Maya Mental Ray Mia_exposure_photographic not working with portal light
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Hello I have a 3d scene I'm working in Maya 2015 using Mental ray, I changed the simple lens to a mia_exposure_photographic lens. Then in the physical sky attribute I changed the RGB unit conversion to .318 on all three inputs. The problem is when I render a scene only the physical sun and sky render, but my area and point lights no longer render. Any help would be appreciated thanks.