I am rendering a 3d head and I want the eyes and lips, which have different shaders, to reflect different HDRI images.

I am currently using a mentalrayIbl node to reflect the image, but obviously this is reflected in any reflective object.

What I want is to have 2 mentalrayIbl nodes each reflecting in a different objects material.

Am I going about this in the right way.

Any suggestion greatfully received.