Originally Posted by RockinAkin
Yes, very! But I think I've got it!
So 'Min Samples' is better thought of as 'Adaptive Min Samples' (as it is actually labeled in Maya, but not in 3ds Max).
So using your example:
If after the DMC subdivision formula we're left with 100 max secondary samples, and adaptiveness is set to 1.0, this results in 0 fixed samples - which is lower than the default Min Samples value of 8, so Min Samples takes effect and fires 8 samples before the remaining 92 samples are fired one by one to meet the noise threshold.
If with those same 100 max secondary samples adaptiveness is set to 0.5, this results in 50 fixed samples, which is larger than the default Min Samples value of 8, so Min Samples has no effect, and the remaining 50 samples are fired one by one to meet the noise threshold.
But in a case when the max secondary samples is very low, it sets the ceiling for number of adaptive samples to be taken, and the Min samples value has no effect.
This is correct, you got it. I will probably release V2 of that same tutorial sometime this year, and maybe we can include your calculator with it, with proper copyrights etc.