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Learning Quartz Composer: A Hands-On Guide to Creating Motion Graphics with Quartz Composer by Surya Buchwald, Graham Robinson

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Chapter 10. Lighting and Timelines (The Dark Side of QC)

In this chapter, we come to grips with lighting a 3D object and using timelines. We also explore how Quartz Composer (QC) allows you to keyframe animation.

As you have been experimenting with cubes, spheres, and cylinders, you have probably noticed that they look a bit “flat” and unlike how these shapes would look in the real world. This difference arises because, when we look at an object in the real world, it is being lit from many different sources at once.

Even a simple building block sitting on a desk may have three or four light sources contributing to how we see it. Light may come in from any windows in the room, both directly and indirectly, and bounce off the walls, ceiling, and ...

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