Maya Surface Shader

[UCDenver]

We are trying to have a half dome sphere show up in the background of a rendering. We just want the image to show, not contribute to GI, lighting OR be effected by the sun and its shading or shadows. We normally make a Maya surface shader and it just renders. We've tried a Vraymtl ported into the VrayWrapperMtl's base slot, turned off GI, but the sun is still causing the dome to be shaded and effected by the lighting.

[Morbid Angel]

You would need to uncheck - cast/receive shadows in render stats for the sphere, furthermore you probably would have to reverse the normals on the sphere. I typically use vray light material, for such things, you don't need to put a wrapper on it. If you wish for the object not to contribute to gi you need to add vray object properties node to it and uncheck those options there.