User guide

202
Control (UI) Default Value Function
channel a The channel from the out_mask input to use as a mask:
• r - use the red channel as the mask.
• g - use the green channel as the mask.
• b - use the blue channel as the mask.
• a - use the alpha channel as the mask.
By default, the levels adjustment is limited to the non-black
areas of the mask.
invert No When set to Yes, Katana inverts the use of the mask channel so
that the levels adjustment is limited to the non-white areas of
the mask.
fringe No When set to Yes, the mask is modified so that by default the
levels adjustment is limited to the fringe (semi-transparent
areas).
inputMin
red 0 Sets the minimum input level for the red channel.
green 0 Sets the minimum input level for the green channel.
blue 0 Sets the minimum input level for the blue channel.
alpha 0 Sets the minimum input level for the alpha channel.
inputMax
red 1 Sets the maximum input level for the red channel.
green 1 Sets the maximum input level for the green channel.
blue 1 Sets the maximum input level for the blue channel.
alpha 1 Sets the maximum input level for the alpha channel.
gamma
red 1 Sets the gamma level for the red channel.
green 1 Sets the gamma level for the green channel.
4 NODES I-K | IMAGELEVELS