Bucket size has to be a power of 2

2,4,8,16,32,64,128,256

But the default 32 is still the best.

MSR ?  0.05??? Ola, that is close to infinite. Gonna take a lôoooooooooong render time.

Going below 0.2, you have to set this on ALL groups in your scene.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
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