106 lines
2.9 KiB
Plaintext
106 lines
2.9 KiB
Plaintext
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// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
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// Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,*)' with 'UnityObjectToClipPos(*)'
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Shader "Custom/TVStatic"
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{
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Properties
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{
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_ColorA("Color A", Color) = (1,1,1,1)
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_ColorB("Color B", Color) = (0,0,0,0)
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_ResX("X Resolution", Float) = 100
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_ResY("Y Resolution", Float) = 200
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_ScaleWithZoom("Scale With Cam Distance", Range(0,1)) = 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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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#pragma target 3.0
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#include "UnityCG.cginc"
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//This produces random values between 0 and 1
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float rand(float2 co)
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{
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return frac((sin(dot(co.xy , float2(12.345 * _Time.w, 67.890 * _Time.w))) * 12345.67890 + _Time.w));
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}
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fixed4 _ColorA;
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fixed4 _ColorB;
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float _ResX;
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float _ResY;
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float _ScaleWithZoom;
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struct vertexInput
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{
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float4 vertex : POSITION;
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float4 texcoord0 : TEXCOORD0;
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float4 texcoord2 : TEXCOORD2;
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};
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struct fragmentInput
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{
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float4 position : SV_POSITION;//SV_POSITION
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float4 texcoord0 : TEXCOORD0;
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float4 camDist : TEXCOORD2;
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};
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fragmentInput vert(vertexInput i)
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{
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fragmentInput o;
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UNITY_INITIALIZE_OUTPUT(fragmentInput, o); //5-28-2016 added to fix d3d11 errors
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o.position = UnityObjectToClipPos(i.vertex);
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o.texcoord0 = i.texcoord0;
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//get the model's origin, so we can calculate the distance to camera (and scale the noise accordingly)
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float4 modelOrigin = mul(unity_ObjectToWorld, float4(0.0, 0.0, 0.0, 1.0));
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o.camDist.x = distance(_WorldSpaceCameraPos.xyz, modelOrigin.xyz);
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o.camDist.x = lerp(1.0, o.camDist.x, _ScaleWithZoom);
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return o;
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}
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//5-28-2016 changed VPOS to SV_POSITION to get rid of duplicate semantic error
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fixed4 frag(float4 screenPos : SV_POSITION, fragmentInput i, out float depth : SV_Depth) : SV_Target
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{
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fixed4 sc = fixed4((screenPos.xy), 0.0, 1.0);
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sc *= 0.001;
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sc.xy -= 0.5;
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sc.xy *= i.camDist.xx;
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sc.xy += 0.5;
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//round the screen coordinates to give it a blocky appearance
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sc.x = round(sc.x * _ResX) / _ResX;
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sc.y = round(sc.y * _ResY) / _ResY;
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depth = 1;
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float noise = rand(sc.xy);
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float4 stat = lerp(_ColorA, _ColorB, noise.x);
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return fixed4(stat.xyz, 1.0);
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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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