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Activity Forums Maxon Cinema 4D Render effect – can u help? Moved from Maya and struggling.

  • Render effect – can u help? Moved from Maya and struggling.

    Posted by Matthew Cooper on October 26, 2009 at 1:49 pm

    Hi Folks,

    Can you help. I have a brain model (working on a medical anim for a new client) and I want to show it as 80% transparent. However when I alter the settings and render it shows the brain detail inside and a the back. Ideally I want to show is a semi transparent but back-face culled (so a more flat effect, less busy effect). Can you advise me on the setting I could try.

    I’ve moved over from Maya to C4D so go easy on me!

    Thanks,
    Matthew.

    ——
    http://www.pixelchili.com
    shoot-edit-animate-deliver

    Matthew Cooper replied 16 years, 6 months ago 3 Members · 7 Replies
  • 7 Replies
  • Matthew Cooper

    October 26, 2009 at 2:02 pm

    Here’s a pic (if I get the link to work!)

    ——
    http://www.pixelchili.com
    shoot-edit-animate-deliver

  • Matthew Cooper

    October 26, 2009 at 2:15 pm

    K, so it’s the X-ray effect in the viewport. I guess the question is, how can I replicate this in the render?

    Ill be quiet now… 🙂

    Thanks
    Matt.

    ——
    http://www.pixelchili.com
    shoot-edit-animate-deliver

  • Adam Trachtenberg

    October 26, 2009 at 3:34 pm

    I don’t think that there’s any way to do it directly in Cinema, without a plugin. Arndt, one of the forum leaders here, had a shader plugin that did exactly what you want, but I don’t see it listed on his site. You could contact him about it.

    Otherwise you could do it by rendering the object separately and doing the transparency in post.

  • Lennart Wåhlin

    October 26, 2009 at 4:23 pm

    Add a Compositing Tag to the object.
    In the “Exclusion” tab drag the object itself into it.
    Then check the first “arrow thru line” symbol in there
    and it’s all fine 🙂

    Cheers
    Lennart

    aka tcastudios

  • Matthew Cooper

    October 26, 2009 at 5:02 pm

    Thanks Lennart, it almost works!

    If the background is black it works very well. However, as this is a medical animation the scene is white.

    When I render it out it shows nothing (unless I put an object behind the brain and then it’s visible.

    pics attached should hopefully make sense. Any further suggestions?

    Im currently looking into the ‘Environment Object’ as on option to replace my large white sphere with 100 illumination (this forms my scenery in which my models are placed) and may be causing the problem?

    Many thanks, Matt.

    pic #2

    ——
    http://www.pixelchili.com
    shoot-edit-animate-deliver

  • Adam Trachtenberg

    October 26, 2009 at 9:42 pm

    Strange — it works fine here.

  • Matthew Cooper

    October 27, 2009 at 10:37 am

    Hi Lennart,

    Thanks for the info. After some more tinkering with exclusion of various objects (and changing the luminosity settings of my backdrop) I finally achieved the effect I was looking for (pic below). Many Thanks!

    Thanks Adam for confirming it works too, that kept me from straying off the path!

    ——
    http://www.pixelchili.com
    shoot-edit-animate-deliver

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