make shader unlit

Unity Engine
1

Hi there,

Firstly Im really not familiar with shaders. Up until now I have only been using existing shaders so what I want to ask may be impossible.

I want to change a shader I found online to be unlit. I had a go by add lighting off but this made no difference. Can anyone help?

Thank you

  Shader "mShaders/Holes1" {
    Properties {
      _MainTex ("Texture (RGB)", 2D) = "white" {}
      _SliceGuide ("Slice Guide (RGB)", 2D) = "white" {}
      _SliceAmount ("Slice Amount", Range(0.0, 1.0)) = 0.9
    }
    SubShader {
      Tags { "RenderType" = "Opaque" }
      Cull Off
      CGPROGRAM
      //if you're not planning on using shadows, remove "addshadow" for better performance
      #pragma surface surf Lambert
      struct Input {
                   
          float2 uv_MainTex;
          float2 uv_SliceGuide;
          float _SliceAmount;
      };
      sampler2D _MainTex;
      sampler2D _SliceGuide;
      float _SliceAmount;
      void surf (Input IN, inout SurfaceOutput o) {
          clip(tex2D (_SliceGuide, IN.uv_SliceGuide).rgb - _SliceAmount);
          o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
      }
      ENDCG
    }
    Fallback "Diffuse"
  }

SOURCE: Painting holes with shader v1.0 « Unity Coding – Unity3D

2 
  Shader "mShaders/HolesUnlit" {
    Properties {
      _MainTex ("Texture (RGB)", 2D) = "white" {}
      _SliceGuide ("Slice Guide (RGB)", 2D) = "white" {}
      _SliceAmount ("Slice Amount", Range(0.0, 1.0)) = 0.9
    }
    SubShader {
      Tags { "RenderType" = "Opaque" }
      Cull Off
      CGPROGRAM
      //if you're not planning on using shadows, remove "addshadow" for better performance
      #pragma surface surf Lambert
      struct Input {
                 
          float2 uv_MainTex;
          float2 uv_SliceGuide;
          float _SliceAmount;
      };
      sampler2D _MainTex;
      sampler2D _SliceGuide;
      float _SliceAmount;
      void surf (Input IN, inout SurfaceOutput o) {
          clip(tex2D (_SliceGuide, IN.uv_SliceGuide).rgb - _SliceAmount);
          o.Emission = tex2D (_MainTex, IN.uv_MainTex).rgb;
      }
      ENDCG
    }
    Fallback "Diffuse"
  }
3

If you don’t need lighting, you’re probably much better off avoiding surface shaders. Their primary purpose is to make it easy to support Unity’s increasingly-complex lighting pipeline.

For unlit shaders, a vertex/fragment shader will be more efficient and flexible. This template is a good start: http://wiki.unity3d.com/index.php/Vertex/Fragment_Template

4

Daniel is right - I supposed you might need shadows for some reason, if not, the template he pointed is a very good start for making Cg shaders.

5

thanks everyone

6

Right: shadow casting support can be added with Fallback “VertexLit” at the end of the Shader block.