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To set clipping planes:
1 Turn on Clip Manually.
When Clip Manually is off, the camera ignores the location of the Near
and Far clipping planes, and their controls are unavailable. The camera
renders all geometry within its field of view.
2 Set the Near Clip value to position the near clipping plane.
Objects closer to the camera than the Near distance are not visible to the
camera and aren't rendered.
3 Set the Far Clip value to position the far clipping plane.
Objects farther from the camera than the Far distance are not visible to
the camera and aren't rendered.
You can set the Near clipping plane close to the camera so that it doesn't
exclude any geometry, and still use the Far plane to exclude objects.
Similarly, you can set the Far clipping plane far enough from the camera
that it doesn't exclude any geometry, and still use the Near plane to
exclude objects.
The Near value is constrained to be less than the Far value.
If the clipping plane intersects an object, it cuts through that object,
creating a cutaway view.
5214 | Chapter 18 Lights and Cameras