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57 lines
1.2 KiB
57 lines
1.2 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/SCurveContrast"
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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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_Red ("Steepness (X) Gamma (Y)", Vector) = (0, 0, 0, 0)
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_Green ("Steepness (X) Gamma (Y)", Vector) = (0, 0, 0, 0)
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_Blue ("Steepness (X) Gamma (Y)", Vector) = (0, 0, 0, 0)
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}
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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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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
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#pragma fragmentoption ARB_precision_hint_fastest
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#pragma target 3.0
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#include "UnityCG.cginc"
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sampler2D _MainTex;
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half2 _Red;
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half2 _Green;
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half2 _Blue;
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half curve(half o, half2 params)
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{
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half g = pow(2.0, params.x) * 0.5;
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half c = (o < 0.5) ? pow(o, params.x) * g : 1.0 - pow(1.0 - o, params.x) * g;
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return pow(c, params.y);
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}
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half4 frag(v2f_img i) : SV_Target
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{
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half4 color = saturate(tex2D(_MainTex, i.uv));
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half r = curve(color.r, _Red);
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half g = curve(color.g, _Green);
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half b = curve(color.b, _Blue);
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return half4(r, g, b, color.a);
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}
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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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