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37 lines
720 B
37 lines
720 B
Shader "Hidden/Grayscale Effect" { |
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Properties { |
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_MainTex ("Base (RGB)", 2D) = "white" {} |
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_RampTex ("Base (RGB)", 2D) = "grayscaleRamp" {} |
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} |
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SubShader { |
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Pass { |
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ZTest Always Cull Off ZWrite 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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#include "UnityCG.cginc" |
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uniform sampler2D _MainTex; |
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uniform sampler2D _RampTex; |
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uniform half _RampOffset; |
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half4 _MainTex_ST; |
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fixed4 frag (v2f_img i) : SV_Target |
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{ |
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fixed4 original = tex2D(_MainTex, UnityStereoScreenSpaceUVAdjust(i.uv, _MainTex_ST)); |
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fixed grayscale = Luminance(original.rgb); |
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half2 remap = half2 (grayscale + _RampOffset, .5); |
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fixed4 output = tex2D(_RampTex, remap); |
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output.a = original.a; |
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return output; |
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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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