global_tonemapping_operators.nk

#! /Applications/Nuke10.5v2/Nuke10.5v2.app/Contents/MacOS/libnuke-10.5.2.dylib -nx
version 10.5 v2
define_window_layout_xml {<?xml version="1.0" encoding="UTF-8"?>
<layout version="1.0">
    <window x="0" y="23" w="1280" h="777" screen="0">
        <splitter orientation="1">
            <split size="40"/>
            <dock id="" hideTitles="1" activePageId="Toolbar.1">
                <page id="Toolbar.1"/>
            </dock>
            <split size="617" stretch="1"/>
            <splitter orientation="2">
                <split size="441"/>
                <dock id="" activePageId="Viewer.1">
                    <page id="Viewer.1"/>
                </dock>
                <split size="310"/>
                <dock id="" activePageId="DAG.1">
                    <page id="DAG.1"/>
                    <page id="Curve Editor.1"/>
                    <page id="DopeSheet.1"/>
                </dock>
            </splitter>
            <split size="615"/>
            <dock id="" activePageId="Properties.1" focus="true">
                <page id="Properties.1"/>
            </dock>
        </splitter>
    </window>
</layout>
}
Root {
 inputs 0
 name /Users/kelsolaar/Documents/Development/colour-science/colour-nuke/colour_nuke/scripts/global_tonemapping_operators.nk
 format "256 256 0 0 256 256 1 square_256"
 proxy_type scale
 proxy_format "1024 778 0 0 1024 778 1 1K_Super_35(full-ap)"
 colorManagement Nuke
 workingSpaceLUT linear
 monitorLut sRGB
 int8Lut sRGB
 int16Lut sRGB
 logLut Cineon
 floatLut linear
}
Constant {
 inputs 0
 channels rgb
 format "512 512 0 0 512 512 1 square_512"
 name Constant
 xpos 400
 ypos -129
}
set N19ee54e0 [stack 0]
Invert {
 name Invert
 xpos 290
 ypos -109
}
Transform {
 translate {128 0}
 scale {0.5 1}
 center {256 256}
 name Transform
 xpos 290
 ypos -81
}
Dot {
 name Dot1
 xpos 324
 ypos -30
}
push $N19ee54e0
Ramp {
 p0 {0 0}
 p1 {0 512}
 name LDR_Ramp
 xpos 400
 ypos -57
}
Ramp {
 inputs 1+1
 p0 {0 0}
 p1 {0 512}
 color {6 3 1.5 4}
 name HDR_Ramp
 xpos 400
 ypos -33
}
set N22164320 [stack 0]
Group {
 name Filmic_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos 111
 addUserKnob {20 filmic_tonemapping_operator_Tab l "Filmic Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {7 A_Floating_Point_Slider l "Shoulder Strength"}
 A_Floating_Point_Slider 0.22
 addUserKnob {7 B_Floating_Point_Slider l "Linear Strength"}
 B_Floating_Point_Slider 0.3
 addUserKnob {7 C_Floating_Point_Slider l "Linear Angle"}
 C_Floating_Point_Slider 0.1
 addUserKnob {7 D_Floating_Point_Slider l "Toe Strength"}
 D_Floating_Point_Slider 0.2
 addUserKnob {7 E_Floating_Point_Slider l "Toe Numerator"}
 E_Floating_Point_Slider 0.01
 addUserKnob {7 F_Floating_Point_Slider l "Toe Denominator"}
 F_Floating_Point_Slider 0.3
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_parameters_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {7 exposure_bias_Floating_Point_Slider l "Exposure Bias"}
 exposure_bias_Floating_Point_Slider 2
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_parameters_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Filming Tonemapping Operator v0.1.0\n\ncolour-science.org - March 17, 2015\n\nThis Gizmo / Group implements the Filming Tonemapping Operator from Uncharted 2 by John Habble which is based on Haarm-Peter Duiker curve.\n\n\[1] Habble, J. (2010). Filmic Tonemapping Operators. Retrieved March 15, 2015, from http://filmicgames.com/archives/75\n\[2] Habble, J. (2010). Uncharted 2: HDR Lighting. Retrieved March 15, 2015, from http://www.slideshare.net/ozlael/hable-john-uncharted2-hdr-lighting"}
}
 Input {
  inputs 0
  name Input
  xpos 13
  ypos -125
 }
set N221731d0 [stack 0]
 Dot {
  name Dot1
  xpos 123
  ypos -122
 }
 Dot {
  name Dot2
  xpos 123
  ypos 22
 }
push $N221731d0
 Multiply {
  value {{parent.filmic_tonemapping_operator_Expression.exposure_bias_Floating_Point_Slider}}
  name exposure_bias_Multiply
  xpos 13
  ypos -101
 }
 Expression {
  temp_name0 toe_angle
  temp_expr0 E_Floating_Point_Slider/F_Floating_Point_Slider
  expr0 ((r*(A_Floating_Point_Slider*r+C_Floating_Point_Slider*B_Floating_Point_Slider)+D_Floating_Point_Slider*E_Floating_Point_Slider)/(r*(A_Floating_Point_Slider*r+B_Floating_Point_Slider)+D_Floating_Point_Slider*F_Floating_Point_Slider))-toe_angle
  expr1 ((g*(A_Floating_Point_Slider*g+C_Floating_Point_Slider*B_Floating_Point_Slider)+D_Floating_Point_Slider*E_Floating_Point_Slider)/(g*(A_Floating_Point_Slider*g+B_Floating_Point_Slider)+D_Floating_Point_Slider*F_Floating_Point_Slider))-toe_angle
  expr2 ((b*(A_Floating_Point_Slider*b+C_Floating_Point_Slider*B_Floating_Point_Slider)+D_Floating_Point_Slider*E_Floating_Point_Slider)/(b*(A_Floating_Point_Slider*b+B_Floating_Point_Slider)+D_Floating_Point_Slider*F_Floating_Point_Slider))-toe_angle
  expr3 a
  name filmic_tonemapping_operator_Expression
  xpos 13
  ypos -69
  addUserKnob {20 User}
  addUserKnob {7 exposure_bias_Floating_Point_Slider l "Exposure Bias"}
  exposure_bias_Floating_Point_Slider {{parent.exposure_bias_Floating_Point_Slider}}
  addUserKnob {7 A_Floating_Point_Slider l "Shoulder Strength"}
  A_Floating_Point_Slider {{parent.A_Floating_Point_Slider}}
  addUserKnob {7 B_Floating_Point_Slider l "Linear Strength"}
  B_Floating_Point_Slider {{parent.B_Floating_Point_Slider}}
  addUserKnob {7 C_Floating_Point_Slider l "Linear Angle"}
  C_Floating_Point_Slider {{parent.C_Floating_Point_Slider}}
  addUserKnob {7 D_Floating_Point_Slider l "Toe Strength"}
  D_Floating_Point_Slider {{parent.D_Floating_Point_Slider}}
  addUserKnob {7 E_Floating_Point_Slider l "Toe Numerator"}
  E_Floating_Point_Slider {{parent.E_Floating_Point_Slider}}
  addUserKnob {7 F_Floating_Point_Slider l "Toe Denominator"}
  F_Floating_Point_Slider {{parent.F_Floating_Point_Slider}}
  addUserKnob {7 linear_whitepoint_Floating_Point_Slider l "Linear Whitepoint"}
  linear_whitepoint_Floating_Point_Slider 11.2
  addUserKnob {7 linear_white_Floating_Point_Slider l "Linear White"}
  linear_white_Floating_Point_Slider {{((linear_whitepoint_Floating_Point_Slider*(A_Floating_Point_Slider*linear_whitepoint_Floating_Point_Slider+C_Floating_Point_Slider*B_Floating_Point_Slider)+D_Floating_Point_Slider*E_Floating_Point_Slider)/(linear_whitepoint_Floating_Point_Slider*(A_Floating_Point_Slider*linear_whitepoint_Floating_Point_Slider+B_Floating_Point_Slider)+D_Floating_Point_Slider*F_Floating_Point_Slider))-E_Floating_Point_Slider/F_Floating_Point_Slider}}
 }
 Multiply {
  value {{1/parent.filmic_tonemapping_operator_Expression.linear_white_Floating_Point_Slider}}
  name linear_white_Multiply
  xpos 13
  ypos -45
 }
set N270340 [stack 0]
 Clamp {
  name Clamp
  xpos -97
  ypos -13
 }
push $N270340
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos 13
  ypos -9
 }
 Dissolve {
  inputs 2
  which {{1-parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos 13
  ypos 15
 }
 Output {
  name Output
  xpos 13
  ypos 43
 }
end_group
Viewer {
 frame_range 1-100
 input_process false
 name Viewer1
 xpos 510
 ypos 135
}
push $N22164320
Group {
 name Simple_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos -57
 addUserKnob {20 simple_tonemapping_operator_tab l "Simple Tonemapping Operator"}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Simple Tonemapping Operator v0.1.0\n\ncolour-science.org - March 17, 2015\n\nThis Gizmo / Group implements a Simple Tonemapping Operator.\n\n\[1] Wikipedia. (n.d.). Tonemapping - Purpose and methods. Retrieved March 15, 2015, from http://en.wikipedia.org/wiki/Tone_mapping#Purpose_and_methods"}
}
 Input {
  inputs 0
  name Input
  xpos 55
  ypos -54
 }
set N19ee45a0 [stack 0]
 Expression {
  expr0 r/(r+1)
  expr1 g/(g+1)
  expr2 b/(b+1)
  name simple_tonemapping_operator_Expression
  xpos 55
  ypos -30
 }
push $N19ee45a0
 Dot {
  name Dot1
  xpos 165
  ypos -51
 }
 Dot {
  name Dot2
  xpos 165
  ypos 1
 }
 Dissolve {
  inputs 2
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  selected true
  xpos 55
  ypos -6
 }
 Output {
  name Output
  xpos 55
  ypos 26
 }
end_group
push $N22164320
Group {
 name Normalisation_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos -33
 addUserKnob {20 normalisation_tonemapping_operator_tab l "Normalisation Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {22 compute_limits_Python_Script_Button l "Compute Domain" t "Computes the domain / range of internal nodes. \n\nThe domain has to be manually recomputed each time that up-stream graph is changed." T nuke.toNode('domain_CurveTool').knob('go').execute() +STARTLINE}
