Fixed RGB export issue.
Fixed RGB export issue.

JosephCottam/AbstractRendering,JosephCottam/AbstractRendering,ahmadia/AbstractRendering,JosephCottam/AbstractRendering,ahmadia/AbstractRendering,ahmadia/AbstractRendering,ahmadia/AbstractRendering,ahmadia/AbstractRendering,JosephCottam/AbstractRendering,JosephCottam/AbstractRendering