GHZSDKXR/RokidSDK/com.rokid.xr.unity/Runtime/StaticRes/Shaders/UI_GaussianBlur_Cursor.shader

Shader "Rokid/UI_GaussianBlur_Cursor"
{
    Properties
    {
        _MainTex("Base(RGB)",2D) = "white"{}
        _BlurSize("Blur Size",Float) = 0.0
    }
 
    SubShader
    {
        CGINCLUDE
 
        #include "UnityCG.cginc"
 
        sampler2D _MainTex;
        half4 _MainTex_TexelSize;
        float _BlurSize;
 
        struct v2f
        {
            float4 pos : SV_POSITION;
            half2 uv[5] : TEXCOORD0;
        };
 
        v2f vertBlurVertical(appdata_img v)
        {
            v2f o;
            o.pos = UnityObjectToClipPos(v.vertex);
            half2 uv = v.texcoord;
 
            o.uv[0] = uv;
            o.uv[1] = uv + float2(0.0, _MainTex_TexelSize.y * 1.0) * _BlurSize;
			o.uv[2] = uv - float2(0.0, _MainTex_TexelSize.y * 1.0) * _BlurSize;
			o.uv[3] = uv + float2(0.0, _MainTex_TexelSize.y * 2.0) * _BlurSize;
			o.uv[4] = uv - float2(0.0, _MainTex_TexelSize.y * 2.0) * _BlurSize;
					 
			return o;
        }
 
 
        v2f vertBlurHorizontal(appdata_img v)
        {
            v2f o;
            o.pos = UnityObjectToClipPos(v.vertex);
            half2 uv = v.texcoord;
 
            o.uv[0] = uv;
            o.uv[1] = uv + float2(0.0, _MainTex_TexelSize.x * 1.0) * _BlurSize;
			o.uv[2] = uv - float2(0.0, _MainTex_TexelSize.x * 1.0) * _BlurSize;
			o.uv[3] = uv + float2(0.0, _MainTex_TexelSize.x * 2.0) * _BlurSize;
			o.uv[4] = uv - float2(0.0, _MainTex_TexelSize.x * 2.0) * _BlurSize;
					 
			return o;
        }
 
 
        fixed4 fragBlur(v2f i) : SV_Target 
        {
            float weight[3] = {0.4026,0.2442,0.0545}; 
            
            fixed4 sum = tex2D(_MainTex, i.uv[0]).rgba * weight[0];
            
            for (int it = 1 ;it <3 ;it++)
            {
                sum += tex2D(_MainTex,i.uv[it*2-1]).rgba *weight[it];
                sum += tex2D(_MainTex,i.uv[it*2]).rgba *weight[it];
            }
            
            return sum;
        }
        
        ENDCG
 
    	
    	Tags
        {
            "Queue" = "Transparent"
            "IgnoreProjector" = "True"
            "RenderType" = "Transparent"
            "PreviewType" = "Plane"
            "CanUseSpriteAtlas" = "True"
        }

        Cull Off
        Lighting Off
        ZWrite Off
        ZTest Always
        Blend SrcAlpha OneMinusSrcAlpha
    	
        Pass {
			NAME "GAUSSIAN_BLUR_VERTICAL"
			
			CGPROGRAM
			  
			#pragma vertex vertBlurVertical  
			#pragma fragment fragBlur
			  
			ENDCG  
		}
		
		Pass {  
			NAME "GAUSSIAN_BLUR_HORIZONTAL"
			
			CGPROGRAM  
			
			#pragma vertex vertBlurHorizontal  
			#pragma fragment fragBlur
			
			ENDCG
		}
    }
    FallBack "Diffuse"
}