8
716 Chapter 8: Modifiers
Effect of M e shSmooth with two iterations on a cube and
different iteration method:
A. NURMS
B. Quad
C. Classic
D. Orig inal object with no MeshSmooth
Subdivision Amount rollout
SetshowmanytimestoapplyMeshSmooth.
Iterations—Sets the number of times the mesh is
subdivided. When you increase this value, each
new iteration subdivides the mesh by creating
smoothly interpolated vertices for every vertex,
edge, and face from the iteration before. The
modifier then subdivides the faces to use these
new vertices. Default=0. Range=0 to 10.
Thedefaultvalueof0iterationsallowsyouto
modify any setting or parameter, such as the type
of MeshSmooth or the update options, before the
program star ts subdividing the mesh.
Note: Be cautious when increasing the number
of iterations. The number of vertices and faces
in an object (and thus the calculation t ime) can
increase as much as four times for each iteration.
Applying four iterations to even a moderately
complex object can take a long time to calculate.
You can press ESC to stop calculation; this also
automatically sets Update Options to Manually.
Reduce the Iterations va lue before setting Update
Options back to Always.
Smoothness—Determines how sharp a corner
must be before faces are added to smooth it.
Smoothness is calculated as the average angle of
all edges connected to a vertex. A value of 0.0
prevents the creation of any faces. A value of 1.0
adds faces to all vertices even if they lie on a plane.
Tip: To subdivide only sharp edges and corners,
use a Smoothness value of less than 1.0. To see the
subdiv isions in Wirefr ame/Edged Faces viewpor ts,
turn off
Isoline Display
.
Render Values—These let you apply a different
number of smoothing iterations and a different
Smoothness value to the object at render time.
Typically you would use a low number of iterations
andalowerSmoothnessvalueformodeling,
and higher values for rendering. This lets you
work quickly with a low-resolution object in the
viewports, w hile producing a smo other object for
rendering.
Iterations—Lets you choose a different number of
smoothing iterations
to be applied to the object at
rendertime.TurnonIterations,andthenusethe
spinnertoitsrighttosetthenumberofiterations.
Smoothness—Lets you choose a different
Smoothness value to be applied to the object at
rendertime.TurnonSmoothness,thenusethe
spinnertoitsrighttosetthesmoothnessvalue.