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    Various rendering choices? -- Challenge!

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    • N Offline
      notareal
      last edited by

      btw if you are looking thin film interference like effect for KT, you can find a procedural texture, mIridescent, in Procedural Textures by Chris Hegarty (Windows).

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

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      • GaieusG Offline
        Gaieus
        last edited by

        BTW Taff, a little OT but as far as I remember, this was also one of your models:

        http://lh4.ggpht.com/_zcvsIuYiVbo/SxpNB9vm88I/AAAAAAAAC2k/VHUGFptgzao/grademΓ₯l.jpg

        Of which I made this simple render first:

        http://lh5.ggpht.com/_zcvsIuYiVbo/SxpaUnwolNI/AAAAAAAAC3g/Bvu5aJdcYnU/grademal.jpg

        then this one with a glass dome:

        http://lh4.ggpht.com/_zcvsIuYiVbo/SxpaQYN4YhI/AAAAAAAAC3c/w7ZuLrnHCt4/example2.jpg

        (This was for a help forum discussion as far as I remember although the OP never came back)

        Gai...

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        • TaffGochT Offline
          TaffGoch
          last edited by

          @gaieus said:

          "BTW Taff, a little OT but as far as I remember, this was also one of your models..."

          Gai,
          I recall that discussion, and those images you posted. I probably didn't join in, since I've only recently started rendering (again.)

          From my past experience with POV, I already knew that rendering is addictive. I was too busy with other projects, and couldn't justify time spent rendering. (Actually, the spouse is of the opinion that I don't have time for SU or KT.) πŸ˜›

          I started thinking of rendering again, only after completing the "weave" geodesic ball in SU. I knew that, with all those curves and crossovers, it would make a nice subject for reflective materials, lighting and depth-of-field studies. (Participants have demonstrated that to be the case.)

          @notareal said:

          "btw if you are looking thin film interference like effect for KT, you can find a procedural texture, mIridescent, in Procedural Textures by Chris Hegarty (Windows)"

          Thanks, notareal. I've downloaded "procedurals.zip" (and, also, "Iridescent Glass.mat.zip") from the KT forum, and will check out their iridescent render results.

          -Taff

          "Information is not knowledge." -- Albert Einstein

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          • L Offline
            liam887
            last edited by

            not very good at rendering in kerk still got far too much too learn! did this anyway thought I would post it up.


            glass weave2.jpg

            VISIT MY ONLINE GALLERY
            http://www.robotsvdinosaurs.com/

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            • TaffGochT Offline
              TaffGoch
              last edited by

              Liam,

              I've long admired your Halo models, especially "Mombasa station." I used to live in Mombasa, and there will have to be a whole lot of economic improvements, to reach that level of tech. For those who don't know, an orbital elevator must be built on the equator. Mombasa is one port city that could fit the equatorial requirement.

              Regarding your render, am I looking at two super-imposed spheres? (It makes me a bit cross-eyed, to study it!) πŸ˜†

              I, too, have a lot to learn about Kerkythea. I've been playing with camera focus and depth-of-field, and hope to have a good render to post tonight. (It's "cooking" now.)

              -Taff

              "Information is not knowledge." -- Albert Einstein

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              • L Offline
                liam887
                last edited by

                yeah that halo project sure is a labour of love lol thanks. Havent done much to the new mombassa scene for a while but ill get round to it eventually.
                Yeah its two superimposed spheres slightly offset from each other to give a blurry effect. One was glass and the other a steel texture both with HDR lighting.
                Still a long way off learning to render which is very irritating as ive got drives full of hundreds of models especially my halo ones but nothing to do with them. Im slowly learning kerk but keep hitting blanks. I cant for the life of me find any materials for my scifi models, ive downloaded them all form the kerk website but there are only a few and havent found a website out there with materials 😞. Looks like ill have to work out how to make my own! eek

                These where the two renders form kerk:
                and this is what im trying to render at the moment but struggling on finding suitable materials 😞 if anybody knows a suitable kerk materials library let me know!


                glass weave.jpg


                metal weave.jpg


                20091122180633_56m29s copy.jpg

                VISIT MY ONLINE GALLERY
                http://www.robotsvdinosaurs.com/

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                • L Offline
                  liam887
                  last edited by

                  well the render turned out very grainy so i dirtied it up a bit in photoshop so it looked like I had intended it to look like that lol, ive been messing about fir the past hour with the settings and ive put another render in but looks like it will be an overnight job as its only on 4% ray tracing! ill post the results tomorrow night fingers crossed they will come out ok, ive also put depth of field in but its really slowing the render down 😞

                  VISIT MY ONLINE GALLERY
                  http://www.robotsvdinosaurs.com/

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                  • TaffGochT Offline
                    TaffGoch
                    last edited by

                    Liam,

                    I like the "illustration" qualities of the second image.


                    [EDIT: I hope that Starfleet shipyard is on an asteroid! (No gravity to contend with.) ]

                    -Taff

                    "Information is not knowledge." -- Albert Einstein

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                    • TaffGochT Offline
                      TaffGoch
                      last edited by

                      Working with Kerky camera f-stop settings ("Scene> Camera" menu,) I eventually got the amount of depth-of-field blur that I was seeking:

                      f/3.5
                      Compared to the original:

                      Initial render
                      Yeesh, this is a lot more time-consuming than looking through a camera stopped-down viewfinder!

                      -Taff

                      "Information is not knowledge." -- Albert Einstein

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                      • boofredlayB Offline
                        boofredlay
                        last edited by

                        Here is another angle. I used the same lighting setup as the last one, changed the material to green gum and added a beige backdrop. I also changed the Camera F-Number to 22.


                        Ball_138.jpg

                        http://www.coroflot.com/boofredlay

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                        • TaffGochT Offline
                          TaffGoch
                          last edited by

                          @unknownuser said:

                          Here is another angle. I used the same lighting setup as the last one, changed the material to green gum and added a beige backdrop. I also changed the Camera F-Number to 22.

                          Wait, wait, wait... πŸ˜•

                          I thought that higher f-stop provides greater depth-of-field. Wouldn't f/22 give you a large range of in-focus detail?

                          Are you positioning the camera right up against the sphere?

                          -Taff

                          "Information is not knowledge." -- Albert Einstein

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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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