The Light Layer plug-in applies lighting to a certain group of containers.

Every light has a light layer property, the light with its corresponding bit-wise layer number is only applied to the light layer group.

Light Layer Properties

• Mask (1-8): Selects a bit-wise mask on what lights are being applied to this container. If you have two spotlights within your scene, a layer can be set for each single light. You can choose if your geometry is lit by Light 1, Light 2 or both.