59 lines
1.0 KiB
Plaintext
59 lines
1.0 KiB
Plaintext
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Shader "Hidden/CW/ShapeOutline"
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{
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Properties
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{
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}
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SubShader
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{
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Cull Off
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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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#include "UnityCG.cginc"
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struct appdata
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct v2f
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{
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float2 uv : TEXCOORD0;
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float4 vertex : SV_POSITION;
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};
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sampler2D _CW_ShapeTex;
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float4 _CW_ShapeChannel;
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float4 _CW_ShapeCoords;
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float4 _CW_ShapeColor;
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void Vert (in appdata i, out v2f o)
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{
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o.vertex = UnityObjectToClipPos(i.vertex);
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o.uv = i.uv;
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}
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fixed4 Frag (v2f i) : SV_Target
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{
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float u = lerp(_CW_ShapeCoords.x, _CW_ShapeCoords.z, i.uv.x);
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float v = lerp(_CW_ShapeCoords.y, _CW_ShapeCoords.w, i.uv.y);
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float shape = dot(tex2D(_CW_ShapeTex, float2(u, v)), _CW_ShapeChannel);
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float side = shape + abs(ddx(shape)) + abs(ddy(shape));
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if (shape >= 0.5f || side < 0.5f)
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{
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discard;
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}
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return _CW_ShapeColor;
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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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