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About Raytracing

Achieving realistic renders often requires reflections and refractions. Raytracing must be turned on to achieve these effects. It can make renders take significantly longer, but they look much more realistic.

When an object has other objects visible in its reflection, the light rays bounce off one surface, and then bounce off another surface and into your eyes or a camera lens. You need other objects in the scene in order to see a reflection of them; the object has to have something to reflect (Figure 14.46).


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