From 9310a736c43c17e714e258e484e353acf4d463c2 Mon Sep 17 00:00:00 2001
From: PavelDurov1488 <74456272+PavelDurov1488@users.noreply.github.com>
Date: Tue, 15 Dec 2020 00:21:42 +0800
Subject: [PATCH] Cccalibrator

Its not complete, i need to add dynamic noise and blur and make saturation tunable
---
 data/shaders/Cccalibrator.glsl | 114 +++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 data/shaders/Cccalibrator.glsl

diff --git a/data/shaders/Cccalibrator.glsl b/data/shaders/Cccalibrator.glsl
new file mode 100644
index 000000000..ca4188bc6
--- /dev/null
+++ b/data/shaders/Cccalibrator.glsl
@@ -0,0 +1,114 @@
+/*==========================================*\
+/*=======Calibrator by PavelDurov1488=======*\
+/*==========It's not ready yet...===========*\
+/*===I need to add blur, dynamic noise...===*\
+[configuration]
+
+
+[OptionRangeFloat]
+GUIName = Luminance(Y)
+OptionName = LUMINANCE
+MinValue = 0.000
+MaxValue = 3.000
+StepAmount = 0.050
+DefaultValue = 1.200
+
+[OptionRangeFloat]
+GUIName = Orange-Cyan(I)
+OptionName = ORANGECYAN
+MinValue = 0.000
+MaxValue = 3.000
+StepAmount = 0.050
+DefaultValue = 1.200
+
+[OptionRangeFloat]
+GUIName = Magenta-Green(Q)
+OptionName = MAGENTAGREEN
+MinValue = 0.000
+MaxValue = 3.000
+StepAmount = 0.050
+DefaultValue = 1.200
+
+[OptionRangeFloat]
+GUIName = Black
+OptionName = BLACK
+MinValue = 0.000
+MaxValue = 255.000
+StepAmount = 1.000
+DefaultValue = 10.000
+
+[OptionRangeFloat]
+GUIName = White
+OptionName = WHITE
+MinValue = 0.000
+MaxValue = 255.000
+StepAmount = 1.000
+DefaultValue = 240.000
+
+[OptionRangeFloat]
+GUIName = Noise
+OptionName = NOISE
+MinValue = 0.000
+MaxValue = 50.000
+StepAmount = 1.000
+DefaultValue = 10.000
+
+[OptionRangeFloat]
+GUIName = Saturation
+OptionName = SATURATION
+MinValue = 0.000
+MaxValue = 100.000
+StepAmount = 1.000
+DefaultValue = 50.000
+
+[/configuration]
+*/
+
+float pseudoNoise(vec2 co)
+{
+return fract(sin(dot(vec2(co.x+0.513,co.y+0.4124) ,vec2(12.9898,78.233))) * 43758.5453);// *fract(sin(dot(vec2(co.x+4.231,co.y+3.143) ,vec2(12.9898,78.233)*2.0)) * 43758.5453); //pseudo random number generator
+}
+
+const vec3 RGBtoY = vec3(0.299, 0.587, 0.114);
+const vec3 RGBtoI = vec3(0.596,-0.275,-0.321);
+const vec3 RGBtoQ = vec3(0.212,-0.523, 0.311);
+const vec3 YIQtoR = vec3(1.0, 0.95568806036115671171, 0.61985809445637075388);
+const vec3 YIQtoG = vec3(1.0,-0.27158179694405859326,-0.64687381613840131330);
+const vec3 YIQtoB = vec3(1.0,-1.10817732668266195230, 1.70506455991918171490);  
+
+void main()
+{
+
+  
+  float2 texcoord = GetCoordinates();
+  float2 time = GetTime();
+//  int FrameCount = GetFrameCount();
+  float4 color = Sample();
+//  float brightness_scale = GetOption(BRIGHTNESS_SCALE);
+
+//vec3 czm_saturation(vec3 rgb, float adjustment)
+//{
+//    // Algorithm from Chapter 16 of OpenGL Shading Language
+//    const vec3 W = vec3(0.2125, 0.7154, 0.0721);
+//    vec3 intensity = vec3(dot(rgb, W));
+//    return mix(intensity, rgb, adjustment);
+//}
+
+  // rgb->yiq
+  float3 yuv;
+  yuv.r = pow(dot(color.rgb, float3(0.299, 0.587, 0.114)),LUMINANCE);
+  yuv.g = dot(color.rgb, float3(0.595716,-0.274453,-0.321263))*ORANGECYAN;
+  yuv.b = dot(color.rgb, float3(0.211456,-0.522591, 0.311135))*MAGENTAGREEN;
+
+  // apply brightness to y
+//  yuv.r = saturate(yuv.r * brightness_scale);
+
+  // yuv->rgb
+  color.r = dot(yuv, float3(1.0, 0.95629572, 0.62102442));
+  color.g = dot(yuv, float3(1.0,-0.27212210,-0.64738060));
+  color.b = dot(yuv, float3(1.0,-1.10698902, 1.70461500));
+  color.rgb = saturate(color.rgb*WHITE/255.0+BLACK/255.0-color.rgb*BLACK/255.0+(pseudoNoise(texcoord))*1.0/255.0);
+  
+  color.rgb = saturate(color.rgb+(pseudoNoise(vec2(color.r+color.b,color.g+color.b))-0.5)*NOISE/255.0);
+  SetOutput(saturate(color));
+}