 addUserKnob {22 reset_domain_Python_Script_Button l "Reset Domain" t "Reset the domain / range of internal nodes. " -STARTLINE T "node =  nuke.toNode('domain_CurveTool')\n\nknob = node.knob('maxlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('maxlumapixvalue')\nknob.clearAnimated()\nknob.setValue(1)\n\nknob = node.knob('minlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('minlumapixvalue')\nknob.clearAnimated()\nknob.setValue(0)"}
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Normalisation Tonemapping Operator v0.1.0\n\ncolour-science.org - March 17, 2015\n\nThis Gizmo / Group implements a Normalisation Tonemapping Operator.\n\n\[1] Banterle, F., Artusi, A., Debattista, K., & Chalmers, A. (2011). 3.2.1 Simple Mapping Methods. In Advanced High Dynamic Range Imaging (pp. 38–41). A K Peters/CRC Press. ISBN:978-1568817194\n"}
}
 Input {
  inputs 0
  name Input
  xpos -97
  ypos -163
 }
set N27737cd0 [stack 0]
 Multiply {
  value {{"1 / max(domain_CurveTool.maxlumapixvalue.r, domain_CurveTool.maxlumapixvalue.g, domain_CurveTool.maxlumapixvalue.b)"}}
  name normalisation_Multiply
  xpos -97
  ypos -133
 }
push $N27737cd0
 Dot {
  name Dot2
  xpos 71
  ypos -160
 }
 Dot {
  name Dot3
  xpos 71
  ypos -94
 }
 Dissolve {
  inputs 2
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos -97
  ypos -101
 }
 Output {
  name Output
  xpos -97
  ypos -69
 }
push $N27737cd0
 Dot {
  name Dot1
  xpos -207
  ypos -160
 }
 CurveTool {
  operation "Max Luma Pixel"
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  maxlumapixvalue 1
  name domain_CurveTool
  selected true
  xpos -241
  ypos -129
 }
end_group
push $N22164320
Group {
 name Gamma_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos -9
 addUserKnob {20 gamma_tonemapping_operator_tab l "Gamma Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {7 exposure_Floating_Point_Slider l Exposure R -5 5}
 addUserKnob {7 gamma_Floating_Point_Slider l Gamma R 0.2 5}
 gamma_Floating_Point_Slider 1
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Gamma Tonemapping Operator v0.1.0\n\ncolour-science.org - March 17, 2015\n\nThis Gizmo / Group implements a Gamma Tonemapping Operator.\n\n\[1] Banterle, F., Artusi, A., Debattista, K., & Chalmers, A. (2011). 3.2.1 Simple Mapping Methods. In Advanced High Dynamic Range Imaging (pp. 38–41). A K Peters/CRC Press. ISBN:978-1568817194"}
}
 Input {
  inputs 0
  name Input
  xpos 55
  ypos -57
 }
 Expression {
  temp_name0 exposure
  temp_expr0 "2 ** exposure_Floating_Point_Slider"
  expr0 "(exposure * r) ** (1 / gamma_Floating_Point_Slider)"
  expr1 "(exposure * g) ** (1 / gamma_Floating_Point_Slider)"
  expr2 "(exposure * b) ** (1 / gamma_Floating_Point_Slider)"
  name gamma_tonemapping_operator_Expression
  selected true
  xpos 55
  ypos -30
  addUserKnob {20 User}
  addUserKnob {7 exposure_Floating_Point_Slider l Exposure}
  exposure_Floating_Point_Slider {{parent.exposure_Floating_Point_Slider}}
  addUserKnob {7 gamma_Floating_Point_Slider l Gamma}
  gamma_Floating_Point_Slider {{parent.gamma_Floating_Point_Slider}}
 }
set N22197f20 [stack 0]
 Clamp {
  name Clamp
  xpos -55
  ypos -10
 }
push $N22197f20
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos 55
  ypos -6
 }
push $N22197f20
 Dot {
  name Dot1
  xpos 165
  ypos -51
 }
 Dot {
  name Dot2
  xpos 165
  ypos 25
 }
 Dissolve {
  inputs 2
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos 55
  ypos 18
 }
 Output {
  name Output
  xpos 55
  ypos 50
 }
end_group
push $N22164320
Group {
 name Logarithmic_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos 15
 addUserKnob {20 logarithmic_tonemapping_operator_tab l "Logarithmic Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {22 compute_limits_Python_Script_Button l "Compute Domain" t "Computes the domain / range of internal nodes. \n\nThe domain has to be manually recomputed each time that up-stream graph is changed." T nuke.toNode('domain_CurveTool').knob('go').execute() +STARTLINE}
 addUserKnob {22 reset_domain_Python_Script_Button l "Reset Domain" t "Reset the domain / range of internal nodes. " -STARTLINE T "node =  nuke.toNode('domain_CurveTool')\n\nknob = node.knob('maxlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('maxlumapixvalue')\nknob.clearAnimated()\nknob.setValue(1)\n\nknob = node.knob('minlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('minlumapixvalue')\nknob.clearAnimated()\nknob.setValue(0)"}
 addUserKnob {7 p_Floating_Point_Slider l p R 0.2 5}
 p_Floating_Point_Slider 1
 addUserKnob {7 q_Floating_Point_Slider l q R 1 3}
 q_Floating_Point_Slider 1
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
 colourspace_Pulldown_Choice sRGB
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Logarithmic Tonemapping Operator v0.1.3\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group implements a Logarithmic Tonemapping Operator.\n\n\[1] Schlick, C. (1994). Quantization Techniques for Visualization of High Dynamic Range Pictures. Proceedings of the Fifth Eurographics Workshop on Rendering, (Section 5), 7–18."}
}
 Input {
  inputs 0
  name Input
  xpos -150
  ypos -177
 }
set N28ff60 [stack 0]
 Dot {
  name Dot7
  xpos -116
  ypos -102
 }
set N221ee7c0 [stack 0]
push 0
push $N221ee7c0
push $N28ff60
 Dot {
  name Dot1
  xpos -116
  ypos -198
 }
 Group {
  name RGB_Luminance
  selected true
  xpos -370
  ypos -201
  addUserKnob {20 RGB_luminance_Tab l "RGB Luminance"}
  addUserKnob {20 colourspace_parameters_Begin_Group l "Colourspace Parameters" n 1}
  addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  colourspace_Pulldown_Choice {{parent.colourspace_Pulldown_Choice x1 0}}
  addUserKnob {20 endGroup n -1}
  addUserKnob {20 about_Tab l About}
  addUserKnob {26 description_Text l "" +STARTLINE T "RGB Luminance v0.1.4\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group computes the \"RGB Luminance\" of given colourspace."}
 }
  Input {
   inputs 0
   name Input
   xpos -4880
   ypos -273
  }
set N221f0ef0 [stack 0]
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name sRGB_luminance_Expression
   xpos -5006
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.0 * r + 1.0 * g + 0.0 * b"
   expr1 "0.0 * r + 1.0 * g + 0.0 * b"
   expr2 "0.0 * r + 1.0 * g + 0.0 * b"
   name Xtreme_RGB_luminance_Expression
   xpos -5136
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr1 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr2 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   name V-Gamut_luminance_Expression
   xpos -5286
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr1 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr2 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   name SMPTE-C_RGB_luminance_Expression
   xpos -5436
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr1 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr2 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   name S-Gamut3.Cine_luminance_Expression
   xpos -5586
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut3_luminance_Expression
   xpos -5736
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut_luminance_Expression
   xpos -5886
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr1 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr2 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   name Russell_RGB_luminance_Expression
   xpos -6036
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name Rec._709_luminance_Expression
   xpos -6186
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr1 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr2 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   name Rec._2020_luminance_Expression
   xpos -6336
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ROMM_RGB_luminance_Expression
   xpos -6486
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name RIMM_RGB_luminance_Expression
   xpos -6636
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr1 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr2 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   name REDcolor4_luminance_Expression
   xpos -6786
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr1 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr2 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   name REDcolor3_luminance_Expression
   xpos -6936
