OpenDRT v0.2.8

- chroma contrast sources from unscaled norm to avoid breaking hdr
- chroma normalize only affect primaries not secondaries to avoid over-compressing yellows etc
- dctl: remove contrast and flare from exposed parameters. a view transform is not a grading tool.
- bugfix dctl: rgb was clamped before weighted sum in norm
- bugfix dctl: sdivf function was clamping to zero at a high epsilon

Author: jedypod

display-transforms/nuke/OpenDRT.nk

@@ -3,7 +3,7 @@ push $cut_paste_input
 Group {
  name OpenDRT
  addUserKnob {20 OpenDRT}
- addUserKnob {26 about_label l " " T "<style> a:link \{ color: #ccc \}</style>\n<font color=#ccc>\n<b>OpenDRT</b> created by Jed Smith\n<br>v0.2.7 | <a href=https://github.com/jedypod/open-display-transform>documentation</a><br>"}
+ addUserKnob {26 about_label l " " T "<style> a:link \{ color: #ccc \}</style>\n<font color=#ccc>\n<b>OpenDRT</b> created by Jed Smith\n<br>v0.2.8 | <a href=https://github.com/jedypod/open-display-transform>documentation</a><br>"}
  addUserKnob {41 gamut l "in gamut" T InGamut_to_XYZ.gamut}
  addUserKnob {26 spacer01 l "" +STARTLINE}
  addUserKnob {26 tonescale_label l " " T <b>tonescale</b>}
@@ -56,7 +56,7 @@ Group {
    xpos 324
    ypos -546
   }
-set N155b900 [stack 0]
+set Nb02d9600 [stack 0]
   ColorMatrix {
    matrix {
        {{"SwitchGamut.input\[value SwitchGamut.which].matrix"} {"SwitchGamut.input\[value SwitchGamut.which].matrix"} {"SwitchGamut.input\[value SwitchGamut.which].matrix"}}
@@ -72,14 +72,14 @@ set N155b900 [stack 0]
    xpos 290
    ypos -250
   }
-push $N155b900
+push $Nb02d9600
   Dot {
    name Dot391
    label " *RGB to XYZ D65 CAT: XYZ Scaling"
    xpos 434
    ypos -546
   }
-set N155a400 [stack 0]
+set Nb02d8100 [stack 0]
   ColorMatrix {
    matrix {
        {0.7006223202 0.1487748027 0.101058729}
@@ -91,7 +91,7 @@ set N155a400 [stack 0]
    xpos 1390
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.705396831 0.1640413404 0.08101775497}
@@ -103,7 +103,7 @@ push $N155a400
    xpos 1280
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.5990839005 0.2489254922 0.1024464965}
@@ -115,7 +115,7 @@ push $N155a400
    xpos 1170
    ypos -465
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.735275209 0.06860940903 0.1465712786}
@@ -127,7 +127,7 @@ push $N155a400
    xpos 1060
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.6380076408 0.2147038132 0.09774445742}
@@ -139,7 +139,7 @@ push $N155a400
    xpos 950
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.4123909175 0.3575843573 0.1804807931}
@@ -151,7 +151,7 @@ push $N155a400
    xpos 840
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.6369581223 0.1446169168 0.1688809693}
@@ -163,7 +163,7 @@ push $N155a400
    xpos 730
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.4865711331 0.2656677067 0.1982173175}
@@ -175,7 +175,7 @@ push $N155a400
    xpos 620
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.6609312296 0.1336961389 0.1558285803}
@@ -187,7 +187,7 @@ push $N155a400
    xpos 510
    ypos -466
   }
-push $N155a400
+push $Nb02d8100
   ColorMatrix {
    matrix {
        {0.9503623843 0 9.346324805e-05}
@@ -230,7 +230,7 @@ push $N155a400
    xpos 324
    ypos -516
   }
-set Nc8f88100 [stack 0]
+set N4d6a9d00 [stack 0]
   ColorMatrix {
    matrix {
        {{"SwitchGamut.input\[value SwitchGamut.which].matrix"} {"SwitchGamut.input\[value SwitchGamut.which].matrix"} {"SwitchGamut.input\[value SwitchGamut.which].matrix"}}
@@ -246,14 +246,14 @@ set Nc8f88100 [stack 0]
    xpos 290
    ypos -310
   }
-push $Nc8f88100
+push $N4d6a9d00
   Dot {
    name Dot1
    label " XYZ D65 to *RGB CAT: XYZ Scaling"
    xpos 434
    ypos -516
   }
-set Nc4766b00 [stack 0]
+set N4d6a8800 [stack 0]
   ColorMatrix {
    matrix {
        {1 0 0}
@@ -265,7 +265,7 @@ set Nc4766b00 [stack 0]
    xpos 950
    ypos -465
   }
-push $Nc4766b00
