Shader "Sbin/vf48" {	Properties	{		_MainColor("MainColor",color) = (1,1,1)		_SpecalarColor("SpecularColor",color) = (1,1,1)		_Shininess("Shininess",Range(1,94)) = 8	}	SubShader {	   		pass{			Tags{"LightMode" = "ForwardBase"}			CGPROGRAM			#pragma vertex vert			#pragma fragment frag			#include "UnityCG.cginc"			#include "Lighting.cginc"			struct v2f{				float4 pos : POSITION;				float3 normal:NORMAL;				float4 vertex:COLOR;			};			float4 _MainColor;			float4 _SpecalarColor;			float _Shininess; 			v2f vert(appdata_base v){				v2f o;				o.pos = mul(UNITY_MATRIX_MVP,v.vertex);								o.normal = v.normal;				o.vertex = v.vertex;				return o;			}						fixed4 frag(v2f v):COLOR			{				//Ambient Color 环境光				float4 col = UNITY_LIGHTMODEL_AMBIENT;				float3 N = UnityObjectToWorldNormal(v.normal);				float3 L = normalize(WorldSpaceLightDir(v.vertex));				float3 V = normalize(WorldSpaceViewDir(v.vertex));							//deffuse Color 漫反射				float ndot = saturate(dot(N,L));//saturate把点积的结果限定在[0-1]				col += _LightColor0*_MainColor * ndot;				//Specular Color镜面高光				float3 R = 2*dot(N,L)*N-L;				R = normalize(R);				//dot：向量点积				float specularScale = pow(saturate(dot(R,V)),_Shininess);//pow：数的n次幂				col += _SpecalarColor * specularScale;				//点光源				float3 wpos = mul(_Object2World,v.vertex).xyz;				col.rgb += Shade4PointLights(unity_4LightPosX0,unity_4LightPosY0,unity_4LightPosZ0							,unity_LightColor[0].rgb,unity_LightColor[1].rgb,unity_LightColor[2].rgb,unity_LightColor[3].rgb,							unity_4LightAtten0,wpos,N);				return col;			}			ENDCG		}	} }