Material Based Sampler override

[ricoholmes]

Not sure of the technicalities of this, but many times I've wished there was an override on materials for the "threshold[]" on DMC sampling.
Often grain that is perfectly acceptible one material needs to be rendered very expensively because another material in the scene needs the (global) threshold higher.

[super gnu]

ye ive been asking for a variation of this for quite a while. my problem is distance shimmer in masterplan animations. to clean that you need a super low noise threshold, and that means materials and glossies in the foreground get sampled waaaay too much.

my idea is to have the noise threshold mappable. that way you can use a zdepth pass to control it, or a mask for a particular object / material. do-able apparently, but not high on the priority list i suspect..

[super gnu]

oop.. just realised we are in the maya forum.. well same same really.. i was talking about max.

on a related note, for your situation, cant you simply increase the local subdivisions on that material? if you crank it high enough it should clean up way before the noise thresh. is reached, meaning your sampling would be more balanced.