Generates a full-frame identity ST map ((x+.5)/w, (y+.5)/h) and copies it into an stmap layer.
Channel STMap builds a normalized identity UV map with Expression (x+0.5)/width and (y+0.5)/height, shuffles it into an stmap layer, and copies that onto the input.
It does not convert an arbitrary pipeline ST pass. It adds a clean identity ST map layer for STMap, IDistort, or any node that wants UV in stmap.* channels.
set cut_paste_input [stack 0]
version 13.1 v2
push $cut_paste_input
Group {
name channelSTMap
tile_color 0x421010ff
selected true
xpos -2464
ypos 9732
}
Input {
inputs 0
name Input
selected true
xpos -402
ypos 250
}
Dot {
name Dot57
xpos -359
ypos 295
}
set N598d3200 [stack 0]
Expression {
expr0 "(x + .5) / width"
expr1 "(y + .5) / height"
name Expression10
label "\[knob expr3]"
xpos -236
ypos 337
}
add_layer {stmap stmap.red stmap.green stmap.blue stmap.alpha}
Shuffle {
out stmap
name ShuffleOld42
label "\[value in]"
xpos -236
ypos 363
}
push $N598d3200
Copy {
inputs 2
channels stmap
name Copy18
xpos -393
ypos 424
}
Output {
name Output1
xpos -393
ypos 524
}
end_group