RED Colourspaces Ramblings

red_colourspaces_ramblings.nkp

set cut_paste_input [stack 0]
version 9.0 v4
BackdropNode {
 inputs 0
 name Colour_Derived_Rec_709_BackdropNode
 tile_color 0xaaffffff
 note_font_size 42
 selected true
 xpos 280
 ypos -213
 bdheight 304
}
BackdropNode {
 inputs 0
 name Reference_Rec_709_BackdropNode
 tile_color 0xffaaaaff
 note_font_size 42
 selected true
 xpos -270
 ypos -213
 bdheight 164
}
BackdropNode {
 inputs 0
 name Reference_Rec_709_Through_ACES2065_1_BackdropNode
 tile_color 0xd4ffaaff
 note_font_size 42
 selected true
 xpos -50
 ypos -213
 bdwidth 210
 bdheight 256
}
BackdropNode {
 inputs 0
 name VV_Rec_709_BackdropNode
 tile_color 0xd4aaffff
 note_font_size 42
 selected true
 xpos 500
 ypos -213
 bdheight 352
}
Read {
 inputs 0
 file "/Users/kelsolaar/Downloads/Others/RED Ramblings/Footage/A028_C158_09065U.R3D"
 format "6144 3160 0 0 6144 3160 1 "
 first 0
 last 239
 origfirst 0
 origlast 239
 origset true
 r3d_sdk 9
 r3d_init 2
 r3d_decode_resolution QuarterGood
 r3d_rockect_custom_scale {6144 3160}
 r3d_colorspace REDcolor3
 r3d_gamma_curve "Half Float Linear"
 color_version v2
 r3d_kelvin 10603
 r3d_tint -7.43900013
 r3d_iso 800
 r3d_gain {1 1 1}
 r3d_lggLift {0 0 0}
 r3d_lggGamma {1 1 1}
 r3d_lggGain {1 1 1}
 r3d_pdlog_gamma 0.6000000238
 name REDcolor3_Read
 selected true
 xpos 70
 ypos -133
}
ColorMatrix {
 matrix {
     {0.512136 0.36037 0.127494}
     {0.070377 0.903884 0.025737}
     {-0.020824 0.017671 1.003123}
   }
 name REDcolor3_to_ACES2065_1_ColorMatrix
 selected true
 xpos 70
 ypos -57
}
set N8a892ee0 [stack 0]
ColorMatrix {
 matrix {
     {2.521977 -1.1370661 -0.3849108}
     {-0.2754767 1.3698266 -0.0943499}
     {-0.0159868 -0.1478183 1.1638051}
   }
 name ACES2065_1_to_Rec_709_CAT02_ColorMatrix
 selected true
 xpos -40
 ypos -33
}
Read {
 inputs 0
 file "/Users/kelsolaar/Downloads/Others/RED Ramblings/Footage/A028_C158_09065U.R3D"
 format "1120 480 0 0 1120 480 1 "
 first 0
 last 390
 origfirst 0
 origlast 390
 origset true
 r3d_sdk 9
 r3d_init 2
 r3d_decode_resolution QuarterGood
 r3d_rockect_custom_scale {6144 3160}
 r3d_colorspace Rec709
 r3d_gamma_curve "Half Float Linear"
 color_version v2
 r3d_kelvin 10603
 r3d_tint -7.43900013
 r3d_iso 800
 r3d_gain {1 1 1}
 r3d_lggLift {0 0 0}
 r3d_lggGamma {1 1 1}
 r3d_lggGain {1 1 1}
 r3d_pdlog_gamma 0.6000000238
 name Rec_709_Read
 selected true
 xpos -260
 ypos -133
}
Dot {
 name Dot3
 selected true
 xpos -226
 ypos 18
}
set N10de2830 [stack 0]
push $N8a892ee0
ColorMatrix {
 matrix {
     {2.5217167 -1.1341655 -0.3875512}
     {-0.2764765 1.3727113 -0.0962348}
     {-0.0153828 -0.152994 1.1683768}
   }
 name ACES2065_1_to_Rec_709_Bradford_ColorMatrix
 selected true
 xpos 70
 ypos -33
}
Merge2 {
 inputs 2
 operation difference
 name Published_Difference_Merge
 selected true
 xpos 70
 ypos 15
