However, light can also bounce to other surfaces, not just to your eyes. That’s what we call direct lighting and we have been doing that in graphics pretty well for decades. Sunlight hits the surfaces and part of that light is reflected into your eye. The reason you can see surfaces is because of the light coming from the sun. The next time you go out during daylight, pay attention to the world around you. It’ll help you understand why you need this effect in your Unity game. Let’s first bring the topic of ambient occlusion to the real world.
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