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Activity Forums Maxon Cinema 4D Flickering and Shadow Problem – see Quicktime sample

  • Flickering and Shadow Problem – see Quicktime sample

    Posted by Jason Connolly on April 21, 2005 at 12:48 am

    Yup, me again! Can anybody tell me why I’ve got flickering and a dancing shadow in this logo I’ve rendered??

    Quicktime sample here: (750KB)

    I only have two lights in the scene: an overhead AREA light, and an OMNI light in front of the logo, both with soft shadows checked on. The textures I’ve applied are from maxon’s templates, so they are nothing that complex. I do have a lot of polygons, however, as I was having trouble getting smooth curves. But why would that give me that dancing shadow on the floor??

    Ugh. I need a rest…hopefully some kind hearted COW folks can show me the way.


    Jason Connolly replied 18 years, 5 months ago 2 Members · 4 Replies
  • 4 Replies
  • Donat Van bellinghen

    April 21, 2005 at 10:00 am

    I ran in that problem too. I suspect hhe flickering comes from the shadow map which has a too small resolution. Try setting the shadow resolution to 1000×1000 for example, and adjust the sample to your taste.

    Hope this helps.


  • Jason Connolly

    April 21, 2005 at 2:55 pm


    Ahh, yes! Thanks!! Boosting the shadow map resolution fixed the dancing shadow, but I still have the flickering on the bottom of the number 1 in the logo. I’ve tried various combinations of Caps, Fillet caps, etc., and that area of the logo always misbehaves. I’m guessing it’s a polygon or triangluation issue?? Anybody have thoughts on smoothing it out?

    see original quicktime here:

    Many, many thanks!!

  • Jason Connolly

    April 21, 2005 at 3:51 pm

    I applied Brian’s smooth curve tip (in COW post right below this one) and the logo now behaves.

    Thank you THE COW!!


  • Jason Connolly

    April 22, 2005 at 3:38 pm

    Hello the COW! Just wanted to share the results of the useful tips I received from you guys.

    Here’s the fixed logo:

    Thanks again!

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