Shadow & Light
Unity's provides a highly optimized lighting system with realtime shadows and baked lightmaps. Use shadow and light to great effect, without worrying about the gritty technical details.
Realtime Shadows
Soft and hard realtime shadows can be cast from any light in the scene. A variety of strategies are used to make them really fast, and work even on old computers.
Lightmaps
Unity supports baked vertex lights and lightmaps, which are used to stunning effect in modern games. You bake light intensity into your 3D models, and this gets used as a base on which in-game lights work.
Cookies
Use light cookies for spotlights, point-lights and directional lights. They are great for patterned light such as the sun shining through branches.
Lens Flares
Make lights more visible by giving them flares. Make the sun burn the player's eyes beautifully.
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