You can access the Create
Render Passes window by selecting mental ray as your
renderer, then selecting the Passes tab,
and clicking the New Pass 
button.
- Pass List
-
Select, from the list,
the render passes that you want to create. You can multi-select
render passes by shift-clicking or control-clicking.
All render pass presets
that you have created are also available from this list.
Name Presets
- Pass Prefix / Pass
Suffix
-
Add a prefix or suffix
to the render pass names of the passes that you are creating.
- Create Pass Set / Pass Set
Name
-
Select the Create
Pass Set option to create a new pass set. All render
passes that you created simultaneously with the render pass set
are automatically associated with the set.
- Create and Close / Create
-
Click the Create
and Close button to create the selected render passes
and close the Create Render Passes window.
Click the Create button to keep the Create
Render Passes window open and create multiple versions
of the selected passes.
