2011

Table Of Contents
Blend & Comp
The Blend & Comp tool is used to composite front and back RGBA images.
While most compositing tools composite a front layer over an opaque
background under the direction of a matte image, this tool offers full support
for RGBA images, both for the front and back inputs, and computes an RGBA
result.
You can specify a compositing operator to control the shape of your output
and a blend mode to determine how the front and back are combined in the
areas where they overlap.
The Blend & Comp tool is in the Composition folder in the Tools tab, and
has the following parameters:
To:Use:
Multiply the front by a color factor prior to using it in the blend. The
default is 100%; the range is [0,10].
Front Gain
Control the opacity of the front in the compositing. If the opacity is less
than one, the front will be more transparent and you will start seeing
the back through it. The default is 100%; the range is [0,1].
Front Opa-
city
Multiply the back by a color factor prior to using it in the blend. The
default is 100%; the range is [0,10].
Back Gain
Control the opacity of the back in the compositing. If the opacity is less
than one, the front will be more transparent and you will start seeing
the back through it. The default is 100%; the range is [0,1].
Back Opacity
Determine which compositing mode will be used (the default is
Over)see Compositing Operators on page 352.
Comp
Determine which blend mode will be used (the default is Normal). Click
the Blend button to view other available modessee Blend Modes on
page 345.
Blend
Blend & Comp | 367