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57 lines
1.1 KiB
57 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/GrainyBlur"
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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 ("Radius (X) Samples (Y)", Vector) = (32, 16, 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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#pragma glsl
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#include "UnityCG.cginc"
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sampler2D _MainTex;
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half2 _Params;
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half4 frag(v2f_img i) : SV_Target
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{
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half p = _Params.x / _ScreenParams.y;
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half4 c = half4(0.0, 0.0, 0.0, 0.0);
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float r = sin(dot(i.uv, half2(1233.224, 1743.335)));
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half2 rv = half2(0.0, 0.0);
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for(int k = 0; k < int(_Params.y); k++)
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{
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r = frac(3712.65 * r + 0.61432);
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rv.x = (r - 0.5) * 2.0;
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r = frac(3712.65 * r + 0.61432);
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rv.y = (r - 0.5) * 2.0;
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c += tex2Dlod(_MainTex, half4(i.uv + rv * p, 0.0, 0.0));
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}
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return c / _Params.y;
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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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