8

898 Chapter 22: Customizing the User Interface
Texture Correction—
Redraws the viewport using
pixel interpolation (perspective-corrected).
Theredrawnimageremainsuntilyouforcethe
viewport to redraw for any reason. This command
has an effect only w hen the viewport is shaded and
at least one object’s map is displayed.
Z-Bu ff er W ir ef ra me Obj ects—Draws the wires
ordered according to depth in the scene. Otherwise
wires may be drawn out of order to speed the
viewport display. This option is generally needed
only when sub-object selections are "hidden" by
lines drawn out of order. For example, you select
the front edges of a box, but they don’t appear
highlig hted in red, because the w hite lines from
therearmaygetdrawnlast.Activatethisonlyif
you find that selections are obscured or if you need
the viewport redrawn from back to front.
Force 2-Sided —Set to render both sides of faces.
See
2-Sided (page 3–995) .Turnofftorenderonly
faces with
normals (page 3–1074) toward the
viewer. Usually, you’l l want to keep this option off
tospeedredrawtime.Youmightwanttoturniton
if you need to see the inside as well as the outside of
objects, or if you’ve imported complex geometry
in which the face normals are not properly unified.
Default Lighting—Turn on to use de fault lig ht ing .
Tu rn off to use the lights created in the scene. If
no lights exist in the scene, the default lighting is
used automatically, even when this check box is
off. Default=on.
Sometimes the lighting you create in the scene
makestheobjectsdifficulttoseeintheviewport.
The default lighting displays the objects under
an even illumination. You can select either 1 or
2lights(default).
•
1Light—Provides an over-the-shoulder light
w ith 20% faster redraws at the expense of less
natural i llumination.
•
2Light—Provides more natural illumination,
butslowerviewportperformance.
Sha de S elected Faces—Faces selected in the
viewport are displayed in a red semitransparent
statewhenthisisturnedon,lettingyouseethe
faces you’ve selected when the Shading Mode is
Smooth+Highlighted.
Use S election B rackets—Toggles the display of
white selection brackets in the viewport display.
Turn this off in complex scenes when the display of
multipleselectionbracketsobscurestherequired
view of selected objects.
Displ ay S elected wi th Edged Fa ces—Toggles the
display of highli g hted edges for selected objects
when the viewport is in a shaded mode, such as
Smooth, Smooth+Highlights, Facets+Highlights,
orFacets.Whenoninthesemodes,thewireframe
edges of selected objects appear along with the
shaded sur faces. This is helpful when selecting
multiple objects or smal l objects.
V i ewpor t Clipping—When turned on, interactively
setsanearandfarrangeforviewportdisplay.Two
arrowsattheedgeoftheviewportallowyouto
determinewheretheclippingwilloccur. Tick
marks correspond to the extents of the viewport,
the lower tick is the near clipping plane, and the
upperticksetsthefarclippingplane.Thisdoesnot
affect the rendering to output, only the view por t
display.
Fas t View N th Faces—When turned on, speeds
screen redraw by displaying fewer faces. The Nth
Faces spinner sets the number of faces that are
displayed when the Fast View mode is active. For
example, a setting of 3 displays every third face.
Perspective User View group
Fie ld O f Vi ew —Sets the field of view angle for a
Perspective viewport. This spinner is not available
when any other view port type is ac t ive. You can
change the Camera field of view in the Modif y
panel.