What would cause a fallback on CPU for denoising?

Art48

Senior Member

Join Date: Mar 2014

Posts: 1202
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#1

What would cause a fallback on CPU for denoising?

10-06-2016, 05:41 AM

I just noticed that I am at 99% CPU when the denoiser runs but hardware accelleration is checked.
Does the denoiser need any specific driver for NVIDIA cards? I got a relatively recent one but not the newest.
What else could cause the fallback to CPU mode? (On a side note since I didn't immediately notice it - is there a log notification from the denoiser? If not can we get one?)

Software:
Windows 7 Ultimate x64 SP1
3ds Max 2016 SP4
V-Ray Adv 3.60.04

Hardware:
Intel Core i7-4930K @ 3.40 GHz
NVIDIA GeForce GTX 780 (4096MB RAM)
64GB RAM

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vlado

Lead Developer

Join Date: Apr 2003

Posts: 36228
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#2

10-06-2016, 07:07 AM

Check the V-Ray log file or the V-Ray messages window and see what's in it. It should say what's the reason for the CPU fallback. If you are not sure, attach the log here and we'll take a look.

Best regards,
Vlado

I only act like I know everything, Rogers.
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