Next: Stereoscopic Modes
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When you normally look at objects, your two eyes see slightly
different images (because they are located at different viewpoints).
Your brain puts the images together to generate a stereoscopic
viewpoint. When generating a single image for the computer display,
the default calculations (mode Stereo Off) assume there is
one eye centered between where two eyes would be.
For stereo, the left and right eye views need to be generated independently.
Choosing mode Left produces
the left eye viewpoint, while Right produces the right eye viewpoint.
The left and right monoscopic modes are most useful when exporting scenes
to external ray tracers.