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About Raytracing

Achieving realistic renders often requires reflections and refractions. To achieve these effects, you must turn on raytracing. Although renders can take significantly longer with raytracing on, they look much more realistic.

When you can see other objects in an object’s reflection, the light rays are bouncing off one surface and then bouncing 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 15.46).


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