to playing with the rayspray last night and was using it for a noise study at my apartment. (We have a Kragen parking lot next to the patio.) 😞 Anyway, I tried using the spray and deleting coverage that wasn't helpful. Then I realized it was much easier to just put a dome over the spray and adjust that to coverage that I cared about. i.e., I'm not looking at the noise flying up into the sky. Worked pretty well, an example is attached. It's a great tool, thanks. Though if you ever figure out how to aim a controlled spray or, say, 2 rays with a specific degree spread between them, this would be even more powerful for sound and light coverage.

                                  Thanks again
                                  Joe


                                  Rayspray.skp

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                                  • L Offline
                                    Lobster
                                    last edited by 25 Oct 2010, 12:24

                                    Thanks Tig,

                                    Will be useful to me i am sure.

                                    Regards

                                    Sam

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                                    • T Offline
                                      TIG Moderator
                                      last edited by 25 Oct 2010, 12:32

                                      In v8 the 'raytest' method is flaky and it is used by these tools... BUT a fix is promised for MR1...

                                      TIG

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                                      • F Offline
                                        flowheimer
                                        last edited by 10 Jan 2011, 16:25

                                        I just discovered RayTrace/Spray today; I was searching for a plugin with just this sort of functionality and this appears to be the only one of its kind.

                                        If I may offer some feedback:

                                        I'm using it in Sketchup 8.0.3117 and am encountering some odd behaviour.
                                        For some reason, using RayTrace, sometimes a ray will bounce, and sometimes it just stops short of the next plane, even within a fully enclosed volume. As far as I can tell there is no consistency to this behaviour and thus no telling how many bounces (if any) a ray will perform before abruptly terminating mid-flight.

                                        Any ideas?

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                                        • T Offline
                                          thomthom
                                          last edited by 10 Jan 2011, 16:28

                                          Does it happen in SU7?
                                          There is a bug in the raytracing function in SU8.

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

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