Chromatic Aberration is a type of distortion caused when a camera's lens fails to focus on all colors along the outer boundaries of an object, causing noticeable fringes of color. Due to this real-world manifestation, it's necessary to recreate this effect in Cg to add an extra level of realism to your shots. In this tutorial, Cyril Kotecky will show you how the effect can be added in post using After Effects to simulate the imperfect optics of a real world camera lens. He'll also show you how this can be taken to the extreme to create very stylized looks.
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