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    HDRI problem Thea render

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    • usenU Offline
      usen
      last edited by

      I can not do the same thing this video, I'm not doing shadow

      http://b1303.hizliresim.com/17/d/l030q.jpg

      http://b1303.hizliresim.com/17/d/l0338.jpg

      http://www.sketchupturkiye.com/

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      • FrederikF Offline
        Frederik
        last edited by

        I'm not sure that your hdri has the best quality... 😐

        I can only encourage you to try this scene, where you can take learnings from the material settings etc...
        (NB! please note the file-size is 83Mb, because it also contain a free hdri...)

        With the scene you should be able to get a render similar to this if you're using the latest Thea4SU plugin...


        VW-shadow-test.jpg

        Cheers
        Kim Frederik

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        • usenU Offline
          usen
          last edited by

          Thank you very much for your concern, I'm trying. πŸ‘

          http://www.sketchupturkiye.com/

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          • NigeCN Offline
            NigeC
            last edited by

            Tomasz used frontal projection with his scene
            quick tut:
            Setup you scene with the car on a plan add the hdri,
            scale the plane so it reaches the horizon
            Hide everything and render the scene, save the image
            unhide everything
            add the previously rendered image to the plane
            open the thea dialog and double click on the image
            set the diffused slot projection to frontal
            close the mat lab
            do a test render, you'll find the background is slightly darker, set the background intensity to about 1.7, you may need to fiddle about a bit
            thats it πŸ˜„
            car.png
            Here's the Thea version as a pack file, I don't have the SU file on this laptop
            pack file

            β€œIt’s only impossible if you stop and think about it!”

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            • usenU Offline
              usen
              last edited by

              not in the same way as in sketchup shadow thea?

              http://c1303.hizliresim.com/17/f/l0jhg.jpg

              http://www.sketchupturkiye.com/

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              • FrederikF Offline
                Frederik
                last edited by

                @usen said:

                not in the same way as in sketchup shadow thea?

                You're mixing things up...
                Please remember that the hdri will also be a source of the illumination...

                Please take the advice Nigec have provided... πŸ˜‰

                Cheers
                Kim Frederik

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                • N Offline
                  notareal
                  last edited by

                  If you want silhouette shadows is Thea, using frontal projection is the way to do it. But if simple "attaching" a model on a HDRI is enough then using shadow catcher is must.

                  Welcome to try [Thea Render](http://www.thearender.com/), Thea support | [kerkythea.net](http://www.kerkythea.net/) -team member

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                  • NigeCN Offline
                    NigeC
                    last edited by

                    No you don't use a shadow catcher at all, it uses the actual geometry with a texture
                    here's a SU version
                    Su file

                    you can also add bump, and reflections, but you need to use masks

                    β€œIt’s only impossible if you stop and think about it!”

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                    • NigeCN Offline
                      NigeC
                      last edited by

                      here's a quick guide


                      frontal projection.pdf

                      β€œIt’s only impossible if you stop and think about it!”

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                      • massimoM Offline
                        massimo Moderator
                        last edited by

                        Hi Nige and welcome. πŸ‘ πŸ˜„

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                        • NigeCN Offline
                          NigeC
                          last edited by

                          Thanks massimo, I've been lurking for years so I thought it was a good time to say something! 🀣

                          β€œIt’s only impossible if you stop and think about it!”

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                          • R Offline
                            rhed037
                            last edited by

                            Frederik can you pls upload it again the scene with HDRI with the beetle car I want to learned it. tnx

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                            • FrederikF Offline
                              Frederik
                              last edited by

                              @rhed037 said:

                              Frederik can you pls upload it again the scene with HDRI with the beetle car I want to learned it. tnx

                              Sorry - but after almost two years, I don't have that scene any more... 😐
                              What exactly is it you want to learn...?
                              How to setup a scene in SU with a shadow catching material...?
                              Or...?!?

                              Cheers
                              Kim Frederik

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                              • R Offline
                                rhed037
                                last edited by

                                i have same problem of the hdri when i render the shadow is not visible to the scene can you pls uplaod any model and ready to render in thea so that i can check what is wrong in my scene and follow your settings tnx

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                                • FrederikF Offline
                                  Frederik
                                  last edited by

                                  @rhed037 said:

                                  ...can you pls uplaod any model and ready to render in thea so that i can check what is wrong in my scene and follow your settings tnx

                                  Attached please find a very simple model with some spheres...
                                  THe render was complete in 16 seconds using the BSD preset...

                                  I've used the "Harbor 3" hdri from the HDRI Hub IBL package, which is free to download for registered users... πŸ˜‰

                                  Hope this can help you further...?!?


                                  Shadow-catch-test.skp


                                  Shadow-catch-test2_16sec.jpg

                                  Cheers
                                  Kim Frederik

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