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129 lines
3.5 KiB
129 lines
3.5 KiB
3 years ago
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// Colorful FX - Unity Asset
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// Copyright (c) 2015 - Thomas Hourdel
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// http://www.thomashourdel.com
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Shader "Hidden/Colorful/Hue Saturation Value"
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{
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Properties
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{
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_MainTex ("Base (RGB)", 2D) = "white" {}
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_Master ("Master (HSV)", Vector) = (0, 0, 0, 0)
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_Reds ("Reds (HSV)", Vector) = (0, 0, 0, 0)
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_Yellows ("Yellows (HSV)", Vector) = (0, 0, 0, 0)
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_Greens ("Greens (HSV)", Vector) = (0, 0, 0, 0)
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_Cyans ("Cyans (HSV)", Vector) = (0, 0, 0, 0)
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_Blues ("Blues (HSV)", Vector) = (0, 0, 0, 0)
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_Magentas ("Magentas (HSV)", Vector) = (0, 0, 0, 0)
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}
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CGINCLUDE
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#include "UnityCG.cginc"
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#include "./Colorful.cginc"
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sampler2D _MainTex;
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half4 _Master;
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half4 _Reds;
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half4 _Yellows;
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half4 _Greens;
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half4 _Cyans;
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half4 _Blues;
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half4 _Magentas;
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half4 frag_simple(v2f_img i) : SV_Target
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{
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half4 color = tex2D(_MainTex, i.uv);
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half3 hsv = RGBtoHSV(color.rgb);
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hsv.x = rot10(hsv.x + _Master.x);
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hsv.y = hsv.y + _Master.y;
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hsv.z = hsv.z + _Master.z;
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return half4(HSVtoRGB(hsv), color.a);
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}
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half4 frag_advanced(v2f_img i) : SV_Target
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{
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half4 color = tex2D(_MainTex, i.uv);
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// Master
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half3 hsv = RGBtoHSV(color.rgb);
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hsv.x = rot10(hsv.x + _Master.x);
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hsv.y = hsv.y + _Master.y;
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hsv.z = hsv.z + _Master.z;
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half ts = 1.0 / 360.0;
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half ts60 = ts * 60.0;
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half4 c15_45_75_105 = half4(15.0, 45.0, 75.0, 105.0) * ts;
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half4 c135_165_195_225 = half4(135.0, 165.0, 195.0, 225.0) * ts;
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half4 c255_285_315_345 = half4(255.0, 285.0, 315.0, 345.0) * ts;
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half dr, dy, dg, dc, db, dm;
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// Reds
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hsv.x = rot10(hsv + ts60);
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dr = saturate(invlerp(c15_45_75_105.x, c15_45_75_105.y, hsv.x)) * (1.0 - saturate(invlerp(c15_45_75_105.z, c15_45_75_105.w, hsv.x)));
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hsv.x = rot10(hsv - ts60);
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// Yellow
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dy = saturate(invlerp(c15_45_75_105.x, c15_45_75_105.y, hsv.x)) * (1.0 - saturate(invlerp(c15_45_75_105.z, c15_45_75_105.w, hsv.x)));
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// Greens
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dg = saturate(invlerp(c15_45_75_105.z, c15_45_75_105.w, hsv.x)) * (1.0 - saturate(invlerp(c135_165_195_225.x, c135_165_195_225.y, hsv.x)));
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// Cyans
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dc = saturate(invlerp(c135_165_195_225.x, c135_165_195_225.y, hsv.x)) * (1.0 - saturate(invlerp(c135_165_195_225.z, c135_165_195_225.w, hsv.x)));
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// Blues
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db = saturate(invlerp(c135_165_195_225.z, c135_165_195_225.w, hsv.x)) * (1.0 - saturate(invlerp(c255_285_315_345.x, c255_285_315_345.y, hsv.x)));
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// Magentas
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dm = saturate(invlerp(c255_285_315_345.x, c255_285_315_345.y, hsv.x)) * (1.0 - saturate(invlerp(c255_285_315_345.z, c255_285_315_345.w, hsv.x)));
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hsv.x = rot10(hsv.x + dr * _Reds.x + dy * _Yellows.x + dg * _Greens.x + dc * _Cyans.x + db * _Blues.x + dm * _Magentas.x);
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hsv.y = hsv.y + dr * _Reds.y + dy * _Yellows.y + dg * _Greens.y + dc * _Cyans.y + db * _Blues.y + dm * _Magentas.y;
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hsv.z = hsv.z + dr * _Reds.z + dy * _Yellows.z + dg * _Greens.z + dc * _Cyans.z + db * _Blues.z + dm * _Magentas.z;
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return half4(HSVtoRGB(hsv), color.a);
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}
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ENDCG
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SubShader
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{
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ZTest Always Cull Off ZWrite Off
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Fog { Mode off }
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// (0) Simple
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Pass
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{
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CGPROGRAM
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#pragma vertex vert_img
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#pragma fragment frag_simple
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma glsl
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#pragma exclude_renderers flash
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ENDCG
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}
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// (1) Advanced
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Pass
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{
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CGPROGRAM
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#pragma vertex vert_img
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#pragma fragment frag_advanced
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma target 3.0
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#pragma glsl
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#pragma exclude_renderers flash
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ENDCG
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}
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}
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FallBack off
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}
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