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Shader "Hidden/FWidthOpNode"
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{
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Properties
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{
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_A ("_A", 2D) = "white" {}
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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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CGPROGRAM
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#include "UnityCG.cginc"
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#pragma vertex vert_img
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#pragma fragment frag
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sampler2D _A;
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float4 frag(v2f_img i) : SV_Target
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{
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return fwidth(tex2D( _A, i.uv ));
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}
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ENDCG
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}
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}
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}
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