Ambient Pass with MR materials Maya

#1

Hi! Everyone!
I’ve been trying to get Ambient Pass in Maya 2012 with Ambient Light
(Ambient Shade set to 0.)
It works fine with standart materials, but when I use mental ray’s materials it’s always black color.
Help me please. Thanks in advance!

#2

When using mia materials and you want to get an ambient pass, you need to have environment lighting setup i.e. IBL.

#3

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