Why does this happen?

gsil247

I'm getting a bunch of white spots as well as some real fuzzy area stuff. Take a closer look around the stomache and cleavage area and you'll see what I mean. Not sure this happens, but how do I stop it from happening? I've also attached my settings. Let me know what I can do as any and all help is appreciated.

 

Thank you for your time. 

zombietaggerung

Your render quality is set to 10. That setting increases render time exponentially. I would turn it off. As well as set render time to 0, so that the max # of samples is the only thing telling Iray how long to run.

gsil247

Well is not the time I'm worried about, because I can have the thing running all night for all I care. But will that effect the white spots I'm seeing? Thats all I really care about, quality over time. 

Fishtales

Add a few zeros onto the Max Samples and Max Time.

Turn the Render Quality down to 1, you can always turn it up gradually if you want once you get rid of the noise.

Turn down the Converged ratio as nVidia recommends not to render at 100% using Iray.

Turn on the Firefly Filter.

Set the Noise Degraining Filter at 3; Radius 2; Blur Difference 0.20.

Set Pixel Filter to Mitchel; Radius 1.20. You can change this up or down if you see too many artifacts or it softens edges too much.

These settings aren't set in stone they just work for me.

Loony

also if you use post denoiser the full image get clean :)

Hylas

You just need to render longer. Set max time to 0 (= unlimited) and let it run over night.

If you have a render in which only one specific area is still grainy, youcan use spot render in new window to re-render just that one area and combine the results is Photoshop or GIMP.

gsil247

Fishtales said:

Add a few zeros onto the Max Samples and Max Time.

Turn the Render Quality down to 1, you can always turn it up gradually if you want once you get rid of the noise.

Turn down the Converged ratio as nVidia recommends not to render at 100% using Iray.

Turn on the Firefly Filter.

Set the Noise Degraining Filter at 3; Radius 2; Blur Difference 0.20.

Set Pixel Filter to Mitchel; Radius 1.20. You can change this up or down if you see too many artifacts or it softens edges too much.

These settings aren't set in stone they just work for me.

Much better. Thank you for this, and thank you to everyone who responded. 

 

Stay safe.