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr1 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr2 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   name REDcolor2_luminance_Expression
   xpos -7086
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr1 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr2 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   name REDcolor_luminance_Expression
   xpos -7236
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ProPhoto_RGB_luminance_Expression
   xpos -7386
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr1 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr2 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   name Pal/Secam_RGB_luminance_Expression
   xpos -7536
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr1 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr2 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   name NTSC_RGB_luminance_Expression
   xpos -7686
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr1 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr2 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   name Max_RGB_luminance_Expression
   xpos -7836
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr1 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr2 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   name Ekta_Space_PS_5_luminance_Expression
   xpos -7986
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ERIMM_RGB_luminance_Expression
   xpos -8136
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr1 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr2 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   name ECI_RGB_v2_luminance_Expression
   xpos -8286
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr1 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr2 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   name Don_RGB_4_luminance_Expression
   xpos -8436
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr1 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr2 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   name DRAGONcolor2_luminance_Expression
   xpos -8586
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr1 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr2 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   name DRAGONcolor_luminance_Expression
   xpos -8736
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr1 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr2 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   name DCI-P3+_luminance_Expression
   xpos -8886
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr1 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr2 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   name DCI-P3_luminance_Expression
   xpos -9036
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr1 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr2 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   name ColorMatch_RGB_luminance_Expression
   xpos -9186
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr1 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr2 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   name Cinema_Gamut_luminance_Expression
   xpos -9336
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr1 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr2 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   name CIE_RGB_luminance_Expression
   xpos -9486
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr1 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr2 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   name Beta_RGB_luminance_Expression
   xpos -9636
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr1 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr2 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   name Best_RGB_luminance_Expression
   xpos -9786
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr1 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr2 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   name Apple_RGB_luminance_Expression
   xpos -9936
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr1 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr2 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   name Adobe_Wide_Gamut_RGB_luminance_Expression
   xpos -10086
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr1 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr2 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   name Adobe_RGB_(1998)_luminance_Expression
   xpos -10236
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr1 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr2 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   name ALEXA_Wide_Gamut_RGB_luminance_Expression
   xpos -10386
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACESproxy_luminance_Expression
   xpos -10536
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScg_luminance_Expression
   xpos -10686
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScc_luminance_Expression
   xpos -10836
   ypos -251
  }
push $N221f0ef0
  Expression {
   expr0 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr1 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr2 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   name ACES2065-1_luminance_Expression
   xpos -10986
   ypos -251
  }
  Switch {
   inputs 41
   which {{parent.colourspace_Pulldown_Choice}}
   name colourspace_Switch
   selected true
   xpos -4880
   ypos -225
   addUserKnob {20 User}
   addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  }
  Output {
   name Output
   xpos -4880
   ypos -201
  }
 end_group
set N2d793800 [stack 0]
 Dot {
  name Dot4
  xpos -446
  ypos -198
 }
 Dot {
  name Dot5
  xpos -446
  ypos -126
 }
set N24532b80 [stack 0]
 Expression {
  channel3 rgb
  expr3 "(log(1 + p_Floating_Point_Slider * r) / log(1 + p_Floating_Point_Slider * L_max_Floating_Point_Slider)) ** (1 / q_Floating_Point_Slider)"
  name logarithmic_tonemapping_operator_Expression
  xpos -260
  ypos -129
  addUserKnob {20 User}
  addUserKnob {7 p_Floating_Point_Slider l p}
  p_Floating_Point_Slider {{parent.p_Floating_Point_Slider}}
  addUserKnob {7 q_Floating_Point_Slider l q}
  q_Floating_Point_Slider {{parent.q_Floating_Point_Slider}}
  addUserKnob {7 L_max_Floating_Point_Slider l L_max}
  L_max_Floating_Point_Slider {{parent.domain_CurveTool.maxlumapixvalue}}
 }
 Merge2 {
  inputs 2
  operation multiply
  name multiply_Merge
  xpos -260
  ypos -105
 }
push $N24532b80
 Dot {
  name Dot8
  xpos -446
  ypos -78
 }
 Merge2 {
  inputs 2
  operation divide
  name divide_Merge
  xpos -260
  ypos -81
 }
set N27c115d0 [stack 0]
 Clamp {
  name Clamp
  xpos -370
  ypos -61
 }
push $N27c115d0
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos -260
  ypos -52
 }
push $N28ff60
 Dot {
  name Dot2
  xpos -6
  ypos -174
 }
 Dot {
  name Dot3
  xpos -6
  ypos -49
 }
 Dissolve {
  inputs 3+1
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos -150
  ypos -56
 }
 Output {
  name Output
  xpos -150
  ypos -24
 }
push $N2d793800
 Dot {
  name Dot6
  xpos -336
  ypos -174
 }
 CurveTool {
  operation "Max Luma Pixel"
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  maxlumapixvalue 1
  name domain_CurveTool
  xpos -260
  ypos -177
 }
end_group
push $N22164320
Group {
 name Exponential_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos 39
 addUserKnob {20 exponential_tonemapping_operator_tab l "Exponential Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {22 compute_limits_Python_Script_Button l "Compute Domain" t "Computes the domain / range of internal nodes. \n\nThe domain has to be manually recomputed each time that up-stream graph is changed." T nuke.toNode('domain_CurveTool').knob('go').execute() +STARTLINE}
 addUserKnob {22 reset_domain_Python_Script_Button l "Reset Domain" t "Reset the domain / range of internal nodes. " -STARTLINE T "node =  nuke.toNode('domain_CurveTool')\n\nknob = node.knob('maxlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('maxlumapixvalue')\nknob.clearAnimated()\nknob.setValue(1)\n\nknob = node.knob('minlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('minlumapixvalue')\nknob.clearAnimated()\nknob.setValue(0)"}
 addUserKnob {7 p_Floating_Point_Slider l p}
 p_Floating_Point_Slider 1
 addUserKnob {7 q_Floating_Point_Slider l q R 1 3}
 q_Floating_Point_Slider 1
