Work on SpriteRender but doesn't work on UGUI

Code (CSharp):

1. Shader "Custom/MaskedTexture"
2. {
3.     Properties
4.     {
5.         _MainColor("Main Color", Color) = (1,1,1,1)
6.         _MainTex("Base (RGB)", 2D) = "white" {}
7.     _BackTexture("Back Texture", 2D) = "white" {}
8.     _Mask("Mask To Dissolve", 2D) = "white" {}
9.     _LineTexture("Line Texture", 2D) = "white" {}
10.     _Range("Range", Range(0,3)) = 0
11.         _LineSize("LineSize", Float) = 0.001
12.         _Color("Line Color", Color) = (1,1,1,1)
13.         _BumpMap("Normalmap", 2D) = "bump" {}
14.     }
15.  
16.         SubShader
17.     {
18.         LOD 300
19.         ZWrite On
20.         Cull Off
21.  
22.         CGPROGRAM
23. #pragma target 2.0
24. #include "UnityCG.cginc"
25. #pragma surface surf Lambert
26.  
27.         sampler2D _MainTex;
28.     sampler2D _LineTexture;
29.     sampler2D _BumpMap;
30.     sampler2D _Mask;
31.     sampler2D _BackTexture;
32.     half4 _Color;
33.     half4 _MainColor;
34.     float _Range;
35.     float _LineSize;
36.  
37.     struct Input
38.     {
39.         float2 uv_MainTex;
40.         float2 uv_BumpMap;
41.         float2 uv_Detail;
42.     };
43.  
44.     void surf(Input IN, inout SurfaceOutput o)
45.     {
46.         half4 c = tex2D(_MainTex, IN.uv_MainTex);
47.         half4 m = tex2D(_Mask, IN.uv_MainTex);
48.         half4 lc = tex2D(_Mask, IN.uv_MainTex - _LineSize);
49.         half4 lc2 = tex2D(_Mask, IN.uv_MainTex + _LineSize);
50.         half4 lc3 = tex2D(_LineTexture, IN.uv_MainTex + _SinTime) * _Color;
51.         half4 bc = tex2D(_BackTexture, IN.uv_MainTex);
52.         o.Albedo = c *  _MainColor;
53.         o.Normal = UnpackNormal(tex2D(_BumpMap, IN.uv_BumpMap));
54.  
55.         float factor = m.rgb.x + m.rgb.y + m.rgb.z;
56.         if (factor >= _Range)
57.         {
58.             float factor2 = lc.rgb.x + lc.rgb.y + lc.rgb.z;
59.             float factor3 = lc2.rgb.x + lc2.rgb.y + lc2.rgb.z;
60.             if (factor2 < _Range || factor3 < _Range)
61.             {
62.                 o.Albedo = lc3;
63.             }
64.             else
65.             {
66.                 o.Albedo = bc;
67.                 o.Normal = float3(1,1,1);
68.             }
69.         }
70.     }
71.     ENDCG
72.     }
73.         //Fallback "UI/Default"
74.         //Fallback "Sprites/Default"
75.         Fallback "Diffuse"
76. }

i find a reference that work as i wish, it mask with b&w texture;
it work100% on spriterenderer, and 50% on RawImage,
it show complete black screen with rawimage, but i can see that in the scene,

can someone help me plz? ty