81 lines
1.4 KiB
Plaintext
81 lines
1.4 KiB
Plaintext
/*
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Simple box blur shader for UI elements, blurring the background.
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This variant uses independent grab passes to avoid glitches that occur when
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elements touch viewport borders.
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This also means it will work with multiple blurry widgets set on top of each
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other.
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*/
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Shader "UI/Blur" {
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Properties {
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[HideInInspector]
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_MainTex("", 2D) = "" {}
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_Opacity("Opacity", Range(0.0, 1.0)) = 0.5
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_Size("Size", Range(1.0, 16.0)) = 4.0
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}
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SubShader {
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Tags {
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"Queue" = "Transparent"
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"IgnoreProjector" = "True"
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"RenderType" = "Transparent"
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"PreviewType" = "Plane"
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}
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Cull Off
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ZTest [unity_GUIZTestMode]
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ZWrite Off
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Blend SrcAlpha OneMinusSrcAlpha
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CGINCLUDE
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#include "UIBlur.cginc"
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sampler2D _GrabTexture;
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float4 PS_BlurX(
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float4 p : SV_POSITION,
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float2 uv1 : TEXCOORD0,
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float4 uv2 : TEXCOORD1
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) : SV_TARGET {
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return blur_x(uv1, uv2, _GrabTexture);
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}
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float4 PS_BlurY(
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float4 p : SV_POSITION,
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float2 uv1 : TEXCOORD0,
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float4 uv2 : TEXCOORD1,
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float4 img_color : COLOR
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) : SV_TARGET {
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return blur_y(uv1, uv2, img_color, _GrabTexture);
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}
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ENDCG
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GrabPass {
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Tags {
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"LightMode" = "Always"
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}
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}
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Pass {
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CGPROGRAM
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#pragma vertex VS_QuadProj
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#pragma fragment PS_BlurX
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ENDCG
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}
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GrabPass {
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Tags {
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"LightMode" = "Always"
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}
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}
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Pass {
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CGPROGRAM
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#pragma vertex VS_QuadProjColor
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#pragma fragment PS_BlurY
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ENDCG
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}
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}
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} |