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638 Chapter 8: Modifiers
Break (B)—
Separates all selected, unified normals
into their original components. With Unify/Break
To Average off, Break orients each separated
normal per pendicular to its respective face, thus
splaying out the normals at each vertex if the
connected faces are at different angles (as with a
sphere). With Unify/Break To Average on, each
separated norma l uses the orientation of the
original normal.
Break converts any selected normals to specified
normals.
Unif y/Br eak to Aver age—Determines normal
orientation as the result of a Unify or Break
operation. See the descriptions above for details.
Default=off.
Average group
These controls give you different methods of
averaging vertex normals; that is, setting them a ll
tothesameabsoluteangle,whichistheaverageof
their combined angles.
Selected—Sets selec ted norm a ls to the same
absolute angle: the average angle of all of them. If
Use Threshold is on, averages only normals whose
distance from each other is less than that specified
in the Average Threshold spinner (to the button’s
right).
Use T hres hold—Activates the Average Threshold
setting , and causes the S elected to average only
normals whose distance from each other is less
than the specified value.
Target—Enters an interactive mode in which you
specify pairs of normals to average. Click Target,
andthenselectanormal.Whenthemousecursor
is over a normal, it changes to a + cursor. After
clicking the first normal, a rubber-band dashed
lineconnectsthenormaltothemousecursor.
Click a second normal to average the angles of the
two normals.
The pixels spinner to the r ight of the Target
button sets the maximum distance in screen pixels
between the mouse cursor and the target normal.
Co py Value (Ctrl+C)—Copies the selected normal ’s
orientation to the copy buffer. Available only when
asinglenormalisselected.
Use Copy Value and Paste Value to apply a
normal ’s orientation to one or more others within
thesameEditNormalsmodifier.Youcannotcopy
normals between mo difiers.
Pas t e V alu e ( Ctrl +V) —Applies the paste buffer
contents to the current selection. Available only
after Copy Value has been used to place a normal’s
orientation in the copy, and one or more target
normals are selected.
Specify (S)—Conver ts selected normals to specified
normals.
Reset (R)—Ca uses all selected normals to revert to
unspecified status, and returns them to their init ial,
calculated positions. Also breaks apart unified
normals.
Mak e Ex plicit (E)—Converts selected normals to
explicit normals.
[S election Di spl ay ]—When one normal is selected,
shows its ID number. When 0 or more than one
normal is selected, shows the number of normals
selected.
Edit Patch Modifier
Create or select an object > M odify panel > M odifier List
>Object–SpaceModifiers>EditPatch
Create or select an object > Modifiers menu >
Patch/Spline Editing > Edit Patch
The Edit Patch mo difier provides editing tools for
different sub-object levels of the selec ted object:
vertex,handle,edge,patch,andelement.TheEdit
Patch modifier matches all the capabilities of the