So I have this project in Maya 2013, I am trying to render a walkthrough through an interior (there are several lights in different places) with render batch in mental ray. Problem is when I render a still frame it looks perfect, when I do it with batch render the lights are not activated or something. It is not a camera problem because same thing happens with another camera and with perspective. It has something to do with mental ray because with maya hardware I don´t have the problem. This happens exporting to tga or tif, in jpg I dont get any image at all.