Noise issues when switching to VRay Sun

[Chad Warner]

I ran through a gamut of threads and suggestions here and on the chaos group site, and finally figured out some settings for getting rid of noise that worked, which are as follows:

 

Adaptive QMC, Quadratic filter,

 

IR map set to "low" with 20 subdivs and 30 samples

 

No secondary bounce.

 

rQMC sampler: adaptive amount set to .85, noise threshold at .008, min samples 8, global mult. @ 1.

 

adaptive rQMC image sampler, min 1 max 5 use QMC sampler thresh is checked.

 

 

These settings were working fine with a standard Target direct light. As soon as I switched to a Vray sun, all the noise came back. Does anyone have some suggestions for settings that won't kill me at render time?

 

Thanks,

 

Chad