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    Realtime ambient occlusion =)

    Scheduled Pinned Locked Moved SketchUp Feature Requests
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    • B Offline
      bsfranza
      last edited by

      the latest beta of form z showed some cool realtime ambient occlusion - like what the nitrous viewport does in max...

      would be cool to have something like that in su - just for the eye... would help alot in dealing with complex geometry and get a feeling for depth=)

      greetings

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      • olisheaO Offline
        olishea
        last edited by

        can't you do this with lightup? i know you can screen with AO, but I don't know if you can have just a realtime AO render.

        I also love the AO shader in Wings 3D.

        oli

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        • pilouP Offline
          pilou
          last edited by

          @unknownuser said:

          AO shader in Wings 3D.

          Seems it's only white ?

          wings3d.jpg

          Frenchy Pilou
          Is beautiful that please without concept!
          My Little site :)

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          • olisheaO Offline
            olishea
            last edited by

            Because you need encompassing/neighbouring geometry to create the occlusion...if that makes sense? make multiple copies Pilou. There is a scorpius shader too somewhere which looks better.

            You also need to access ambient occlusion from View>Shaders>Spherical Ambient Occlusion.

            The environment mapping shader is also cool for shiny stuff. Toon is fun too, in fact they are all quite fun!


            Screen Shot 2014-06-06 at 17.43.28.png


            Screen Shot 2014-06-06 at 17.43.42.png


            Screen Shot 2014-06-06 at 17.46.52.png

            oli

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            • Rich O BrienR Offline
              Rich O Brien Moderator
              last edited by

              This is a guess but....

              SketchUp uses some type of gourad shading for geometry to trick the eye that objects are smooth.

              If you toggle on shadows you'll see that the shadows reflect the actual facets of the geometry.

              Dan has a plugin called simple rays that bakes AO. Takes an age as it bakes a texture on each face.

              I've mentioned this to a dev on having a dirty vertex shading in SU.

              There's already a normal map shader so I think vertex shading is possible.

              Which is a AO hack.

              Download the free D'oh Book for SketchUp πŸ“–

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              • olisheaO Offline
                olishea
                last edited by

                even if it was as good as the depth map (fog) i'd be happy.

                oli

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                • pilouP Offline
                  pilou
                  last edited by

                  Thx for the wings 3D tuto! β˜€
                  & videos! πŸ˜‰

                  Frenchy Pilou
                  Is beautiful that please without concept!
                  My Little site :)

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                  • olisheaO Offline
                    olishea
                    last edited by

                    Have fun its a GREAT app!

                    Back to the topic though....can LightUp just render AO on its own? I'll PM Adam.

                    oli

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                    • pilouP Offline
                      pilou
                      last edited by

                      If you put the saturation at minimum in LightUp, you don't have a sort of Ambient Occlusion ?

                      And that will be never a real time AO but a "post" real time AO! πŸ˜‰

                      Frenchy Pilou
                      Is beautiful that please without concept!
                      My Little site :)

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                      • Rich O BrienR Offline
                        Rich O Brien Moderator
                        last edited by

                        Rich_007_06-06-2014.png

                        Download the free D'oh Book for SketchUp πŸ“–

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                        • pilouP Offline
                          pilou
                          last edited by

                          Effectively, menu was temporary hidden for my eyes! πŸ˜„

                          ao.jpg

                          But i prefere only decrease saturation πŸ˜„

                          aobis.jpg

                          but original is more appetizzing! πŸ˜„

                          lightup1.jpg

                          Frenchy Pilou
                          Is beautiful that please without concept!
                          My Little site :)

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                          • AdamBA Offline
                            AdamB
                            last edited by

                            One thing you'll notice with purely shader-based AO as used in FormZ/Nitro/Lumion etc is they use what is known as SSAO (Screen-space AO) which gives an effect of darkening near edges, but can't take account of true local surfaces. So sometimes it looks a bit like the model is wet in the corners! Particularly, it can't handle diffuse color bleeding (eg a nearby red surface influencing the color of other surfaces nearby) like LightUp, vray etc.

                            Adam

                            Developer of LightUp Click for website

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                            • B Offline
                              bsfranza
                              last edited by

                              well the flaws of "faked" ao vs true raytraced solutions is known i guess...

                              nevertheless some advanced display options would be cool in su, may there be ao or bump mapping or whatever opengl has to offer=)

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