Shader "Sbin/SurfaceShader" {	Properties {		_Glossiness ("Smoothness", Range(0,1)) = 0.5		_Metallic ("Metallic", Range(0,1)) = 0.0		_UpColor("UpColor",color) = (1,0,0,1)		_DownColor("DownColor",color) = (0,1,0,1)		_Center("Center",range(-0.7,0.7)) = 0		_R("R",range(0,0.5)) = 0.2	}	SubShader {		Tags { "RenderType"="Opaque" }		LOD 200				CGPROGRAM		#pragma surface surf Standard vertex:vert fullforwardshadows		//说明：pragma surface method1 Standard vertex:method2	fullforwardshadows				#pragma target 3.0		sampler2D _MainTex;		struct Input {			float2 uv_MainTex;			float x:TEXCOORD0;		};		half _Glossiness;		half _Metallic;		float4 _UpColor;		float4 _DownColor;		float _Center; 		float _R; 		void vert(inout appdata_full v,out Input o){			o.uv_MainTex = v.texcoord.xy;			o.x = v.vertex.x;		}		void surf (Input IN, inout SurfaceOutputStandard o) {			fixed4 c = tex2D (_MainTex, IN.uv_MainTex);			o.Albedo = c.rgb;			o.Metallic = _Metallic;			o.Smoothness = _Glossiness;			o.Alpha = c.a;			float d = IN.x - _Center;//融合带			float s = abs(d);			d = d/s;//正负值分别描述上半部分和下半部分，取值1和-1			float f = s/_R;	//范围>1：表示上下部分;范围<1:表示融合带			f = saturate(f);			d *= f;//表示全部[-1,1];范围>1：表示上部分；范围<1:表示融合带;范围<-1:表示下部分							d = d/2+0.5;//将范围控制到[0,1],因为颜色值返回就是[0,1]			o.Albedo += lerp(_UpColor,_DownColor,d);		}		ENDCG	}	FallBack "Diffuse"}