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
 colourspace_Pulldown_Choice sRGB
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Exponential Tonemapping Operator v0.1.3\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group implements an Exponential Tonemapping Operator.\n\n\[1] Schlick, C. (1994). Quantization Techniques for Visualization of High Dynamic Range Pictures. Proceedings of the Fifth Eurographics Workshop on Rendering, (Section 5), 7–18."}
}
 Input {
  inputs 0
  name Input
  xpos -150
  ypos -177
 }
set N24c24670 [stack 0]
 Dot {
  name Dot7
  xpos -116
  ypos -102
 }
set N24c269d0 [stack 0]
push 0
push $N24c269d0
push $N24c24670
 Dot {
  name Dot1
  xpos -116
  ypos -198
 }
 Group {
  name RGB_Luminance1
  selected true
  xpos -370
  ypos -201
  addUserKnob {20 RGB_luminance_Tab l "RGB Luminance"}
  addUserKnob {20 colourspace_parameters_Begin_Group l "Colourspace Parameters" n 1}
  addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  colourspace_Pulldown_Choice {{parent.colourspace_Pulldown_Choice x1 0}}
  addUserKnob {20 endGroup n -1}
  addUserKnob {20 about_Tab l About}
  addUserKnob {26 description_Text l "" +STARTLINE T "RGB Luminance v0.1.4\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group computes the \"RGB Luminance\" of given colourspace."}
 }
  Input {
   inputs 0
   name Input
   xpos -4880
   ypos -273
  }
set N24c2fbe0 [stack 0]
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name sRGB_luminance_Expression
   xpos -5006
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.0 * r + 1.0 * g + 0.0 * b"
   expr1 "0.0 * r + 1.0 * g + 0.0 * b"
   expr2 "0.0 * r + 1.0 * g + 0.0 * b"
   name Xtreme_RGB_luminance_Expression
   xpos -5136
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr1 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr2 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   name V-Gamut_luminance_Expression
   xpos -5286
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr1 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr2 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   name SMPTE-C_RGB_luminance_Expression
   xpos -5436
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr1 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr2 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   name S-Gamut3.Cine_luminance_Expression
   xpos -5586
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut3_luminance_Expression
   xpos -5736
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut_luminance_Expression
   xpos -5886
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr1 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr2 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   name Russell_RGB_luminance_Expression
   xpos -6036
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name Rec._709_luminance_Expression
   xpos -6186
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr1 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr2 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   name Rec._2020_luminance_Expression
   xpos -6336
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ROMM_RGB_luminance_Expression
   xpos -6486
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name RIMM_RGB_luminance_Expression
   xpos -6636
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr1 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr2 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   name REDcolor4_luminance_Expression
   xpos -6786
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr1 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr2 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   name REDcolor3_luminance_Expression
   xpos -6936
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr1 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr2 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   name REDcolor2_luminance_Expression
   xpos -7086
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr1 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr2 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   name REDcolor_luminance_Expression
   xpos -7236
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ProPhoto_RGB_luminance_Expression
   xpos -7386
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr1 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr2 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   name Pal/Secam_RGB_luminance_Expression
   xpos -7536
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr1 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr2 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   name NTSC_RGB_luminance_Expression
   xpos -7686
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr1 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr2 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   name Max_RGB_luminance_Expression
   xpos -7836
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr1 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr2 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   name Ekta_Space_PS_5_luminance_Expression
   xpos -7986
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ERIMM_RGB_luminance_Expression
   xpos -8136
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr1 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr2 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   name ECI_RGB_v2_luminance_Expression
   xpos -8286
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr1 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr2 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   name Don_RGB_4_luminance_Expression
   xpos -8436
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr1 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr2 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   name DRAGONcolor2_luminance_Expression
   xpos -8586
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr1 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr2 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   name DRAGONcolor_luminance_Expression
   xpos -8736
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr1 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr2 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   name DCI-P3+_luminance_Expression
   xpos -8886
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr1 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr2 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   name DCI-P3_luminance_Expression
   xpos -9036
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr1 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr2 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   name ColorMatch_RGB_luminance_Expression
   xpos -9186
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr1 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr2 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   name Cinema_Gamut_luminance_Expression
   xpos -9336
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr1 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr2 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   name CIE_RGB_luminance_Expression
   xpos -9486
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr1 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr2 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   name Beta_RGB_luminance_Expression
   xpos -9636
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr1 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr2 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   name Best_RGB_luminance_Expression
   xpos -9786
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr1 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr2 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   name Apple_RGB_luminance_Expression
   xpos -9936
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr1 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr2 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   name Adobe_Wide_Gamut_RGB_luminance_Expression
   xpos -10086
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr1 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr2 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   name Adobe_RGB_(1998)_luminance_Expression
   xpos -10236
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr1 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr2 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   name ALEXA_Wide_Gamut_RGB_luminance_Expression
