I have been trying to figure out why when I render my lightbulb image, the light coming off it becomes completely distorted. When I use preview render everything works fine. I have tried various light levels and sampling rates, nothing has changed. I have been banging my head against the wall and tearing my hair out to try and figure this out, please help. PS. I have all my render settings on default. I would post more pictures but it says its over the file limit
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$\begingroup$ At first sight, this looks like denoising artifacts? could you share your file via blend-exchange.giantcowfilms.com? $\endgroup$ – Robin Betts Feb 8 '19 at 12:27
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$\begingroup$ Sure thing: <img src="https://blend-exchange.giantcowfilms.com/embedImage.png?bid=5840" /> $\endgroup$ – Pat Feb 8 '19 at 12:57
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$\begingroup$ What you are experiencing is caused by the denoiser. Small (or thin) bright areas against a darker background will result in those white and black squares. Read: blender.stackexchange.com/questions/98510/… try lowering the settings for radius and strength, and use alternative solutions like no denoise and play with the settings for clamp indirect and clamp direct. $\endgroup$ – user1853 Feb 8 '19 at 16:34
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$\begingroup$ Read also: blender.stackexchange.com/questions/40040/… and blender.stackexchange.com/questions/96101/… and developer.blender.org/T52802 $\endgroup$ – user1853 Feb 8 '19 at 16:38
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$\begingroup$ Thank you so much, I put the denoiser radius down to one and it completely fixed the problem! $\endgroup$ – Pat Feb 9 '19 at 1:23
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