Camera DOF Firefly and Artifacts

[mphillips0007]

I have a render with Camera DOF enabled.  The issue I am having is with fireflies or artifacts in the render and not sure what is causing the issue.  I am lighting my scene with a skydome_light with samples set to 3 and point_light with samples also set to 3.  I read that Camera AA effects motion blur and DOF quality?  I have turned Camera AA up to 10 and still have artifacts.  Its mostly in the highlights and can easily be repaired in Photoshop but I really would like the renders as clean as possible to limit post production.  I have attached images of my render settings and pictures of artifacts.  Any advice would be greatly appreciated.

 

[lee_griggs]

You could try increasing Camera (AA) samples or using Adaptive Samling. You could try adjusting the standard_surface.specular_roughness too. There is also Clamping and denoising.

[mphillips0007]

Ok, will try that.

[lee_griggs]

I have been getting very clean results with only 8 Camera (AA) samples using the OIDN denoiser imager here with scenes that have heavy DOF.

[mphillips0007]

Thanks, your renders look really good.

[mphillips0007]

@lee_griggs Do you know of any good tutorials showing how to use OIDN denoiser?  Im guessing doing this will improve render times versus turning up Camera AA?

[lee_griggs]

Here and in the docs:

https://www.youtube.com/watch?v=mo8uzlImM1E&t=2s

https://docs.arnoldrenderer.com/display/A5AFCUG/Imager+Denoiser+Oidn

[mphillips0007]

@lee_griggs 

Thanks so much for your help.

[mphillips0007]

@lee_griggs 

Lee just wanted to say thank you again for sharing.  Using this noise reduction is amazing and such a time saver.  

[lee_griggs · Accepted solution]

Glad to hear it!