I have a problem with rendering from command line. I use Maya 2012.
If I change my output file format in render settings to "PNG" and run from console: "Render.exe scene.ma", it renders all my passes with png extensions.
However, if I change output file format to "mentalray Depth (zt)" and run same command from console, it still renders png files. Batch rendering from Maya itself (Menu Render->Batch Render) creates zt files and no png files.
I need to render zt depth images from console to automatically render a lot of scenes.