Pixelated renderings, Arnold not doing all passes

[Anonymous]

All my images are like that, pixelated, it seems like Arnold is not doing the final passes to eliminated the pixels. My computer is new, 18 cores, plenty of memory. Windows 10. Maya 2019. What should I do? Thank you

[Anonymous]

Even just a sphere looks like this:

[Stephen.Blair]

What version of MtoA? The very latest?

[Anonymous]

MtoA 4.0.2, Arnold 6

[madsd]

Crank up the samples, SSS for example as it looks like you are doing some skin.

Default render settings are not guaranteed to render noiseless in all situations.

[Anonymous]

Much better with higher sss sample, but it takes a long time to render. I saw a video where the guy gets better results with less samples and faster.

[madsd]

Depending on your gear, and the light samples, it can be from slow to fast.
If you have 2 core machine and no Nvidia card, its not so good.

If you have decent amount of Cores & Nvidia card, you should be able to knock out previs pritty fast, you need to enable OptiX denoiser but it only works if you have an nvidia card.

Else you can see if you have other types of samples that are too high.
Camera AA should not be high, lower it to 3 for example.

Enable Adaptive sampler and set 12 for example in max and work with the adaptive threshold settings, its all settings beneath the sample section.

[lee_griggs]

Yes, you will need higher SSS samples which will take longer to render.

Tutorials about removing noise can be found here.

[Anonymous]

That was very helpful, thanks a lot Lee!!!