8

VertexPaint Modifier 921
Vertex Color is one item on a drop-down list.
The other items are Vertex Illumination, Vertex
Alpha, Map Channel Color (which uses the
spinner immediately below the list), and Soft
Selection Color. V iewports can display only
one of these vertex channels at a time.
3. Click OK.
To r ender vertex color s:
1.
Open the Material Editor, and apply a
Standard material to t
he object.
2. Click the map button fo
rtheDiffuse
component.
3. In the Material/Map Browser, choose Ver tex
Color as t he map, and then click OK.
Now, when you render the scene, the rendering
shows the painted ve
rtices.
To animate the opacity of a vertex color layer
1.
Choose the layer you wish to animate, by
highlighting the Vertex Paint modifier in the
stack that corresp
onds to that layer.
2. Tur n on th e Auto Ke y
button.
3. On the floating ver
tex paintbox, in the Layer
group move the Opacity slider.
This sets a key for t he opacity.
4. Movethetimeslidertoanotherframeand
again change the value us ing the Opacity slider.
5. Click Play to see the animated opacity in the
viewport.
To animate vertex color using UV W XForm modifier:
Yo u c a n u s e t h e U V W X F o r m m o d i f i e r i n
conjunction with a specific vertex paint layer to
modulate vertex c
olor effects in the viewport.
1. Apply a UVW XForm
modifier directly above
the VertexPaint layer (modifier) you want to
modulate.
2. Set the Channel type on the UVW XForm
modifier to Vertex color.
3. Animate the U, V, and W spinners using
identical values. For example, animate UVW
from 1 to 0 over the length of the animat ion.
This will attenuate the RGB values of the
underlying vertex color results uniformly. It
will effectively dim out the vertex color result
directly below the UVW XForm modifier.
Note: Any additional vertex paint layers applied
above the UVW XForm modifier in the stack
for the selected object(s) wil l be unaffected
Tip: Yo u c a n a d d m u l t i p l e U V W X F o r m
modifiers in your stack in this way, giving some
progressive control over modulated vertex
colors. The effect is always additive, however,
and cannot be weight-blended.
To pa int u nder a n ex is ting l ayer and v iew the res ult:
1.
Select an object that has several VertexPaint
modifiers displayed in the stack.
2. In the modifier stack, activate the VertexPaint
modifier that is the layer you want to paint on.
3. Tu r n on the Show End Res ult to g g le.
Now, when you pa int on the layer, you will see
the painting taking place under the top layer.