Shader "Custom/DistortSelf"
{
    Properties
    {
        
        [Header(Flag)]
        _MainTex("Texture", 2D) = "white" {}
        _Noise ("Noise", 2D) = "white" {}
        _distortFactorTime("FactorTime",Range(0,5)) = 0.5
        _distortFactor("factor",Range(0.04,1)) = 0

        [Space(20)]
        [Header(MainBackGround)]
        _2edTex ("Main Tex", 2D) = "white" {}
		//_Specular ("Specular", Color) = (1, 1, 1, 1)
		//_Gloss ("Gloss", Range(8.0, 256)) = 20
        [Space(20)]
        [Header(Cloud)]
        _3rdTex ("3edTexture", 2D) = "white" {}
		_Speed("Rotate Speed",Float)=1

        [Space(20)]
        [Header(Grass)]
        _4thTex ("Texture", 2D) = "white" {}
        _Noise2("Noise", 2D) = "black" {}
        _WindControl("WindControl(x:XSpeed y:YSpeed z:ZSpeed w:windMagnitude)",vector) = (1,0,1,0.5)
        //前面几个分量表示在各个轴向上自身摆动的速度, w表示摆动的强度
        _WaveControl("WaveControl(x:XSpeed y:YSpeed z:ZSpeed w:worldSize)",vector) = (1,0,1,1)
        //前面几个分量表示在各个轴向上风浪的速度, w用来模拟地图的大小,值越小草摆动的越凌乱，越大摆动的越整体

        [HDR]_Color("Color",Color) = (1,1,1,1)
        _XSpeed("XSpeed",Range(-1,1)) = 0
        _YSpeed("YSpeed",Range(-1,1)) = 0
        _AlphaScale("Alpha",Range(0,1)) =1

        [Space(10)]
        [Header(Water)]

        _WaterCol ("Color", Color) = (1,1,1,1)
		_WaterCol_ROOT ("Color ROOT", Color) = (1,1,1,1)
		_WaterCol_image5 ("Color image5", Color) = (1,1,1,1)
		_WaterCol_image5copy ("Color image5copy", Color) = (1,1,1,1)
		_WaterCol_image8 ("Color image8", Color) = (1,1,1,1)
		_WaterCol_image8copy ("Color image8copy", Color) = (1,1,1,1)
		_WaterCol_image15 ("Color image15", Color) = (1,1,1,1)
		_5thTex ("_5thTex", 2D) = "white" { }
		_wave ("_wave", 2D) = "white" { }
		_view_mask0 ("_view_mask0", 2D) = "white" { }
		_smoke ("_smoke", 2D) = "white" { }
		_viewWaterfall ("_viewWaterfall", 2D) = "white" { }
		_view2 ("_view2", 2D) = "white" { }
		_view_mask1 ("_view_mask1", 2D) = "white" { }
		_Speed2("Speed2",Float) = 1
		_Alpha("Alpha",Range(0,1))=1
		[MaterialToggle] PixelSnap ("Pixel snap", Float) = 0

    }
    SubShader
    {
        Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" "CanUseSpriteAtlas"="True"}
        LOD 100
        Blend SrcAlpha OneMinusSrcAlpha
        Cull Off Lighting Off ZWrite Off
        
        
        
        
        
        
        Pass
        {
            ZWrite Off
		
			CGPROGRAM
			
			#pragma vertex vert
			#pragma fragment frag

			#include "Lighting.cginc"
			
			fixed4 _Color;
			sampler2D _2edTex;
			float4 _2edTex_ST;
			fixed4 _Specular;
			float _Gloss;
			
			struct a2v {
				float4 vertex : POSITION;
				float3 normal : NORMAL;
				float4 texcoord : TEXCOORD0;
			};
			
			struct v2f {
				float4 pos : SV_POSITION;
				float3 worldNormal : TEXCOORD0;
				float3 worldPos : TEXCOORD1;
				float2 uv : TEXCOORD2;
			};
			
			v2f vert(a2v v) {
				v2f o;
				o.pos = UnityObjectToClipPos(v.vertex);
				
