noise in reflections?

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

What would be the most important parameter to change if you want to clear up noise in reflections of blurry reflections? (or reflections of reflections of reflections etc…)

The noise in 1 reflection is good. If I increase for example noise th in qmc sampler, it gets better, but also the noise in 1 reflection will get better, resulting in much higher rendertimes.

Maybe there is a parameter for this somewhere?

2

Lower the rQMC threshold (by small 0.001 decrements) and raise the subdivs for the reflected reflection.
Or, to avoid oversampling where unneded, just leave subdivs for both reflections at 1, and use a semi-universal settings approach.
It seems to me that will only sample where needed.

Lele