Opacity Channel for Fast SSS

[Patrick_Coan]

It looks like there is no opacity channel for Fast SSS.
I have a character that has unsightly mesh penetrations with clothing and one solve was to assign a blend material with fully transparent vraymtl as the base, add the SSS to the first coat and a opacity map for those penetration problem spots.
Then I notice the SSS shader is not liking this, it loses it's volumetric qualities and turns into something like glass with a single bounce and no scatter...

Any other approaches that you know of to mask the Fast SSS opacity? I'm probably overlooking a simple fix.
For the time being, I am selecting polygons and assigning a clear shader.

[Morbid Angel]

You can use AlSurface shader which has built in opacity, it should do what you need.

[asundaysmonday]

We have used this setup in the past.

A blendMtl with a sssMtl and transparent vrayMtl attached. Then you can use a file to mask out unwanted poly's.