What is causing random portions of my Scene to Extremely noisy?

V-Ray V-Ray for 3ds Max Issues
1

hey all,

Noticing something strange rendering with V-Ray 7.2 Latest stable release. In the out of focus areas of my image, in a couple places I’m seeing spots that are randomly EXTREMELY noisy with a much larger noise pattern than the rest of the image. Here’s an example using a bucket render I did before canceling it:

beauty:

image.png
image.png1335×1221 484 KB

Beauty, but exposed down:
image.png
image.png692×723 233 KB
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Vray Reflection:

image.png
image.png715×699 93.5 KB
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This is visible in all of the passes. Interestingly, the VraySampleRate shows pure blue in those noisy portions of the render:

image.png
image.png764×654 75.3 KB
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It seems like Vray thinks these portions of the image are completely perfectly clean, when they’re the exact opposite. This happens in bucket mode and progressive. Any thoughts?

2

Hello,

Maybe the Adaptivity clamp parameter is set too low for your scene ? (it is in V-Ray for 3ds Max).

Best regards,
Yavor

3

That was it! Thank you!!