   xpos -10386
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACESproxy_luminance_Expression
   xpos -10536
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScg_luminance_Expression
   xpos -10686
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScc_luminance_Expression
   xpos -10836
   ypos -251
  }
push $N24c2fbe0
  Expression {
   expr0 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr1 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr2 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   name ACES2065-1_luminance_Expression
   xpos -10986
   ypos -251
  }
  Switch {
   inputs 41
   which {{parent.colourspace_Pulldown_Choice}}
   name colourspace_Switch
   selected true
   xpos -4880
   ypos -225
   addUserKnob {20 User}
   addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  }
  Output {
   name Output
   xpos -4880
   ypos -201
  }
 end_group
set Nb8a600 [stack 0]
 Dot {
  name Dot4
  xpos -446
  ypos -198
 }
 Dot {
  name Dot5
  xpos -446
  ypos -126
 }
set N277b74b0 [stack 0]
 Expression {
  channel3 rgb
  expr3 "(r / L_max_Floating_Point_Slider) ** (p_Floating_Point_Slider / q_Floating_Point_Slider)"
  name exponential_tonemapping_operator_Expression
  xpos -260
  ypos -129
  addUserKnob {20 User}
  addUserKnob {7 p_Floating_Point_Slider l p}
  p_Floating_Point_Slider {{parent.p_Floating_Point_Slider}}
  addUserKnob {7 q_Floating_Point_Slider l q}
  q_Floating_Point_Slider {{parent.q_Floating_Point_Slider}}
  addUserKnob {7 L_max_Floating_Point_Slider l L_max}
  L_max_Floating_Point_Slider {{parent.domain_CurveTool.maxlumapixvalue}}
 }
 Merge2 {
  inputs 2
  operation multiply
  name multiply_Merge
  xpos -260
  ypos -105
 }
push $N277b74b0
 Dot {
  name Dot8
  xpos -446
  ypos -78
 }
 Merge2 {
  inputs 2
  operation divide
  name divide_Merge
  xpos -260
  ypos -81
 }
set N277c9290 [stack 0]
 Clamp {
  name Clamp
  xpos -370
  ypos -61
 }
push $N277c9290
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos -260
  ypos -52
 }
push $N24c24670
 Dot {
  name Dot2
  xpos -6
  ypos -174
 }
 Dot {
  name Dot3
  xpos -6
  ypos -49
 }
 Dissolve {
  inputs 3+1
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos -150
  ypos -56
 }
 Output {
  name Output
  xpos -150
  ypos -24
 }
push $Nb8a600
 Dot {
  name Dot6
  xpos -336
  ypos -174
 }
 CurveTool {
  operation "Max Luma Pixel"
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  maxlumapixvalue 1
  name domain_CurveTool
  xpos -260
  ypos -177
 }
end_group
push $N22164320
Group {
 name Schlick94_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos 63
 addUserKnob {20 Schlick94_tonemapping_operator_tab l "Schlick (1994) Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {22 compute_limits_Python_Script_Button l "Compute Domain" t "Computes the domain / range of internal nodes. \n\nThe domain has to be manually recomputed each time that up-stream graph is changed." T nuke.toNode('domain_CurveTool').knob('go').execute() +STARTLINE}
 addUserKnob {22 reset_domain_Python_Script_Button l "Reset Domain" t "Reset the domain / range of internal nodes. " -STARTLINE T "node =  nuke.toNode('domain_CurveTool')\n\nknob = node.knob('maxlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('maxlumapixvalue')\nknob.clearAnimated()\nknob.setValue(1)\n\nknob = node.knob('minlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('minlumapixvalue')\nknob.clearAnimated()\nknob.setValue(0)"}
 addUserKnob {7 p_Floating_Point_Slider l p R 1 5}
 p_Floating_Point_Slider 1
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
 colourspace_Pulldown_Choice sRGB
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Schlick (1994) Tonemapping Operator v0.1.3\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group implements Schlick (1994) Tonemapping Operator.\n\n\[1] Schlick, C. (1994). Quantization Techniques for Visualization of High Dynamic Range Pictures. Proceedings of the Fifth Eurographics Workshop on Rendering, (Section 5), 7–18.\n\[2] Banterle, F., Artusi, A., Debattista, K., & Chalmers, A. (2011). 3.2.3 Quantization Techniques. Advanced High Dynamic Range Imaging. A K Peters/CRC Press. ISBN:978-1568817194"}
}
 Input {
  inputs 0
  name Input
  xpos -150
  ypos -177
 }
set N1a9a8040 [stack 0]
 Dot {
  name Dot7
  xpos -116
  ypos -102
 }
set N1a9aa1a0 [stack 0]
push 0
push $N1a9aa1a0
push $N1a9a8040
 Dot {
  name Dot1
  xpos -116
  ypos -198
 }
 Group {
  name RGB_Luminance1
  xpos -370
  ypos -201
  addUserKnob {20 RGB_luminance_Tab l "RGB Luminance"}
  addUserKnob {20 colourspace_parameters_Begin_Group l "Colourspace Parameters" n 1}
  addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  colourspace_Pulldown_Choice {{parent.colourspace_Pulldown_Choice x1 0}}
  addUserKnob {20 endGroup n -1}
  addUserKnob {20 about_Tab l About}
  addUserKnob {26 description_Text l "" +STARTLINE T "RGB Luminance v0.1.4\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group computes the \"RGB Luminance\" of given colourspace."}
 }
  Input {
   inputs 0
   name Input
   xpos -4880
   ypos -273
  }
set N277ca370 [stack 0]
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name sRGB_luminance_Expression
   xpos -5006
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.0 * r + 1.0 * g + 0.0 * b"
   expr1 "0.0 * r + 1.0 * g + 0.0 * b"
   expr2 "0.0 * r + 1.0 * g + 0.0 * b"
   name Xtreme_RGB_luminance_Expression
   xpos -5136
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr1 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr2 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   name V-Gamut_luminance_Expression
   xpos -5286
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr1 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr2 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   name SMPTE-C_RGB_luminance_Expression
   xpos -5436
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr1 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr2 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   name S-Gamut3.Cine_luminance_Expression
   xpos -5586
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut3_luminance_Expression
   xpos -5736
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut_luminance_Expression
   xpos -5886
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr1 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr2 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   name Russell_RGB_luminance_Expression
   xpos -6036
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name Rec._709_luminance_Expression
   xpos -6186
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr1 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr2 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   name Rec._2020_luminance_Expression
   xpos -6336
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ROMM_RGB_luminance_Expression
   xpos -6486
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name RIMM_RGB_luminance_Expression
   xpos -6636
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr1 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr2 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   name REDcolor4_luminance_Expression
   xpos -6786
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr1 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr2 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   name REDcolor3_luminance_Expression
   xpos -6936
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr1 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr2 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   name REDcolor2_luminance_Expression
   xpos -7086
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr1 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr2 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   name REDcolor_luminance_Expression
   xpos -7236
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ProPhoto_RGB_luminance_Expression
   xpos -7386
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr1 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr2 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   name Pal/Secam_RGB_luminance_Expression
   xpos -7536
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr1 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr2 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   name NTSC_RGB_luminance_Expression
   xpos -7686
