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    Various rendering choices? -- Challenge!

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    • boofredlayB Offline
      boofredlay
      last edited by

      Yes and yes. I put the camera almost dead on the sphere. I had to change the F stop to a larger number otherwise it was too blurry. On the previous one I did the camera was farther away.

      http://www.coroflot.com/boofredlay

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      • TaffGochT Offline
        TaffGoch
        last edited by

        Thanks, Eric.

        I'm glad I have some photography experience under my belt, otherwise, I wouldn't even have been able to guess. πŸ˜‰

        My test renders have been with the camera at greater distance, with 135mm "lens" to reduce perspective distortion. (I assume you're using the "standard" 25mm lens.)

        My last render, with which I am delighted, took a lot longer to render. I assume this is processing "overhead," due to the out-of-focus regions. I note that the anti-aliasing time went WAY up.

        From the Kerkythea console:
        Ray Tracing (13839 seconds) -- 3 hr, 50 min, 39 sec
        Antialiasing (23945 seconds) -- 6 hr, 39 min, 5 sec
        Finished in 10 hours, 29 minutes and 47 seconds
        (Render settings: 1200x1200 pixels, preset "16. Path Tracing - High + AA 0.3")


        Thanks, again, Eric, for your help & contributions.

        -Taff

        "Information is not knowledge." -- Albert Einstein

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        • TaffGochT Offline
          TaffGoch
          last edited by

          I've seen a stereoscopic SU/GE model of Machu Picchu (within this forum,) but haven't seen any stereoscopic renderings.

          Has anyone pursued stereo rendering? (I'm thinking this model should make a good subject.)

          -Taff

          "Information is not knowledge." -- Albert Einstein

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          • U Offline
            Unkr3at1v
            last edited by

            Just a try for a quick benchmark test of my father's new PC!
            A quick studio setup with two rectangle lights.
            Took about 40 min (800*x) in vray. Thought it would be faster.

            Tomorrow I will try a glass material. That will give some nice caustics.
            Also tried Jade, but I can't get that damn translucency thing to work in Vray.

            Greetz, Fritz


            1.png

            'To Start Press Any Key'. Where's the ANY key?

            http://www.youtube.com/user/unkr3at1v

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            • boofredlayB Offline
              boofredlay
              last edited by

              Nice reflections.

              http://www.coroflot.com/boofredlay

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              • N Offline
                notareal
                last edited by

                @taffgoch said:

                Thanks, Eric.

                I'm glad I have some photography experience under my belt, otherwise, I wouldn't even have been able to guess. πŸ˜‰

                My test renders have been with the camera at greater distance, with 135mm "lens" to reduce perspective distortion. (I assume you're using the "standard" 25mm lens.)

                My last render, with which I am delighted, took a lot longer to render. I assume this is processing "overhead," due to the out-of-focus regions. I note that the anti-aliasing time went WAY up.

                From the Kerkythea console:
                Ray Tracing (13839 seconds) -- 3 hr, 50 min, 39 sec
                Antialiasing (23945 seconds) -- 6 hr, 39 min, 5 sec
                Finished in 10 hours, 29 minutes and 47 seconds
                (Render settings: 1200x1200 pixels, preset "16. Path Tracing - High + AA 0.3")


                Thanks, again, Eric, for your help & contributions.

                -Taff

                If you have simple lighting in KT (like one or two lights) then path tracing progressive might be the best option. Biased rendering will loose it's advantage when scene complexity rises and you use higher photon mapping options... For complex lighting MLT or MLT/BPT are better options. If you using HDR sky for lighting (and emitters), MLT might be the best option.

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

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                • TaffGochT Offline
                  TaffGoch
                  last edited by

                  @notareal said:

                  If you have simple lighting in KT (like one or two lights) then path tracing progressive might be the best option. Biased rendering will loose it's advantage when scene complexity rises and you use higher photon mapping options... For complex lighting MLT or MLT/BPT are better options. If you using HDR sky for lighting (and emitters), MLT might be the best option.

                  Thanks, notareal,

                  That is great to know, as I haven't previously seen any recommendations about which render mode is best, under various scene conditions. KT has so many options, any tips/tricks are highly beneficial. If you've got any other such tips, or can reference KT webpage/forum URLs for such, I'd love to hear about 'em.

                  -Taff

                  "Information is not knowledge." -- Albert Einstein

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                  • N Offline
                    notareal
                    last edited by

                    Tutorials master list is a good starting point and not to forget forum search πŸ˜‰

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

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                    • TaffGochT Offline
                      TaffGoch
                      last edited by

                      Thanks, notareal, for the tutorial links. Now, all I need is a few weeks/months to read & apply it all.


                      My last render pleases me above all my previous renders. The more I stare at it, the more three-dimensional it looks. (Who needs those fancy 3D goggles, anyway!)

                      http://i579.photobucket.com/albums/ss233/taffgoch/Weave_Toned_Silver_f35-1.jpg

                      What a great program Kerkythea is, and what great help and inspirational ideas you guys provided.

