unity 高斯模糊 shader

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于 2024-10-25 14:37:32 发布 · 421 阅读

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#unity #游戏引擎

Shader "Custom/BackBlur"
{
    Properties
    {
        _MainTex("Sprite Texture", 2D) = "white" {}
        _Color("Main Color", Color) = (1,1,1,1)
        _Size("Size", Range(0, 20)) = 1
    }
        SubShader
        {
            Tags { "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" "PreviewType" = "Plane" "CanUseSpriteAtlas" = "True" }
            LOD 200
            ZWrite Off
            Blend SrcAlpha OneMinusSrcAlpha

            // Horizontal blur  
            GrabPass {}
            Pass
            {
                Tags { "LightMode" = "Always" }
                Name "BackBlurHor"
                CGPROGRAM
                #pragma vertex vert  
                #pragma fragment frag  
                #pragma fragmentoption ARB_precision_hint_fastest  
                #include "UnityCG.cginc"  

                struct appdata_t
                {
                    float4 vertex : POSITION;
                    f