+push $N4d6a8800
   ColorMatrix {
    matrix {
        {3.240968943 -1.537382722 -0.4986106157}
@@ -277,7 +277,7 @@ push $Nc4766b00
    xpos 840
    ypos -465
   }
-push $Nc4766b00
+push $N4d6a8800
   ColorMatrix {
    matrix {
        {2.72539258 -1.01800251 -0.4401629865}
@@ -289,7 +289,7 @@ push $Nc4766b00
    xpos 730
    ypos -465
   }
-push $Nc4766b00
+push $N4d6a8800
   ColorMatrix {
    matrix {
        {2.40274024 -0.8974836469 -0.3880532086}
@@ -301,7 +301,7 @@ push $Nc4766b00
    xpos 620
    ypos -465
   }
-push $Nc4766b00
+push $N4d6a8800
   ColorMatrix {
    matrix {
        {2.493495464 -0.9313831329 -0.4027105868}
@@ -313,7 +313,7 @@ push $Nc4766b00
    xpos 510
    ypos -465
   }
-push $Nc4766b00
+push $N4d6a8800
   ColorMatrix {
    matrix {
        {1.716650844 -0.3556707203 -0.2533662021}
@@ -338,7 +338,7 @@ push $Nc4766b00
   xpos 214
   ypos -558
  }
-set Nc1213200 [stack 0]
+set N4d7dcf00 [stack 0]
  Dot {
   name Dot2
   xpos -226
@@ -358,7 +358,7 @@ set Nc1213200 [stack 0]
   addUserKnob {7 bw R 0.05 0.6}
   bw 0.3
  }
-set Nc1212400 [stack 0]
+set N4d7dc100 [stack 0]
  Expression {
   temp_name0 ts0
   temp_expr0 invert?(r+sqrt(r*(4*fl+r)))/2:(m*r/(r+s))**c
@@ -405,20 +405,20 @@ set Nc1212400 [stack 0]
   xpos -226
   ypos -342
  }
-set Nc1211600 [stack 0]
+set N4d7b3200 [stack 0]
  Dot {
   name Dot9
   xpos -226
   ypos -126
  }
-set N47a46400 [stack 0]
+set N4d7b2b00 [stack 0]
  Dot {
   name Dot3
   xpos -226
   ypos 13
  }
-push $Nc1212400
-push $Nc1213200
+push $N4d7dc100
+push $N4d7dcf00
  MergeExpression {
   inputs 2
   expr0 Ar==0?0:max(-2,Br/Ar)
@@ -449,7 +449,7 @@ push $Nc1213200
   xpos 214
   ypos -414
  }
-set N47a44f00 [stack 0]
+set N4d7b0f00 [stack 0]
  Expression {
   temp_name0 mx
   temp_expr0 max(r,g,b)
@@ -476,20 +476,14 @@ set N47a44f00 [stack 0]
   xpos 104
   ypos -342
  }
-set N46123900 [stack 0]
+set N4d773900 [stack 0]
  Dot {
   name Dot10
   xpos 104
   ypos -246
  }
-set N109bab00 [stack 0]
-push $N47a46400
- Dot {
-  name Dot11
-  xpos -6
-  ypos -126
- }
-set N109ba400 [stack 0]
+set N4d773200 [stack 0]
+push $N4d7dc100
  MergeExpression {
   inputs 2
   temp_name0 f
@@ -504,16 +498,16 @@ set N109ba400 [stack 0]
   addUserKnob {7 p R 1 2}
   p 1.2
   addUserKnob {7 m}
-  m 0.3
+  m 0.5
  }
-push $N109ba400
-push $Nc1211600
+push $N4d7b2b00
+push $N4d7b3200
  Dot {
   name Dot6
   xpos -116
   ypos -342
  }
-set Nc1210800 [stack 0]
+set N4d771d00 [stack 0]
  Expression {
   channel0 rgba
   expr0 r**(1/dch)*(1-r)+r*r
@@ -541,8 +535,8 @@ set Nc1210800 [stack 0]
   xpos -6
   ypos -222
  }
-set N47a46b00 [stack 0]
-push $N109bab00
+set N4d770100 [stack 0]
+push $N4d773200
  Merge2 {
   inputs 2
   operation multiply
@@ -551,13 +545,13 @@ push $N109bab00
   xpos 70
   ypos -184
  }
-push $N47a46b00
-push $N46123900
-push $Nc1210800
+push $N4d770100
+push $N4d773900
+push $N4d771d00
  MergeExpression {
   inputs 2
   channel0 rgba
-  expr0 Aa*r
+  expr0 Br*max(Ar**2,Ag**2,Ab**2)
   name chf
   xpos -40
   ypos -345
@@ -574,7 +568,7 @@ push $Nc1210800
   addUserKnob {7 p}
   p 0.65
  }
-push $N47a44f00
+push $N4d7b0f00
  MergeExpression {
   inputs 2
   temp_name0 mx
@@ -685,7 +679,7 @@ push $N47a44f00
    xpos 400
    ypos -129
   }
-set Nc648b200 [stack 0]
+set N4d70b200 [stack 0]
   Expression {
    temp_name0 Yd
    temp_expr0 0.2627*r+0.6780*g+0.0593*b
@@ -718,7 +712,7 @@ set Nc648b200 [stack 0]
    addUserKnob {7 _c}
    _c {{0.5-_a*log(4*_a)}}
   }
-push $Nc648b200
+push $N4d70b200
   Expression {
    temp_name0 rp
    temp_expr0 pow(r,m_1)
@@ -744,7 +738,7 @@ push $Nc648b200
    addUserKnob {7 c_3}
    c_3 {{2392/128}}
   }
-push $Nc648b200
+push $N4d70b200
   Expression {
    expr0 sign(r)*pow(fabs(r),1/p)
    expr1 sign(g)*pow(fabs(g),1/p)
@@ -774,4 +768,4 @@ push $Nc648b200
   xpos 180
   ypos 129
  }
-end_group
+end_group