Access Particular Shader Texture through code

I am trying to access a shader texture from code, particularly Texture Sample 1 from the attached image. This is a simple code for accessing/setting shader textures:

GetComponent<Renderer> ().material.SetTexture ("_MainTex", RenderCamera.targetTexture);

I was wondering how I can do the same for Texture Sample 1. And the shader is named as ColoringCharacter. Thanks.

 

It's impossible to know from the screenshot. You'd need to look a the shader source and see which property has the descriptive text of "Texture Sample 1". If you open up the shader you should see a Properties block with _MainTex ("Sprite Texture", 2D) = "white" {} or something similar. Directly below that will likely be the "Texture Sample 1", look at the variable name to the left (like where _MainTex is) to know what to set from script.

 

Thanks a lot. I was able to find the shader property with the description.