Hi everybody

I am a bit stumped. I have a simple scene lit with MR sun and sky. The default setup uses a mia_exposure_simple node connected to the lens shader of the cameras as well as the mia_physicalsky node. Specifying a background image on the physicalsky node (mib_lookup_spherical + mentalray_texture) works like a charm.

The moment I swap out the mia_exposure_simple node with a mia_exposure_photographic, the scene objects renders ok but the background is black. What am I missing?

The RGB unit conversion is set to 0.318