Full_adaptive

Hi,
Full adaptive preset always use an adaptive amount = 1.0 (see vray settings tab-->Vray::DMC sampler)

This means that global GI/glossies quality is handled by only 2 main parameters (in the same section) :
- Noise thr (0.003 for medium and 0.001 for production).
- global subdivs multiplier.

It's experimental because it's a different approach for rendering with vray, but need more testing. And i'm not sure it's a working way...
Sometimes it gives good and fast results, sometimes it gives some splotches (interior) and takes more time to render, with some grain remaining.
To help it, i suggest to increase global subdivs multiplier value in preset (for example 2-6 instead of 1-4 for medium/prod settings)

I've putted it into SR because i believe that some technical users will try to improve it, just to see if it can be a good solution;)