Scene light

While constructing the scene, i noticed that after adding the water into my scene that the lighting after baking lost alot of its quality unsure why i googled it and found out afew interesting things. The one most important to me was Importance Volumes. Lightmass will calculate the light based on the whole scene, calculating bounce lighting etc for more realistic lighting. Now that larger the scene the more complex the baking becomes so the quality level soon drops to keep Lightmass from crashing. To prevent this Lightmass Importance volumes should be used to tell Lightmass where the most important areas of the level are so it can calculate that volume with more detail then the rest of the level.