To activate the mental ray renderer for the entire scene

1. Do one of the following:

   • The Render Manager > Scene Render Options

     or

   • From the Render toolbar, choose Render > Render > Scene Options

2. On the Scene Globals tab, set the Scene Renderer to mental ray.

To activate the mental ray renderer for a pass

1. Do one of the following:

   • The Render Manager > (select a pass)

     or

   • Set the current pass and choose Render > Render > Pass Options or Pass > Edit > Edit Current Pass from the Render toolbar.

2. On the Output tab, set the Pass Renderer to mental ray.