How Computers Create Convincing Light And Shade In Graphics

Creating rich, lush computer-generated images is no mean feat, and one of the most fundamental aspects is light and shade. This video explains how programmers and designers tackle that crucial problem.

It's a question of rolling together all kinds of data — from information about lighting sources to material properties and geometry — to create a convincing effect. Listen to John Chapman explain how it's done. [Computerphile]

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