}
push $N10de2830
Dot {
 name Dot1
 selected true
 xpos -226
 ypos 66
}
set N10d98ca0 [stack 0]
Dot {
 name Dot2
 selected true
 xpos -226
 ypos 114
}
Read {
 inputs 0
 file "/Users/kelsolaar/Downloads/Others/RED Ramblings/Footage/A028_C158_09065U.R3D"
 format "6144 3160 0 0 6144 3160 1 "
 first 0
 last 239
 origfirst 0
 origlast 239
 origset true
 r3d_sdk 9
 r3d_init 2
 r3d_decode_resolution QuarterGood
 r3d_rockect_custom_scale {6144 3160}
 r3d_colorspace REDcolor3
 r3d_gamma_curve "Half Float Linear"
 color_version v2
 r3d_kelvin 10603
 r3d_tint -7.43900013
 r3d_iso 800
 r3d_gain {1 1 1}
 r3d_lggLift {0 0 0}
 r3d_lggGamma {1 1 1}
 r3d_lggGain {1 1 1}
 r3d_pdlog_gamma 0.6000000238
 name REDcolor3_Read2
 selected true
 xpos 510
 ypos -133
}
ColorMatrix {
 matrix {
     {1.23453839 -0.12016332 -0.11437506}
     {-0.04354624 1.11069553 -0.06714929}
     {-0.02172755 -0.09449363 1.11622118}
   }
 name REDcolor3_to_Rec_709_VV_ColorMatrix
 selected true
 xpos 510
 ypos -57
}
Merge2 {
 inputs 2
 operation difference
 name VV_Primaries_Difference_Merge
 selected true
 xpos 510
 ypos 111
}
push $N10d98ca0
Read {
 inputs 0
 file "/Users/kelsolaar/Downloads/Others/RED Ramblings/Footage/A028_C158_09065U.R3D"
 format "6144 3160 0 0 6144 3160 1 "
 first 0
 last 239
 origfirst 0
 origlast 239
 origset true
 r3d_sdk 9
 r3d_init 2
 r3d_decode_resolution QuarterGood
 r3d_rockect_custom_scale {6144 3160}
 r3d_colorspace REDcolor3
 r3d_gamma_curve "Half Float Linear"
 color_version v2
 r3d_kelvin 10603
 r3d_tint -7.43900013
 r3d_iso 800
 r3d_gain {1 1 1}
 r3d_lggLift {0 0 0}
 r3d_lggGamma {1 1 1}
 r3d_lggGain {1 1 1}
 r3d_pdlog_gamma 0.6000000238
 name REDcolor3_Read1
 selected true
 xpos 290
 ypos -133
}
ColorMatrix {
 matrix {
     {1.21970738 -0.12325813 -0.09644852}
     {-0.04298189 1.13943848 -0.09645589}
     {-0.04297617 -0.12318668 1.16616356}
   }
 name REDcolor3_to_Rec_709_ColorMatrix
 selected true
 xpos 290
 ypos -57
}
Merge2 {
 inputs 2
 operation difference
 name Colour_Primaries_Difference_Merge
 selected true
 xpos 290
 ypos 63
}
Viewer {
 inputs 2
 frame_range 0-390
 translate {0.0680000037 -0.1199999973}
 name Viewer1
 selected true
 xpos 510
 ypos 182
}
StickyNote {
 inputs 0
 name StickyNote
 label "- Salmon Pink: RED straight Rec. 709 reference.\n\n- Green: RED REDcolor3 to Rec. 709 reference computed using their official ACES 2065-1 matrices, it seems that chromatic adaptation is performed with Bradford CAT instead of CAT02 since the difference in Nuke is somehow less pronounced using the Bradford CAT.\n\n- Blue: Our REDcolor3 conversion to Rec. 709 using the primaries computed as per our notebook.\n\n- Purple: VideoVillage REDcolor3 conversion to Rec. 709 using their derived primaries, chromatic adaptation has been performed using Bradford CAT."
 selected true
 xpos -375
 ypos -350
}