Ryan O'Phelan wrote:
> I'm looking for a way to drive a hue rotation (as an example) with, say a
> depth map. The larger the value, the more the hue rotation.
You could do this with an expression node sampling the control image
but I reckon there are easier ways. For transforms you can use
that ITransform gizmo and for most colour corrections you can use
mixes in the appropriate colour space. For anything else it's possible
to use lots of ZSlice nodes to do arbitrary operations based on a
control image... but I've been there and it mostly results in
headaches, 100Mb scripts and huge caffeine consumption :-/
Hue shifting you can kinda do with HSVTool but the method below is
smoother when it wraps around the end of the rainbow.
--
Lewis Saunders
deeply misses for loops in shake macros
London
Radial {
area {512 389 1914 1464}
name Radial1
xpos -40
ypos -13
}
CheckerBoard2 {
inputs 0
color0 {0.7 0 0 1}
color1 {0 0.7 0 1}
color2 {0 0 0.7 1}
centerlinewidth 20
name CheckerBoard1
xpos -200
ypos -144
}
Colorspace {
colorspace_out HSV
name Colorspace1
xpos -200
ypos -13
}
Merge2 {
inputs 2
operation plus
Achannels {rgba.red -rgba.green -rgba.blue -rgba.alpha}
Bchannels {rgba.red -rgba.green -rgba.blue -rgba.alpha}
output {rgba.red -rgba.green -rgba.blue -rgba.alpha}
mix 0.362
name Plus
xpos -200
ypos 23
}
Colorspace {
colorspace_in HSV
name Colorspace2
xpos -200
ypos 59
}
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