CD Projekt RED and Umbra Software team up to talk about next gen graphics technology.
Occlusion Culling is a old graphics technique. Basically what it does is not render what is not visible to the player. An example is a barrel behind a shed. Without Occlusion Culling the barrel will still be rendered, thereby wasting GPU cycles. With Occlusion Culling the barrel will not be rendered, thereby saving GPU cycles to be used else ware.
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