Hey there,
so there is no "deep vs. beauty". It's simply a deepscanline image. I don't think it is even possible to mix
deep and non-deep images, is it?
Deep is not an additional set of information but it stores all of the regular information in a more granular way.
So there is both more data to read and you more "work to do" (to blend the individual samples) which makes
reading deep images slower. The amount of additional samples depends a lot on the type of image you have
motionblur, dof making things way worse and of course on the renderer's implamentation and if samples
are merged and how.
In the sample image the slowness is caused by the amount of samples that the mountains in the background
have. I ran this through an internal node to false-colour-code the sample count:
With the settings used red pixels represent “more than 50 samples per pixel (which is also per channel then).
Whereas you have hardly more than 2 samples per pixel in the foreground. It would be a lot more efficient to render
the mountains separate and non-deep if that is an option. I don’t know if Arnold has a way of forcing sample-merging
for some objects? That would be a possibility too.
Cheers,
Thorsten
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Thorsten Kaufmann
Production Pipeline Architect
Mackevision Medien Design GmbH
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