Why my simple shader doesn't get vertex Color?

Hi there, sorry for the noob question but I've create a simple surface shader and put a texture and a normal map for it but can't add vertex Color to it! I want to change the main color but just don't know how.

Here is my code

Code (CSharp):

1. Shader "My_Shaders/FirstShader" {
2.  
3. Properties {
4.    _Color ("Main Color", Color) = (1,1,1,0.5)
5.    _MainTex ("Texture", 2D) = "white" {}
6.    _BumpMap ("Bumpmap", 2D) = "bump" {}
7. }
8.  
9.  
10. Subshader {
11. Tags { "RenderType" = "Opaque" }
12.  
13.     CGPROGRAM
14.      #pragma surface surf Lambert
15.  
16.     struct Input {
17.  
18.      float4 color : COLOR;
19.      float2 uv_MainTex;
20.      float2 uv_BumpMap;
21.  
22.     };
23.  
24.  
25.     sampler2D _MainTex;
26.     sampler2D _BumpMap;
27.        
28. void surf (Input IN, inout SurfaceOutput o) {
29.      
30.          o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb;
31.          o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
32.         // What should I add here to get it to work ?
33.     }
34.     ENDCG
35.  
36.  
37.     }
38.  
39.  
40.       Fallback "Diffuse"
41.  
42. }
43.  
44.  

 

http://forum.unity3d.com/threads/getting-vertex-color-data-in-surface-shaders.70578/#post-587522

 

Thanks but I've seen that thread but still can't get it to work

 

Line 18 is where you declare the vertex color. Now you certainly need to use it!

Line 30 may e.g. be replace with something like this:

Code (csharp):

1. o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb * IN.color.rgb;

 

Still can't change the Main Color

 

Warning: Untested

Code (csharp):

1. Shader "My_Shaders/FirstShader" {
2.    Properties {
3.      _Color ("Main Color", Color) = (1,1,1,0.5) // Tint
4.      _MainTex ("Texture", 2D) = "white" {}
5.      _BumpMap ("Bumpmap", 2D) = "bump" {}
6.    }
7.  
8.    Subshader {
9.      Tags { "RenderType" = "Opaque" }
10.  
11.      CGPROGRAM
12.      #pragma surface surf Lambert
13.  
14.      struct Input {
15.        float4 color : COLOR; // Vertex Color
16.        float2 uv_MainTex;
17.        float2 uv_BumpMap;
18.      };
19.  
20.      float4 _Color; // Tint
21.      sampler2D _MainTex;
22.      sampler2D _BumpMap;
23.  
24.      void surf (Input IN, inout SurfaceOutput o) {
25.        o.Albedo = tex2D (_MainTex, IN.uv_MainTex).rgb * IN.color.rgb * _Color; // Texture * Vertex Color * Tint
26.        o.Normal = UnpackNormal (tex2D (_BumpMap, IN.uv_BumpMap));
27.      }
28.      ENDCG
29.  
30.    }
31.    Fallback "Diffuse"
32. }

 

Great, Worked
Thanks a lot
Thanks a lot