set cut_paste_input [stack 0]
push $cut_paste_input
Dot {
 name Dot8
 xpos 2304
 ypos -126
}
Expression {
 temp_name0 L
 temp_expr0 w.0*r+w.1*g+w.2*b
 channel0 rgba
 expr0 L
 channel3 none
 name Luminance_Weights2
 xpos 2270
 ypos -82
 addUserKnob {20 Param}
 addUserKnob {35 weight_presets l "" +STARTLINE M {weights/ACEScg "knobs this \{w \{0.26806405 0.67246455 0.05947147\}\}" weights/Rec.2020 "knobs this \{w \{0.26270026 0.67799819 0.05930173\}\}" weights/P3D65 "knobs this \{w \{0.22897467 0.69173867 0.07928693\}\}" weights/Rec.709 "knobs this \{w \{0.21263911 0.71516877 0.07219233\}\}" "weights/Red WideGamut RGB" "knobs this \{w \{0.28669411 0.84297919 -0.12967324\}\}" "weights/Alexa Wide Gamut" "knobs this \{w \{0.2919538 0.82384098 -0.11579483\}\}" "weights/Sony S-Gamut3.Cine" "knobs this \{w \{0.21507585 0.88506854 -0.10014433\}\}" "weights/Filmlight E-Gamut" "knobs this \{w \{0.28013074 0.82020682 -0.10033739\}\}" "weights/DaVinci Wide Gamut" "knobs this \{w \{0.27411851 0.87363189 -0.14775042\}\}"}}
 addUserKnob {78 w l "" t "luminance weighting" -STARTLINE n 3}
 w {0.26806405 0.67246455 0.05947147}
}
set N9d37eb00 [stack 0]
Expression {
 channel0 rgba
 expr0 r/(r+1)
 name Reinhard
 xpos 2270
 ypos -33
}
push $N9d37eb00
Expression {
 channel0 rgba
 expr0 sy*(r/(r+sx))**p
 name HyperbolicTonescale
 xpos 2367
 ypos -33
 addUserKnob {20 User}
 addUserKnob {7 p R 1 2}
 p 1.2
 addUserKnob {7 sx R 0 4}
 sx 1
 addUserKnob {7 sy R 1 1.1}
 sy 1
}
Expression {
 channel0 rgba
 expr0 r*r/(r+f)
 name ParabolicCompression
 xpos 2367
 ypos 9
 addUserKnob {20 User}
 addUserKnob {7 f R 0 0.2}
 f 0.01
}