Shade Exaple1

Shader "Custom/Diffuse Texture" {
  Properties {
      _MainTex ("Base (RGB)", 2D) = "white" {}
  }
  SubShader {
      Tags { "RenderType"="Opaque" }
      LOD 

      CGPROGRAM
      #pragma surface surf Lambert

      sampler2D _MainTex;

      struct Input {
          float2 uv_MainTex;
      };

      void surf (Input IN, inout SurfaceOutput o) {
          half4 c = tex2D (_MainTex, IN.uv_MainTex);
          o.Albedo = c.rgb;
          o.Alpha = c.a;
      }
      ENDCG
  }
  FallBack "Diffuse"
}