53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
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Shader "Zhanyou/Effect/RadialBlur"
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{
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Properties
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{
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[PerRendererData] _MainTex ("Texture", 2D) = "white" {}
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_BlurFactor("BlurFactor", Range(0, 1)) = 0.12
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_BlurRatio("BlurRatio", Range(0, 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_img
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#pragma fragment frag
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#pragma fragmentoption ARB_precision_hint_fastest
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#include "UnityCG.cginc"
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uniform sampler2D _MainTex;
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uniform float _BlurFactor;
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uniform float _BlurRatio;
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half4 blur(sampler2D mainTex, float2 uv, float blurFactor)
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{
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float2 delta = 0.5 - uv;
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float4 uv01 = uv.xyxy + blurFactor * delta.xyxy * float4(0.5, 0.5, 1.0, 1.0);
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float4 uv23 = uv.xyxy + blurFactor * delta.xyxy * float4(1.5, 1.5, 2.0, 2.0);
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float4 uv45 = uv.xyxy + blurFactor * delta.xyxy * float4(2.5, 2.5, 3.0, 3.0);
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float4 uv67 = uv.xyxy + blurFactor * delta.xyxy * float4(3.5, 3.5, 4.0, 4.0);
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half4 color = 0.0;
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color += 0.225 * tex2D(mainTex, uv);
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color += 0.150 * tex2D(mainTex, uv01.xy);
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color += 0.150 * tex2D(mainTex, uv01.zw);
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color += 0.110 * tex2D(mainTex, uv23.xy);
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color += 0.110 * tex2D(mainTex, uv23.zw);
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color += 0.075 * tex2D(mainTex, uv45.xy);
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color += 0.075 * tex2D(mainTex, uv45.zw);
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color += 0.0525 * tex2D(mainTex, uv67.xy);
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color += 0.0525 * tex2D(mainTex, uv67.zw);
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return color;
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}
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fixed4 frag (v2f_img i) : SV_Target
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{
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return blur(_MainTex, i.uv, _BlurFactor * _BlurRatio);
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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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