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr1 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr2 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   name Max_RGB_luminance_Expression
   xpos -7836
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr1 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr2 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   name Ekta_Space_PS_5_luminance_Expression
   xpos -7986
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ERIMM_RGB_luminance_Expression
   xpos -8136
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr1 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr2 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   name ECI_RGB_v2_luminance_Expression
   xpos -8286
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr1 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr2 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   name Don_RGB_4_luminance_Expression
   xpos -8436
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr1 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr2 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   name DRAGONcolor2_luminance_Expression
   xpos -8586
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr1 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr2 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   name DRAGONcolor_luminance_Expression
   xpos -8736
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr1 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr2 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   name DCI-P3+_luminance_Expression
   xpos -8886
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr1 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr2 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   name DCI-P3_luminance_Expression
   xpos -9036
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr1 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr2 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   name ColorMatch_RGB_luminance_Expression
   xpos -9186
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr1 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr2 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   name Cinema_Gamut_luminance_Expression
   xpos -9336
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr1 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr2 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   name CIE_RGB_luminance_Expression
   xpos -9486
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr1 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr2 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   name Beta_RGB_luminance_Expression
   xpos -9636
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr1 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr2 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   name Best_RGB_luminance_Expression
   xpos -9786
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr1 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr2 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   name Apple_RGB_luminance_Expression
   xpos -9936
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr1 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr2 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   name Adobe_Wide_Gamut_RGB_luminance_Expression
   xpos -10086
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr1 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr2 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   name Adobe_RGB_(1998)_luminance_Expression
   xpos -10236
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr1 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr2 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   name ALEXA_Wide_Gamut_RGB_luminance_Expression
   xpos -10386
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACESproxy_luminance_Expression
   xpos -10536
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScg_luminance_Expression
   xpos -10686
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScc_luminance_Expression
   xpos -10836
   ypos -251
  }
push $N277ca370
  Expression {
   expr0 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr1 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr2 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   name ACES2065-1_luminance_Expression
   xpos -10986
   ypos -251
  }
  Switch {
   inputs 41
   which {{parent.colourspace_Pulldown_Choice}}
   name colourspace_Switch
   selected true
   xpos -4880
   ypos -225
   addUserKnob {20 User}
   addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  }
  Output {
   name Output
   xpos -4880
   ypos -201
  }
 end_group
set N2e015200 [stack 0]
 Dot {
  name Dot4
  xpos -446
  ypos -198
 }
 Dot {
  name Dot5
  xpos -446
  ypos -126
 }
set N243f72a0 [stack 0]
 Expression {
  channel3 rgb
  expr3 "(p_Floating_Point_Slider * r) / (p_Floating_Point_Slider * r - r + L_max_Floating_Point_Slider)"
  name Schlick94_tonemapping_operator_Expression
  xpos -260
  ypos -129
  addUserKnob {20 User}
  addUserKnob {7 p_Floating_Point_Slider l p}
  p_Floating_Point_Slider {{parent.p_Floating_Point_Slider}}
  addUserKnob {7 L_max_Floating_Point_Slider l L_max}
  L_max_Floating_Point_Slider {{parent.domain_CurveTool.maxlumapixvalue}}
 }
 Merge2 {
  inputs 2
  operation multiply
  name multiply_Merge
  xpos -260
  ypos -105
 }
push $N243f72a0
 Dot {
  name Dot8
  xpos -446
  ypos -78
 }
 Merge2 {
  inputs 2
  operation divide
  name divide_Merge
  xpos -260
  ypos -81
 }
set N24cec130 [stack 0]
 Clamp {
  name Clamp
  xpos -370
  ypos -61
 }
push $N24cec130
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos -260
  ypos -52
 }
push $N1a9a8040
 Dot {
  name Dot2
  xpos -6
  ypos -174
 }
 Dot {
  name Dot3
  xpos -6
  ypos -49
 }
 Dissolve {
  inputs 3+1
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos -150
  ypos -56
 }
 Output {
  name Output
  xpos -150
  ypos -24
 }
push $N2e015200
 Dot {
  name Dot6
  xpos -336
  ypos -174
 }
 CurveTool {
  operation "Max Luma Pixel"
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  maxlumapixvalue 1
  name domain_CurveTool
  xpos -260
  ypos -177
 }
end_group
push $N22164320
Group {
 name Reinhard04_Tonemapping_Operator
 tile_color 0xffbf00ff
 xpos 510
 ypos 87
 addUserKnob {20 Reinhard04_tonemapping_operator_tab l "Reinhard (2004) Tonemapping Operator"}
 addUserKnob {20 tone_parameters_Group l "Tone Parameters" n 1}
 addUserKnob {22 compute_limits_Python_Script_Button l "Compute Domain" t "Computes the domain / range of internal nodes. \n\nThe domain has to be manually recomputed each time that up-stream graph is changed." T "nuke.toNode('domain_CurveTool').knob('go').execute()\nnuke.toNode('average_CurveTool').knob('go').execute()\nnuke.toNode('log_average_CurveTool').knob('go').execute()" +STARTLINE}
 addUserKnob {22 reset_domain_Python_Script_Button l "Reset Domain" t "Reset the domain / range of internal nodes. " -STARTLINE T "node =  nuke.toNode('domain_CurveTool')\n\nknob = node.knob('maxlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('maxlumapixvalue')\nknob.clearAnimated()\nknob.setValue(1)\n\nknob = node.knob('minlumapixdata')\nknob.clearAnimated()\nknob.setValue((0, 0))\n\nknob = node.knob('minlumapixvalue')\nknob.clearAnimated()\nknob.setValue(0)\n\nnode =  nuke.toNode('average_CurveTool')\n\nknob = node.knob('intensitydata')\nknob.clearAnimated()\nknob.setValue((0, 0, 0, 0))\n\nnode =  nuke.toNode('log_average_CurveTool')\n\nknob = node.knob('intensitydata')\nknob.clearAnimated()\nknob.setValue((0, 0, 0, 0))"}
 addUserKnob {7 f_Floating_Point_Slider l f t "Intensity, operating range: \[-8.0, 8.0]." R -8 8}
 addUserKnob {7 m_Floating_Point_Slider l m t "Contrast, operating range: \[0.3, 1.0]." R 0.3 1}
 m_Floating_Point_Slider 0.3
 addUserKnob {7 a_Floating_Point_Slider l a t "Light adaptation, operating range: \[0.0 1.0]."}
 addUserKnob {7 c_Floating_Point_Slider l c t "Chromatic adaptation, operating range: \[0.3 1.0]."}
 addUserKnob {20 tone_parameters_endGroup l endGroup n -1}
 addUserKnob {20 miscellaneous_Group l "Miscellaneous Parameters" n 1}
 addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
 colourspace_Pulldown_Choice sRGB
 addUserKnob {7 mix_Floating_Point_Slider l Mix t "Dissolve between the original image at 0 and the full effect at 1."}
 mix_Floating_Point_Slider 1
