8

922 Chapter 8: Modifiers
Inter face
Parameter rollout
Selection group
Thecontrolsinthisgroupareidenticaltothe
selection controls found in the
Selection group
(page 1–928)
of the Paintbox rollout.
Channel group
These controls specify which channel type the
vertex paint layer will affect, and which map
channel number you’ll paint on.
•
Vertex Color—Choose this to paint on a vertex
color layer.
•
Vertex I llum—Choose this to paint on a vertex
illumination layer.
•
Vertex Alpha—Choose this to paint on a vertex
transparency layer.
•
Map Cha nnel—Choose this to paint on a
specifically named or numbered map channel.
Ma p channel spinner —Specifies the channel
number. Available only when Map Channel is
chosen.
Note: If you have painted on a layer and then change
the channel setting, the painted information will
be moved to the new channel. For example if you
select Vertex Color a nd paint, then turn on Vertex
Illum,thepaintedinformationwillberemoved
from the Vertex Color channel and applied to the
Vertex Illum channel instead.
Name—If a channel has a name defined it will
appear here. Channels can be named using the
Channel Info Utility (page 2–1549) .
Ignore under lyi ng color—When tur ned on,
Ver texPaint ignores whatever vertex colors it
receives from below it on the stack. As a result,
you will see the layer’s raw colors on an other wise
whiteobject. Theblendmodehasnoeffect(it
behaves like Normal mode) because the base
color is considered transparent, so the layer is not
blended with anything.
Thepurposeofthistoggleistoisolatealayer
from the colors below, to help the user visualize
thelayer’srawdata. Thelayerisnotcompleted
isolated when this is on, because layers above it
can still affect the result. The user needs to disable
those layers or turn off Show End Result to see the
current layer in complete isolation.
TheIgnoreBaseColortoggleshould
only be
needed when the object at the b ottom of the
stackalreadyhassomevertexcolorsbakedin.In
other cases, you can just disable the paint layers
or whichever modifiers are adding vertex colors
to the object. In that case, the active paint layer
would not receive any vertex colors from below
itself on the stack. As a result, it treats a ll base color