title: Set the camera on Maya's vray render
body: <p>In Autodesk Maya, when I click on Display Render Settings button, there is an attribute called <strong>Renderable Camera</strong>. 
  I need to set the right camera in this attribute via MEL script but I can't find the name of this attribute (I'm not even sure which node has this attribute in a first place). 
  Can anyone help me on this? Thanks!</p>