 addUserKnob {6 clamp_output_Check_Box l "Clamp Output" t "Output values are clamped within \[0, 1] domain." +STARTLINE}
 clamp_output_Check_Box true
 addUserKnob {20 miscellaneous_endGroup l endGroup n -1}
 addUserKnob {20 about_Tab l About}
 addUserKnob {26 description_Text l "" +STARTLINE T "Reinhard (2004) Tonemapping Operator v0.1.4\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group implements Reinhard (2004) Tonemapping Operator.\n\n\[1] Reinhard, E., & Devlin, K. (2005). Dynamic range reduction inspired by photoreceptor physiology. IEEE Transactions on Visualization and Computer Graphics, 11(1), 13–24. doi:10.1109/TVCG.2005.9"}
}
 Input {
  inputs 0
  name Input
  xpos -150
  ypos -177
 }
set N243bf910 [stack 0]
 Dot {
  name Dot8
  xpos -116
  ypos -116
 }
set N243c18d0 [stack 0]
 Dot {
  name Dot10
  xpos -116
  ypos -6
 }
set N243b6a70 [stack 0]
 Dot {
  name Dot7
  xpos -116
  ypos 18
 }
set N243b9010 [stack 0]
push 0
push $N243b9010
push $N243b6a70
push $N243c18d0
 Expression {
  expr0 "c_Floating_Point_Slider * r + (1 - c_Floating_Point_Slider)"
  expr1 "c_Floating_Point_Slider * g + (1 - c_Floating_Point_Slider)"
  expr2 "c_Floating_Point_Slider * b + (1 - c_Floating_Point_Slider)"
  name I_l_Expression
  xpos -260
  ypos -119
  addUserKnob {20 User}
  addUserKnob {7 c_Floating_Point_Slider l c}
  c_Floating_Point_Slider {{parent.c_Floating_Point_Slider}}
 }
push $N243bf910
 Dot {
  name Dot1
  xpos -116
  ypos -198
 }
set N243a5170 [stack 0]
 Group {
  name RGB_Luminance1
  xpos -370
  ypos -201
  addUserKnob {20 RGB_luminance_Tab l "RGB Luminance"}
  addUserKnob {20 colourspace_parameters_Begin_Group l "Colourspace Parameters" n 1}
  addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  colourspace_Pulldown_Choice {{parent.colourspace_Pulldown_Choice x1 29}}
  addUserKnob {20 endGroup n -1}
  addUserKnob {20 about_Tab l About}
  addUserKnob {26 description_Text l "" +STARTLINE T "RGB Luminance v0.1.4\n\ncolour-science.org - July 10, 2016\n\nThis Gizmo / Group computes the \"RGB Luminance\" of given colourspace."}
 }
  Input {
   inputs 0
   name Input
   xpos -4880
   ypos -273
  }
set N243ab970 [stack 0]
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name sRGB_luminance_Expression
   xpos -5006
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.0 * r + 1.0 * g + 0.0 * b"
   expr1 "0.0 * r + 1.0 * g + 0.0 * b"
   expr2 "0.0 * r + 1.0 * g + 0.0 * b"
   name Xtreme_RGB_luminance_Expression
   xpos -5136
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr1 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   expr2 "0.26068555009 * r + 0.77489446333 * g + -0.03558001342 * b"
   name V-Gamut_luminance_Expression
   xpos -5286
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr1 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   expr2 "0.212376360705 * r + 0.701059856926 * g + 0.0865637823692 * b"
   name SMPTE-C_RGB_luminance_Expression
   xpos -5436
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr1 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   expr2 "0.215075820116 * r + 0.885068501744 * g + -0.100144321859 * b"
   name S-Gamut3.Cine_luminance_Expression
   xpos -5586
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut3_luminance_Expression
   xpos -5736
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr1 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   expr2 "0.270979670813 * r + 0.786606411221 * g + -0.0575860820344 * b"
   name S-Gamut_luminance_Expression
   xpos -5886
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr1 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   expr2 "0.315199106486 * r + 0.664839320751 * g + 0.0199615727626 * b"
   name Russell_RGB_luminance_Expression
   xpos -6036
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr1 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   expr2 "0.212639005872 * r + 0.715168678768 * g + 0.0721923153607 * b"
   name Rec._709_luminance_Expression
   xpos -6186
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr1 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   expr2 "0.262700212011 * r + 0.677998071519 * g + 0.0593017164699 * b"
   name Rec._2020_luminance_Expression
   xpos -6336
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ROMM_RGB_luminance_Expression
   xpos -6486
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name RIMM_RGB_luminance_Expression
   xpos -6636
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr1 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   expr2 "0.211947869481 * r + 0.723019772048 * g + 0.0650323584709 * b"
   name REDcolor4_luminance_Expression
   xpos -6786
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr1 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   expr2 "0.22890381241 * r + 0.780859824404 * g + -0.0097636368135 * b"
   name REDcolor3_luminance_Expression
   xpos -6936
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr1 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   expr2 "0.169442097101 * r + 0.864828202542 * g + -0.0342702996431 * b"
   name REDcolor2_luminance_Expression
   xpos -7086
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr1 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   expr2 "0.202218816094 * r + 0.758528901746 * g + 0.03925228216 * b"
   name REDcolor_luminance_Expression
   xpos -7236
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ProPhoto_RGB_luminance_Expression
   xpos -7386
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr1 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   expr2 "0.222004309998 * r + 0.706654765925 * g + 0.0713409240765 * b"
   name Pal/Secam_RGB_luminance_Expression
   xpos -7536
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr1 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   expr2 "0.29890307025 * r + 0.586619854659 * g + 0.114477075091 * b"
   name NTSC_RGB_luminance_Expression
   xpos -7686
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr1 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   expr2 "0.31011010912 * r + 0.68988989088 * g + 0.0 * b"
   name Max_RGB_luminance_Expression
   xpos -7836
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr1 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   expr2 "0.261148012901 * r + 0.734851409355 * g + 0.00400057774408 * b"
   name Ekta_Space_PS_5_luminance_Expression
   xpos -7986
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr1 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   expr2 "0.288071128229 * r + 0.71184321781 * g + 8.56539606053e-05 * b"
   name ERIMM_RGB_luminance_Expression
   xpos -8136
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr1 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   expr2 "0.320159696395 * r + 0.601827518042 * g + 0.0780127855624 * b"
   name ECI_RGB_v2_luminance_Expression
   xpos -8286
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr1 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   expr2 "0.278137227919 * r + 0.687858269682 * g + 0.0340045023989 * b"
   name Don_RGB_4_luminance_Expression
   xpos -8436
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr1 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   expr2 "0.194255795247 * r + 0.738556869189 * g + 0.0671873355644 * b"
   name DRAGONcolor2_luminance_Expression
   xpos -8586
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr1 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   expr2 "0.220724022316 * r + 0.839188054601 * g + -0.0599120769169 * b"
   name DRAGONcolor_luminance_Expression
   xpos -8736
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr1 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   expr2 "0.203986297104 * r + 0.882591093117 * g + -0.0865773902211 * b"
   name DCI-P3+_luminance_Expression
   xpos -8886
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr1 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   expr2 "0.209491677913 * r + 0.721595254161 * g + 0.0689130679262 * b"
   name DCI-P3_luminance_Expression
   xpos -9036
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr1 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   expr2 "0.274950336309 * r + 0.658074997381 * g + 0.0669746663108 * b"
   name ColorMatch_RGB_luminance_Expression
   xpos -9186
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr1 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   expr2 "0.261261357526 * r + 0.869642145755 * g + -0.130903503281 * b"
