I have a plane with ocean modifier but it has some black patches when you gaze at it from a certain angle. What can it be? Maybe this is fine effect for an ocean? increasing ocean resolution doesn't seem to solve the problem. Spots Ocean settings Node setup

  • $\begingroup$ you have one quite dark glossy shader there .. could this be the problem? To be honest I'm still not completely through the nodes ;) Now I think it also might have to do something with your displacement and seeing some faces "from behind" as they get displaced to a concav shape $\endgroup$
    – derHugo
    Commented Jun 18, 2017 at 17:55
  • $\begingroup$ Dark glossy doesn't seem to be a problem. $\endgroup$ Commented Jun 19, 2017 at 7:21
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    $\begingroup$ There was a similar question asked a while ago. Maybe your issue is sililar:blender.stackexchange.com/q/24852/1853 $\endgroup$
    – user1853
    Commented Jun 19, 2017 at 20:49
  • $\begingroup$ The problem could be the normal computation, I have noticed some triangle do not create a continuous mesh at times. $\endgroup$ Commented Jun 1, 2020 at 21:30


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