Lighting Planner
The Lighting Planner provides an advanced method for baking the illumination of a scene when using lightmaps. In the simple baking scenario, the layers and the surfaces to light can be selected, but lighting is calculated in a single step. Using the Lighting Planner, lighting can be calculated in as many steps as necessary.
The advantage of multiple-step calculation is the variety of lighting scenarios that can be calculated, which makes it possible to use lightmaps to light scenes containing animations or multiple geometry positions.