				o.worldNormal = UnityObjectToWorldNormal(v.normal);
				
				o.worldPos = mul(unity_ObjectToWorld, v.vertex).xyz;
				
				o.uv = v.texcoord.xy * _2edTex_ST.xy + _2edTex_ST.zw;
				// Or just call the built-in function
//				o.uv = TRANSFORM_TEX(v.texcoord, _2edTex);
				
				return o;
			}
			
			fixed4 frag(v2f i) : SV_Target {
				//fixed3 worldNormal = normalize(i.worldNormal);
				//fixed3 worldLightDir = normalize(UnityWorldSpaceLightDir(i.worldPos));
				
				// Use the texture to sample the diffuse color
				fixed4 albedo = tex2D(_2edTex, i.uv);
				
				
				
				return albedo;
			}
			
			ENDCG
        }
        
        Pass
        {
            Blend SrcAlpha OneMinusSrcAlpha
            
            
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag			
			#include "UnityCG.cginc"
 
			sampler2D _3rdTex;
            float4 _3rdTex_ST;
			float _Speed;
 
			struct a2v{
				float4 vertex:POSITION;
				float4 texcoord:TEXCOORD;
			};
			struct v2f{
				float4 pos:POSITION;
				float4 uv:texcoord;
			};
 
			v2f vert(a2v v){
				v2f o;
				o.pos=UnityObjectToClipPos(v.vertex);
				o.uv=v.texcoord;
				return o;
			}
 
			fixed4 frag(v2f i):SV_Target{
				/*//扭曲效果
				fixed2 uv = i.uv - fixed2(0.5,0.5);
				float angle = _Speed * 0.1745/(length(uv) + 0.1);//加0.1是放置length（uv）为0
				float angle2 = angle * _Time.y;
				uv = float2(uv.x*cos(angle2)-uv.y*sin(angle2),uv.y*cos(angle2)+uv.x*sin(angle2));
				uv+=fixed2(0.5,0.5);
				fixed4 c = tex2D(_3rdTex,uv);
				return c;
                */
 
				//缩放
				//float4 uv = i.uv;
				//uv.x*=_Speed;
				//uv.w=0.5;
				//return tex2D(_3rdTex,uv);
 
				//旋转
				//float2 uv=i.uv.xy-float2(0.5,0.5);
				//uv=float2(uv.x*cos(_Speed*_Time.y)-uv.y*sin(_Speed*_Time.y),uv.y*cos(_Speed*_Time.y) + uv.x*sin(_Speed*_Time.y));
				//uv+=float2(0.5,0.5);
				//fixed4 lateUV = tex2D(_3rdTex,uv);
				//return lateUV;
 
				//平移
				return tex2D(_3rdTex,i.uv - _Time.x*fixed2(2,0)* _Speed);
			}
 
			ENDCG
        }
        Pass
        {
            ZWrite off
            CGPROGRAM
            
            #pragma vertex vert
            #pragma fragment frag

            #include "UnityCG.cginc"

            struct appdata
            {
                float4 vertex : POSITION;
                float2 uv : TEXCOORD0;
            };

            struct v2f
            {
                float2 uv : TEXCOORD0;
                float4 vertex : SV_POSITION;
            };

            sampler2D _MainTex;
            float4 _MainTex_ST;
            sampler2D _Noise;
            fixed _distortFactorTime;
            fixed _distortFactor;
            fixed4 _Color;
            float _XSpeed;
            float _YSpeed;
            v2f vert (appdata v)
            {
                v2f o;
                o.vertex = UnityObjectToClipPos(v.vertex);
                o.uv = TRANSFORM_TEX(v.uv, _MainTex);
                o.uv += float2(_XSpeed, _YSpeed)*_Time.y;
                return o;
            }

            fixed4 frag (v2f i) : SV_Target
            {
                // sample the texture
                fixed4 bias = tex2D(_Noise, i.uv+_Time.xy*_distortFactorTime);
                half4 color = tex2D(_MainTex, i.uv+bias.xy*_distortFactor);
                return color*_Color;
            }
            ENDCG
        }
        
       

        
       
        
    }
}