Unity shader 单一贴图

    Shader "Unlit/texuture_s"
    {
    	Properties
    	{
    		_Color ("Color Tint", Color) =(1,1,1,1)
    		_Specular("Specular", Color)=(1,1,1,1)
    		_Gloss("Gloss",Range(8.0,256)) =20
    		_MainTex("Main Tex", 2D) ="white"{}
    
    	}
    		SubShader
    	{
    		Pass
    		{
    			Tags{"LightMode" = "ForwardBase"}
    			CGPROGRAM
    			#pragma vertex vert
    			#pragma fragment frag
    
    			#include "Lighting.cginc"
    
    			fixed4 _Color;
    			sampler2D _MainTex;