I'm helping a friend of mine with an issue she has with mental ray in Maya 2015.

When she's trying to render she gets the error "// Warning: (Mayatomr.Scene) : output data type "rgba_h" not directly supported by image format iff, conversion performed by mental ray"

We looked a bit a found something about the framebuffer but that changed nothing. We also tried uninstalling Maya 2015 and reinstalling it.

She's working on her demo and it's getting urgent.

https://imgur.com/fpT0r16
https://imgur.com/Zw4EL1w