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    HDRI problem Thea render

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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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