Vray render elements/ Maya Layers/ EXR.multi layer

[bobtype1]

Might be light down the tunnel...

https://forums.cgsociety.org/t/nuke-...l-exrs/1294860

[bobtype1]

i tested this out, and had mixed results, nuke tried to add a alpha layer to each of the 30 render elements, and not to the PNG of the shadow. which of course photoshop displayed as a stack
and there is still the end result, to Import to maya and use in the hypershade or node graph to split back into a series of images for multiple shaders or textures from one file. so you can send your scene down a pipeline, with only one file which can be reimported into the modeling/rendering program with all the connections intact. haven't tested that out yet in maya, am using 2016, seems that version is aimed more at the node graph and less hypershade so i will see.