                      -Taff

                      "Information is not knowledge." -- Albert Einstein

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                      • Chris FullmerC Offline
                        Chris Fullmer
                        last edited by

                        Looks good Taff. I can't get my eyes to uncross....but oh well. It probably looks better than how my face used to look 😲

                        Lately you've been tan, suspicious for the winter.
                        All my Plugins I've written

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                        • TaffGochT Offline
                          TaffGoch
                          last edited by

                          Stereo: View cross-eyed
                          Initial experiment with KT stereo-image production. View by crossing your eyes, until the two images superimpose in the center. (It will look like 3 images in-a-row.) Concentrate on the center image, until it comes into focus.

                          I used SketchUp to produce two "scenes," which merge into KT as two cameras. (Getting the spacing is tricky. You don't want to overdo the angular separation. It is supposed to mimic the angular separation of your eyes, so camera distance is also a factor.)

                          -Taff

                          "Information is not knowledge." -- Albert Einstein

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                          • daleD Offline
                            dale
                            last edited by

                            @taffgoch said:

                            [attachment=0:31w8a5i7]<!-- ia0 -->Stereo_Weave_01.png<!-- ia0 -->[/attachment:31w8a5i7]
                            . View by crossing your eyes, until the two images superimpose in the center. (It will look like 3 images in-a-row.) Concentrate on the center image, until it comes into focus.

                            -Taff

                            I find a few beer works well too! πŸ˜„

                            Just monkeying around....like Monsanto

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                            • olisheaO Offline
                              olishea
                              last edited by

                              that stereo view is amazing!! looks like avatar!!

                              seriously impressive but my eyes hurt!

                              oli

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                              • N Offline
                                notareal
                                last edited by

                                @olishea said:

                                that stereo view is amazing!! looks like avatar!!

                                seriously impressive but my eyes hurt!

                                Lucky you! I think I have some wiring problems - I never been able to see these kind of "3D" images. No matter how much I try to focus... de-focus or what ever. But different 3D glasses do usually work fine.

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

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                                • olisheaO Offline
                                  olishea
                                  last edited by

                                  you have to move your head back and forward to get the "focal length" right lol it really does look 3D!!

                                  oli

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                                  • D Offline
                                    d12dozr
                                    last edited by

                                    This is a great learning thread...thanks Taff! My small contribution, if you can call it that...all that I supplied was the computing power. Magnifying lens and scene by Fletch at the Twilight Render Forum.


                                    Geodesic Weave Magnifying Glass.jpg

                                    3D Printing with SketchUp Book
                                    http://goo.gl/f7ooYh

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                                    • TaffGochT Offline
                                      TaffGoch
                                      last edited by

                                      @d12dozr said:

                                      This is a great learning thread...thanks Taff!

                                      Marcus,
                                      I've learned a lot, too. Your render depicts a handy concept for presentation of detail in a render.


                                      Regarding my 3D view experiment, I've completed a larger version of my initial, small, proof-of-concept render. If you have a hi-res display, the initial model will look tiny. This one should look much better on hi-res displays.

                                      (If you have trouble focusing, cross-eyed, on the center image, move your head forward or back, as suggested by Oliver Shea.)

                                      http://i579.photobucket.com/albums/ss233/taffgoch/Stereo_Weave_Gold.jpg

                                      *%(#BF0000)[Render: "16. Path Tracing - High + AA 0.3"


                                      Camera 1:
                                      Ray Tracing : ( 4,892 seconds) 1h/21m/32s
                                      Antialiasing : (12,792 seconds) 3h/33m/12s
                                      Finished in : 4h/54m/48s


                                      Camera 2:
                                      Ray Tracing : ( 4,883 seconds) 1h/21m/23s
                                      Antialiasing : (13,105 seconds) 3h/38m/25s
                                      Finished in : 4h/59m/54s


                                      Both cameras:
                                      Lens: f/4.2, 135mm focal length, 3.4m focus distance]*
                                      -Taff

                                      "Information is not knowledge." -- Albert Einstein

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                                      • EscapeArtistE Offline
                                        EscapeArtist
                                        last edited by

                                        I think that render might be a bit large for some of us. The inter ocular distance for most folks is around 2 - 4", and that model on my screen is just under 8" on centers for a 22" LCD. That means your eyes at a normal monitor's viewing distance of 1-3' would have to diverge to get the 3D effect. I tried crossing my eyes, and that didn't work either. Guess mine just don't work that way πŸ˜„

                                        http://www.uglymales.com/wc/wp-content/uploads/2009/08/marty-feldman1.jpg

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                                        • pyrolunaP Offline
                                          pyroluna
                                          last edited by

                                          right... I don't really do cross-eyed picture-things
                                          I do, however, own a very primitive pair of red/cyan-3d-glasses.

                                          So I tried making this picture into a picture that can work with those glasses... proves quite difficult, but I think it works...


                                          Stereoglyph_Weave_Gold.jpg

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                                          • olisheaO Offline
                                            olishea
                                            last edited by

                                            yeah i think this one doesn't work as well Taff.....it seems blurry compared to the smaller one....the effect is still there, just not as crisp it seems.

                                            oli

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