Lighting Pass noise

[francomanko]

Hi,

Just after some clarification really. I've attached a lighting pass and total light pass render. Is the level of noise in the lighting pass to be expected? The reason i ask is im rendering an interior and getting some really horrible GI spotches which i cant remember having this bad before (using a nightly build) and am trying to see if its to be expected or if I'm doing something wrong, so before I go too far i just wanted clarification on this.

Im using one of Peter Guthries HDR.

Render settings:

Min sub 1
Max sub 128
Threshold 0.01

IR 80, 40
LC 1500



Any help is much appreciated.

[Morbid Angel]

generally speaking the elements on their own can have noise, but in combination together they should look clean (which is what your right side render looks like) Its because the sampling is performed on the primary buffer (rgba) and not per element. 1/128 is quite high though, I wouldn't go this high. The noise in the black area means that the color threshold of 0.01 is clipping the samples in the really dark areas. To resolve something like this, you would either raise the light subdivs in older vray, or in new vray you can bring up the min subdvis, and lower the noise threshold.

The spolitchiness in gi which you mention is something else though, I would need to see an example of that problem.

[francomanko]

Thanks for the help, much appreciated.