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  • To Toon or Not To Toon

    Some comments on a recent gallery post of mine (http://forum.asgvis.com/index.php?topic=7769.0) bought up a really
    interesting question for me, one that hadn't crossed my mind before diving in and using the toon material.

    Is it better to just render normally and overlay a sketchup 'Hidden Line" export rather than deal
    with the extra rendering time using the toon material?

    I was curious so i did a little test. I've rendered the same view from the same file at the same size(3000x1500px)
    the original used several toon materials, the new one i did without using any toon materials, but instead i overlayed
    in Photoshop a "Hidden Line" exort from sketchup. I've attached a comparison of the 2 versions below.



    It seems that what the toon material has outlined and the sketchup lines haven't are things such as the edges of curves and
    the intersections of overlapping objects. I took note of the rendering times too, about an hour extra for the toon material.

    i guess the conlcusion i've come to is that it's highly dependent on the model you're rendering. if you've got something that's
    got square edges then you'll likely just as good a result by overlaying a sketchup hidden line export than by rendering
    with the toon material. In this particular case, i think it's been easier and looks nicer rendering using the toon material.

    A note on the time difference: I think that intersecting all the objects to get lines on the overlaps and then finding a way in Photoshop
    to outline the curves would probably take longer than just waiting for the extra render time. While in theory the time difference is about
    an hour, in reality, for both these renderings I set it going before going to bed and in the morning it was done, and so for me, the time
    difference was Nil !

    Like i mentioned before, which method is better is going to be highly situational.

    hope this little test and info helps anyone who may have the same sort of question.

  • #2
    Re: To Toon or Not To Toon

    nice share
    My Vray for Rhino Gallery Updated 2011 Toon and Gold&nbsp; Comments are Welcome<br />http://ozanbdesign.tumblr.com/tagged/Rhino My Tumblr Rhino Gallery

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    • #3
      Re: To Toon or Not To Toon

      I've used vray toon in the past to help things pop and read more clearly. I have recently discovered (read: actually tried to use and understand) Ambient Occlusion. I now swear by it. The effect is subtle, but in the same way the I used the toon effect to make edges pop and help with the overall legibility, I have found AO to be superior. I say this for two reasons:

      1-I have noticed negligible increase in rendering times (12 seconds on a 10 minute rendering), I'm still not 100% on this, but I think it might be an effect similar to Toon where the effect is added in the final pass (no calculations necessary). I would love to get some confirmation from someon more informed on this matter.

      2-In terms of the overall effect of AO, you don't get lines that my take away from the 'realism', but you retain the amount of pop and legibility without being too distracting.

      I'll attach 2 of my tests to compare. (might be worth a download and side by side comparison)



      http://wworks.carbonmade.com

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      • #4
        Re: To Toon or Not To Toon

        Hi omega,

        i recently discovered AO too, it was mentioned in a video tutorial on making the white's come out less blue, so i tried it out a bit, it's fantastic for popping out the details and maintaining the realism, i've used it on the latest vehicle i did.

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        • #5
          Re: To Toon or Not To Toon

          hi ohfive
          if you prefer sketchup lines in ps production
          and if you want to solve pfoblems with spherical volumes
          you have to go in sketchup to styles, and put see lines and EDGES (aristas) with width=1
          thats all
          very nice renders, congrat

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