   name Cinema_Gamut_luminance_Expression
   xpos -9336
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr1 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   expr2 "0.176204436534 * r + 0.812984693878 * g + 0.0108108695884 * b"
   name CIE_RGB_luminance_Expression
   xpos -9486
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr1 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   expr2 "0.303318752896 * r + 0.663744233497 * g + 0.0329370136071 * b"
   name Beta_RGB_luminance_Expression
   xpos -9636
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr1 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   expr2 "0.227601772978 * r + 0.738394652678 * g + 0.0340035743443 * b"
   name Best_RGB_luminance_Expression
   xpos -9786
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr1 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   expr2 "0.244615922485 * r + 0.672044251324 * g + 0.0833398261912 * b"
   name Apple_RGB_luminance_Expression
   xpos -9936
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr1 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   expr2 "0.25872824304 * r + 0.724682314949 * g + 0.0165894420113 * b"
   name Adobe_Wide_Gamut_RGB_luminance_Expression
   xpos -10086
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr1 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   expr2 "0.297344975251 * r + 0.627363566255 * g + 0.075291458494 * b"
   name Adobe_RGB_(1998)_luminance_Expression
   xpos -10236
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr1 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   expr2 "0.291953779 * r + 0.823841041511 * g + -0.11579482051 * b"
   name ALEXA_Wide_Gamut_RGB_luminance_Expression
   xpos -10386
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACESproxy_luminance_Expression
   xpos -10536
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScg_luminance_Expression
   xpos -10686
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr1 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   expr2 "0.272228716781 * r + 0.674081765811 * g + 0.0536895174079 * b"
   name ACEScc_luminance_Expression
   xpos -10836
   ypos -251
  }
push $N243ab970
  Expression {
   expr0 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr1 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   expr2 "0.343966449765 * r + 0.728166096613 * g + -0.0721325463786 * b"
   name ACES2065-1_luminance_Expression
   xpos -10986
   ypos -251
  }
  Switch {
   inputs 41
   which {{parent.colourspace_Pulldown_Choice}}
   name colourspace_Switch
   selected true
   xpos -4880
   ypos -225
   addUserKnob {20 User}
   addUserKnob {4 colourspace_Pulldown_Choice l Colourspace M {ACES2065-1 ACEScc ACEScg ACESproxy "ALEXA Wide Gamut RGB" "Adobe RGB (1998)" "Adobe Wide Gamut RGB" "Apple RGB" "Best RGB" "Beta RGB" "CIE RGB" "Cinema Gamut" "ColorMatch RGB" DCI-P3 DCI-P3+ DRAGONcolor DRAGONcolor2 "Don RGB 4" "ECI RGB v2" "ERIMM RGB" "Ekta Space PS 5" "Max RGB" "NTSC RGB" "Pal/Secam RGB" "ProPhoto RGB" REDcolor REDcolor2 REDcolor3 REDcolor4 "RIMM RGB" "ROMM RGB" "Rec. 2020" "Rec. 709" "Russell RGB" S-Gamut S-Gamut3 S-Gamut3.Cine "SMPTE-C RGB" V-Gamut "Xtreme RGB" sRGB}}
  }
  Output {
   name Output
   xpos -4880
   ypos -201
  }
 end_group
set N2e01e400 [stack 0]
 Dot {
  name Dot6
  xpos -336
  ypos -174
 }
set N24358cf0 [stack 0]
 Dot {
  name Dot5
  xpos -336
  ypos -92
 }
 Merge2 {
  inputs 2
  operation multiply
  name I_l_multiplyMerge
  xpos -260
  ypos -95
 }
 Expression {
  temp_name0 I_g_r
  temp_expr0 "c_Floating_Point_Slider * C_av_3d_Position_Knob.x + (1 - c_Floating_Point_Slider) * L_lav_Floating_Point_Slider"
  temp_name1 I_g_g
  temp_expr1 "c_Floating_Point_Slider * C_av_3d_Position_Knob.y + (1 - c_Floating_Point_Slider) * L_lav_Floating_Point_Slider"
  temp_name2 I_g_b
  temp_expr2 "c_Floating_Point_Slider * C_av_3d_Position_Knob.z + (1 - c_Floating_Point_Slider) * L_lav_Floating_Point_Slider"
  expr0 "a_Floating_Point_Slider * r + (1 - a_Floating_Point_Slider) * I_g_r"
  expr1 "a_Floating_Point_Slider * g + (1 - a_Floating_Point_Slider) * I_g_g"
  expr2 "a_Floating_Point_Slider * b + (1 - a_Floating_Point_Slider) * I_g_b"
  channel3 none
  name I_a_tonemapping_operator_Expression
  xpos -260
  ypos -71
  addUserKnob {20 User}
  addUserKnob {7 f_Floating_Point_Slider l f}
  f_Floating_Point_Slider {{parent.f_Floating_Point_Slider}}
  addUserKnob {7 a_Floating_Point_Slider l a}
  a_Floating_Point_Slider {{parent.a_Floating_Point_Slider}}
  addUserKnob {7 c_Floating_Point_Slider l c}
  c_Floating_Point_Slider {{parent.c_Floating_Point_Slider}}
  addUserKnob {7 L_lav_Floating_Point_Slider l L_lav}
  L_lav_Floating_Point_Slider {{exp(parent.log_average_CurveTool.intensitydata.r)}}
  addUserKnob {13 C_av_3d_Position_Knob l C_av}
  C_av_3d_Position_Knob {{parent.average_CurveTool.intensitydata.r} {parent.average_CurveTool.intensitydata.g} {parent.average_CurveTool.intensitydata.b}}
 }
 Expression {
  temp_name0 m
  temp_expr0 "m_Floating_Point_Slider>0?m_Floating_Point_Slider:0.3 + 0.7 * ((log(L_max_Floating_Point_Slider) - L_lav_Floating_Point_Slider) / (log(L_max_Floating_Point_Slider) - log(L_min_Floating_Point_Slider)) ** 1.4)"
  temp_name1 f
  temp_expr1 exp(-f_Floating_Point_Slider)
  expr0 "(f * r) ** m"
  expr1 "(f * g) ** m"
  expr2 "(f * b) ** m"
  channel3 none
  name f_I_a_tonemapping_operator_Expression
  xpos -260
  ypos -47
  addUserKnob {20 User}
  addUserKnob {7 f_Floating_Point_Slider l f}
  f_Floating_Point_Slider {{parent.f_Floating_Point_Slider}}
  addUserKnob {7 m_Floating_Point_Slider l m}
  m_Floating_Point_Slider {{parent.m_Floating_Point_Slider}}
  addUserKnob {7 L_lav_Floating_Point_Slider l L_lav}
  L_lav_Floating_Point_Slider {{exp(parent.log_average_CurveTool.intensitydata.r)}}
  addUserKnob {7 L_min_Floating_Point_Slider l L_min}
  L_min_Floating_Point_Slider {{parent.domain_CurveTool.minlumapixvalue}}
  addUserKnob {7 L_max_Floating_Point_Slider l L_max}
  L_max_Floating_Point_Slider {{parent.domain_CurveTool.maxlumapixvalue}}
 }
 Merge2 {
  inputs 2
  operation plus
  name plus_Merge
  xpos -260
  ypos -9
 }
 Merge2 {
  inputs 2
  operation divide
  name divide_Merge
  selected true
  xpos -260
  ypos 15
 }
set N24373300 [stack 0]
 Clamp {
  name Clamp
  xpos -370
  ypos 35
 }
push $N24373300
 Switch {
  inputs 2
  which {{parent.clamp_output_Check_Box}}
  name clamp_Switch
  xpos -260
  ypos 44
 }
push $N243bf910
 Dot {
  name Dot2
  xpos -6
  ypos -174
 }
 Dot {
  name Dot3
  xpos -6
  ypos 47
 }
 Dissolve {
  inputs 3+1
  which {{parent.mix_Floating_Point_Slider}}
  name Dissolve
  xpos -150
  ypos 40
 }
 Output {
  name Output
  xpos -150
  ypos 72
 }
push $N24358cf0
 CurveTool {
  operation "Max Luma Pixel"
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  maxlumapixvalue 1
  name domain_CurveTool
  xpos -260
  ypos -177
 }
push $N243a5170
 Dot {
  name Dot9
  xpos -116
  ypos -249
 }
 CurveTool {
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  intensitydata {0 0 0 0}
  maxlumapixvalue 1
  name average_CurveTool
  xpos -370
  ypos -252
 }
push $N2e01e400
 Dot {
  name Dot4
  xpos -446
  ypos -198
 }
 Expression {
  temp_name0 e
  temp_expr0 1e-7
  channel3 rgb
  expr3 "log(r + e)"
  name log_Expression
  xpos -480
  ypos -177
 }
 Expression {
  expr0 isnan(r)?0:r
  expr1 isnan(g)?0:r
  expr2 isnan(b)?0:r
  channel3 alpha
  expr3 isnan(a)?0:r
  name filter_nan_Expression
  xpos -480
  ypos -153
 }
 CurveTool {
  avgframes 1
  ROI {0 0 {Input.width} {Input.height}}
  autocropdata {1071 712 3214 2136}
  intensitydata {0 0 0 0}
  name log_average_CurveTool
  xpos -480
  ypos -129
 }
end_group
StickyNote {
 inputs 0
 name StickyNote
 tile_color 0x767676ff
 gl_color 0x767676ff
 label "GLOBAL TONEMAPPING OPERATORS 1.5\n\ncolour-science.org - July 10, 2016\n\nThis file is a playground for implementation of various Global Tonemapping Operators.\n\nBecause Nuke is unable of realtime computation of image average, min and max values, some operators need a domain precomputation.\n\nMore information is available in the following Jupyter Notebook:\n\nhttps://github.com/colour-science/colour-hdri/blob/master/colour_hdri/examples/example_global_tonemapping_operators.ipynb\n\nLatest version of the file will always be available at this URL: https://github.com/colour-science/colour-nuke/blob/master/colour_nuke/scripts/global_tonemapping_operators.nk\n"
 note_font_size 14
 selected true
 xpos 201
 ypos -333
}