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The Multi-Light section of the Image Layers group of settings.
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An example of how this feature can be used is detailed in Multi-Light Rendering.
The elements of Turning on the multi-light list are presented as follows:
Environment
Selecting this will produce an image layer with the light contribution of the Environment, as set in the Scene Elements section; this item is insensitive when no environment is set in Scene Elements.
Groups
Lists the Maya sets that have light sources as members. Selecting one item under Groups will produce an image layer with the light contribution of every light source in the Maya set.
Lights
Lists the light sources that are not in any Groups.
By default, the Lights section only offers light sources that are not members of any Light Groups. This is the default behaviour because attempting to composite lighting elements which have light sources repeated will yield incorrect results. Turning on Display All Lights will list every light source under Lights, even those that are Light Group members.
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Compositing together a light group layer with a light layer of one of its members will yield incorrect results. |
value will render all layers with each of the lights used (It can also be Environment).
Multi-Light list supports interactive update in Click Refresh to force a Multi-Light list content update in case you added, removed or renamed some light sources.