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52 lines
1.1 KiB
52 lines
1.1 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/Contrast Vignette"
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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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_Params ("Sharpness (X) Darkness (Y) Contrast (Z) Edge (W)", Vector) = (0.1, 0.3, 0.25, 0.5)
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_Coeffs ("Luminance coeffs (RGB)", Vector) = (0.5, 0.5, 0.5, 1.0)
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_Center ("Center point (XY)", Vector) = (0.5, 0.5, 1.0, 1.0)
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}
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SubShader
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{
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Pass
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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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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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#include "UnityCG.cginc"
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sampler2D _MainTex;
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half4 _Params;
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half3 _Coeffs;
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half4 _Center;
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half4 frag(v2f_img i) : SV_Target
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{
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half4 color = tex2D(_MainTex, i.uv);
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half d = distance(i.uv, _Center.xy);
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half multiplier = smoothstep(0.8, _Params.x * 0.799, d * (_Params.y + _Params.x));
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color.rgb = (color.rgb - _Coeffs) * max((1.0 - _Params.z * (multiplier - 1.0) - _Params.w), 1.0) + _Coeffs;
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color.rgb *= multiplier;
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return color;
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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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