https://i.ytimg.com/vi/tuJmH5aeHaA/hqdefault.jpg

In latest Version of Arnold 2.0 for Maya Release Date
April 12, 2017 U can create Light group without using any 3rd Party shader such as Alshaders
You want more control over the lights. Wanna create separate light passes then Light Group Aov is the only option

Thank you for watching:
http://www.pamulighter.com/blog.html

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