Question Shader to display Texture to CustomRenderTexture on RawImage

Hi,

I'm attempting to write a (theoretically) simple shader for a CustomRenderTexture. I'd like to render an inputted Texture as-is onto a RawImage. My CustomRenderTexture with this shader is attached to a RawImage component on my UI GameObject. But nothing is being rendered to the RawImage.

Does anyone have any experience with CustomRenderTexture shaders? Any tips or advice would be greatly appreciated. Thank you!

Code (Csharp):

1. Shader "Custom/DrawTexture"
2. {
3.     Properties {
4.         _SnapshotTex ("Snapshot Texture", 2D) = "white" {}
5.     }
6.  
7.     SubShader {
8.  
9.         Lighting Off
10.         Blend One Zero
11.  
12.         Pass {
13.  
14.             CGPROGRAM
15.  
16.             #include "UnityCustomRenderTexture.cginc"
17.             #pragma vertex CustomRenderTextureVertexShader
18.             #pragma fragment frag
19.  
20.             sampler2D _SnapshotTex;
21.  
22.             float4 frag (v2f_customrendertexture inputFrag) : COLOR
23.             {
24.                 return tex2D(_SnapshotTex, inputFrag.globalTexcoord.xy);
25.             }
26.  
27.             ENDCG
28.         }
29.     }
30. }
31.