Transparency and Transmit AOV

[Macbeth Rene R.]

Hi Guys, I'm just moving to Maya 2017 and Arnold 5, so forgive me if I'm missing something obvious.

My issue right now is trying to get mattes from objects through transparency and/or transmission, preferably using AOVs instead of creating a new render layer, this is to be used in eyes through eyeglasses, or eyeballs through corneas.

I'm using the last version of alShaders-win-2.0.0b2-ai5.0.1.0   but I'm using Arnold core 5.0.1.2.

So I have two questions:

1 -  Transparency seems to be not working, as it was doing in Arnold 4, I saw that this was a known bug but is was fix, is this maybe related to the core version I'm using? 

2 -  In alShaders Surface there was this option "Transmit AOV", that I could enable to achieve this, does this has been ported to Arnold 5? It has a different name? If not is there a way to use this through light paths or OSL? or any utility shader plus writeColor?  

Thanks!

[Macbeth Rene R.]

Hi I'm very sorry transparency is actually working, only the render didn't look they way it was looking in Arnold4 so I got confused, but once I put it in Nuke, it pulled out the matte with the correct transparency, can I have some insight of how this is being achieved?  

Thanks.