Channel Mixer
Allows cross-mixing of red, green, blue, and alpha channels into one another. The Channel
Mixer filter’s main parameters are divided into four sections—Red Output, Green Output,
Blue Output, and Alpha Output—each of which manipulates an individual channel. In
each section, you can adjust the value of the relevant color channel added to or subtracted
from the red, green, blue, and alpha channels.
Parameters in the Inspector
Red - Red:
Sets the amount of input red added to the output red. The default value is
1.0, which leaves the red channel unmodified. As this value increases, the output value
of red increases by the amount of input red multiplied by the value of Red - Red.
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Red - Green:
Sets the amount of input green added to the output red. The default value
is 0, which leaves the red channel unmodified. As this value increases, the output value
of red increases by the amount of input green multiplied by the value of Red - Green.
Red - Blue:
Sets the amount of input blue added to the output red. The default value is
0, which leaves the red channel unmodified. As this value increases, the output value of
red increases by the amount of input blue multiplied by the value of Red - Blue.
Red - Alpha:
Sets the amount of input alpha added to the red channel. The default value
is 0, which leaves the red channel unmodified. As this value increases, the value of red
increases by the amount of input alpha multiplied by the value of Red - Alpha.
Green - Red:
Sets the amount of input red added to the output green. The default value
is 0, which leaves the green channel unmodified. As this value increases, the output value
of green increases by the amount of input red multiplied by the value of Green - Red.
Green - Green:
Sets the amount of input green added to the output green. The default
value is 1.0, which leaves the green channel unmodified. As this value increases, the
output value of green increases by the amount of input green multiplied by the value of
Green - Green.
Green - Blue:
Sets the amount of input blue added to the output green. The default value
is 0, which leaves the green channel unmodified. As this value increases, the output value
of green increases by the amount of input blue multiplied by the value of Green - Blue.
Green - Alpha:
Sets the amount of input alpha added to the green channel. The default
value is 0, which leaves the green channel unmodified. As this value increases, the value
of green increases by the amount of input alpha multiplied by the value of Green - Alpha.
Blue - Red:
Sets the amount of input red added to the output blue. The default value is
0, which leaves the blue channel unmodified. As this value increases, the output value
of blue increases by the amount of input red multiplied by the value of Blue - Red.
Blue - Green:
Sets the amount of input green added to the output blue. The default value
is 0, which leaves the blue channel unmodified. As this value increases, the output value
of blue increases by the amount of input green multiplied by the value of Blue - Green.
Blue - Blue:
Sets the amount of input blue added to the output blue. The default value
is 1.0, which leaves the blue channel unmodified. As this value increases, the output value
of blue increases by the amount of input blue multiplied by the value of Blue - Blue.
Blue - Alpha:
Sets the amount of input alpha added to the blue channel. The default
value is 0, which leaves the blue channel unmodified. As this value increases, the value
of blue increases by the amount of input alpha multiplied by the value of Blue - Alpha.
Alpha - Red:
Sets the amount of input red added to the output alpha. The default value
is 0, which leaves the alpha channel unmodified. As this value increases, the output value
of pixels with nontransparent alpha increases by the amount of input red multiplied by
the value of Alpha - Red.
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Alpha - Green:
Sets the amount of input green added to the output alpha. The default
value is 0, which leaves the alpha channel unmodified. As this value increases, the output
value of pixels with nontransparent alpha increases by the amount of input green
multiplied by the value of Alpha - Green.
Alpha - Blue:
Sets the amount of input blue added to the output alpha. The default value
is 0, which leaves the alpha channel unmodified. As this value increases, the output value
of pixels with nontransparent alpha increases by the amount of input blue multiplied by
the value of Alpha - Blue.
Alpha - Alpha:
Sets the amount of input alpha added to the output alpha channel. The
default value is 1.0, which leaves the alpha channel unmodified. As this value increases,
more alpha is added to the pixels in the alpha channel. Values above 1 have no effect,
unless the alpha is eroded by negative values in other alpha parameters.
Monochrome:
Sets the filter to monochrome mode. In monochrome mode, all three
color channels are affected by the Red controls.
Allow Mono > 1:
Allows monochromatic color channels to be set to values greater than
1. By default, this checkbox is selected. Color values are normally between 0 and 1, but
can go over 1 or below 0 because the project’s bit depth is set to 16 bits per channel. If
this checkbox is deselected, each Red color output control is linked. Moving any of them
causes the others to adjust so the total value remains at 1.0. The filter must be in
monochrome mode for this parameter to be active.
Include Alpha:
Sets whether to include the alpha channel in the mono calculation. The
filter must be in monochrome mode for this parameter to be active.
Mix:
Sets the percentage of the original image to be blended with the color-corrected
image.
HUD Controls
The HUD contains the following controls: Red - Red, Red - Green, Red - Blue, Red - Alpha,
Green - Red, Green - Green, Green - Blue, Green - Alpha, Blue - Red, Blue - Green, Blue -
Blue, Blue - Alpha, Alpha - Red, Alpha - Green, Alpha - Blue, Alpha - Alpha, Monochrome,
Allow Mono > 1, and Include Alpha.
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