In order to start a render, it is necessary to have at least one render pass defined. There are several ways to create a new Render Pass:
Using the Maya -> 3Delight menu
Creating a render pass can be done uusing the various items found in the following Maya menu:
3Delight -> Create Render Pass
Selecting this menu item will create a new Render Pass node with all available attributes, set to their default values. The new render pass is selected upon creation, and displayed in the Attribute Editor.
3Delight -> Create Render Pass From Template -> ...
This item displays a sub menu listing all existing Render Pass Templates. Selecting a template will create a new render pass with using only the template's attributes and their values. See
Using the 3Delight Shelf
Create Render Pass shelf button
Left-clicking on this shelf button will create a new render pass node with all available attributes set to their default values. See Create Render Pass shelf button for details and right-click operations.
Using the Maya Render Settings window
In the 3Delight tab, clicking on the Create Render Pass button will create a new render pass node with all available attributes set to their default values. See The 3Delight Render Settings for details.