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    Realtime ambient occlusion =)

    Scheduled Pinned Locked Moved SketchUp Feature Requests
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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 Online
            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 Online
                      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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