October 2017
Intermediate to advanced
568 pages
11h 8m
English
Content preview from Mastering Unity 2017 Game Development with C# - Second Edition
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Precomputed global illumination
The problem with baked lighting is its static and unchanging nature. After a lightmap is baked, it cannot be changed without rebaking. In contrast, the problem with dynamic lighting is its performance-intensive nature. Light calculated in real time demands a lot of resources and processing time. Since Unity 5, Unity offers a middle-way solution known as precomputed global illumination (GI). This system lets you recompute (bake) significant lighting data about how light bounces around in the scene, and yet retain the ability to change scene lights at runtime. In short, with precomputed GI you can move lights and change their color and intensity at runtime, and all lighting changes take effect in the scene soon ...
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