9

1378 Chapter 15: Lights and Cameras
Top: Conceptual image of the Near and Far ranges.
Bottom: Result after re ndering.
Clipping Planes group
Sets options to define clipping planes (page 3–921).
In viewports, clipping planes are displayed as red
rectangles (with diagonals) w ithin the camera’s
cone.
Clip Ma nually—Turn on to define clipping plane s.
When Clip Manually is off, geometry closer to the
camera than 3 units is not displayed. To override
this, use Clip Manually.
Near Clip and Far Clip—Sets near and far planes.
Objects closer than the near clipping plane or
far t her than the far clipping plane are invisible to
thecamera.ThelimitoftheFarClipvalueis10
to the power of 32.
With manual clipping on, the near clipping plane
canbeasclosetothecameraas0.1unit.
Wa rn in g : Extremely large Far Clip values can produce
floating-point error, which can cause Z-buffer problems
in the viewport, such as objects appearing in front of
other objects when they shouldn’t.
Conceptual image of Near and Far clipping planes.
Multi-Pass Effect group
These controls let you assign a depth-of-field or
motion blur effect to the c amer a. When generated
by a c amer a, these effects generate blurring by
rendering the scene in multiple passes, with
offsets. They increase rendering time.
Tip: T he depth-of-field and motion blur effects are
mutually exclusive. Because they rely on multiple
rendering passes, applying both to the same
camera could be prohibitively slow. If you want to
use b oth depth-of-field and motion blurring in the
same scene, use multi-pass depth-of-field (using
these camera parameters) and combine it with
object motion blur (page 3–981).
Enable—When on, previewing or rendering uses
the effect. When off, the effect is not rendered.
Prev iew—Click to prev iew the effect in an act ive
camera viewport. This button has no effect if the
active viewport is not a camera view.