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enter image description here I am new to using blender and I am working on rendering a scene that uses portal lighting, but I am having some render issues and I don't know why. Is there anything I can try to fix this issue?

Denoising didn't seem to make a difference on the picture cloudiness one way or another. Adding more samples helped a lot, but I still have that issue some.enter image description here

Here's a link to my blender file https://drive.google.com/file/d/1uNfl7msr-o_v0AR5WSfbMFfdvP_zo2Ly/view?usp=sharing

Thanks everyone, the advice was very helpful! For anyone else having this problem, try the advice below and primarily lower the number of your light sources in the scene.


marked as duplicate by Duarte Farrajota Ramos, batFINGER, p2or, X-27 the fluffy unicorn, Denis Oct 13 '18 at 16:08

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    $\begingroup$ Looks like denoising or clamping to me $\endgroup$ – WhatAMesh Sep 26 '18 at 8:59
  • $\begingroup$ Try increasing the samples $\endgroup$ – rob Sep 26 '18 at 9:46
  • $\begingroup$ Thanks for the feedback! Sampling helped some, but it didn't fix the problem. What else could I try? $\endgroup$ – Trent Sep 26 '18 at 10:11
  • $\begingroup$ Hi Trent, could You provide us a .blend file please? $\endgroup$ – Jan Matys Sep 26 '18 at 13:29
  • $\begingroup$ Heres a google drive link to the file drive.google.com/file/d/1uNfl7msr-o_v0AR5WSfbMFfdvP_zo2Ly/… $\endgroup$ – Trent Sep 26 '18 at 16:48

first of all, in the archive you've sent i haven't found any portals.. to set them properly you shoud get an area lamp and not a sun one.

like this:example1

second, i recommend you to reduce the light bounces, its better for performance and i think it may help with some of the noise:


the denoiser effect may be too strong, i'd leave it in the default settings, besides 8 radius costs a lot of performance..

A big part of the problem can be because there is too many light sources.. i don't know how you could fix this.. but from what i already said im pretty sure you'll get better results

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    $\begingroup$ Thank you. I forgot I changed my portals to sun lights. I thought the portals were the issue at first. Ill definitely try what you suggested. I also change my material properties and that has helped too. $\endgroup$ – Trent Sep 26 '18 at 23:39

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