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180 Chapter 5: Creating Geometry
Parameters rollout
The defaults produce a smooth, round tube of
18 sides with the pivot point at the center of the
base.Therearefiveheightsegmentsandonecap
segment. If you don’t plan to modify the cylinder’s
shape, such as with a Bend modifier, set Height
Segments to 1 to reduce scene complexity. If you
plan to modify the ends of the cylinder, consider
increasing the Cap Seg m ents setting .
Radius 1, Radius 2—The larger setting specifies
theoutsideradiusofthetube,whilethesmaller
specifies the inside radius.
Height—Sets the dimension along the central
axis. Negative values create the tube below the
construction plane.
Height S egments—Sets the number of divisions
along the tube’s major axis.
Cap Segme nts—Sets the number of concentric
divisionsaroundthecenterofthetube’stopand
bottom.
Sides—Sets the number of sides around the tube.
Higher numbers shade and render as true circles
with Smooth on. Lower numbers create regular
polygonal objects with Smooth off.
Smooth—When on (the default), faces of the
tube are blended together, creating a smooth
appearance in rendered v iews.
Slice On—Enables the Slice feature, which removes
part of the tube’s circumference. Default=off.
WhenyoucreateasliceandthenturnoffSliceOn,
thecompletetubereappears.Youcantherefore
usethischeckboxtoswitchbetweenthetwo
topologies.
Slice From, Slice To—S ets the number of deg rees
around the local Z axis from a ze ro point at the
local X axis.
For both sett ings, positive values move the end of
the slice counterclockwise; negative values move it
clockwise. Either setting c an be made first. When
the ends meet, the w hole tube reapp ears.
Gener ate Ma pping Coords —Generates coordinates
for applying mapped materials to the tube.
Default=on.
Real-World Map Size—Controls the scaling method
used for texture mapped materials that are applied
totheobject. Thescalingvaluesarecontrolled
by the Use Real-World Scale settings found in
the applied material’s Coordinates rollout (page
2–1625).Default=off.
Torus Primitive
Create panel > Geometry button > Standard Prim itives
>ObjectTyperollout>Torusbutton
Create menu > Standard Primitives > Torus
Torusproducesatorus,oraringwithacircular
cross section, sometimes referred to as a doughnut.
You can combine three smoothing options with