Adding a texture to a custom shader

Hi,

I am simply trying to add a texture to a sphere that only shows when viewed through another shader that is viewed.

When I add the image to the texture box, it only shows white on the sphere and not the image but the rendering works as intended.

Code (CSharp):

1. Shader "Custom/2"
2. {
3.     Properties
4.     {
5.          _MainTex ("Texture", 2D) = "bump" {}
6.         [Enum(Equal,3,NotEqual,6)] _StencilTest ("Stencil Test", int) = 6
7.     }
8.     SubShader
9.     {
10.         //_MainTex;
11.         Stencil
12.         {
13.             Ref 1
14.             Comp [_StencilTest]
15.         }
16.         Pass
17.         {
18.          
19.         }
20.     }
21. }
22.  

 

https://docs.unity3d.com/Manual/SL-VertexFragmentShaderExamples.html