Vertex Color with fade effect

Hi Guys

I am not sure if this is even possible, but is there a way to use a pure Vertex Color shader but have the ability to "Fade" the object (or change its transparency). I can't find a way to have the alpha set to say 0.5 to have the object semi transparent.

Please note I have no shader development skill and have tried merging lots of different solutions on the forum with this but cannot get it to work. Either the object completely disappears or it just doesn't change.

Thanks in advance for any help

The shader I am using for my vertex colour shader is the one from codeanimo website (This seems to work great for what I want but just no alpha capability)

Code (CSharp):

1.     Properties{
2.         _MainTex("Base (Lightmapping Only)", 2D) = "white" {}// If this doesn't exist, Beast Lightmapper will complain
3.     }
4.  
5.     SubShader{
6.         LOD 100
7.         Pass {
8.             Tags { "LightMode" = "Vertex" }
9.            
10.             ColorMaterial AmbientAndDiffuse
11.             Lighting On
12.             SeparateSpecular On
13.            
14.             SetTexture [_MainTex] {
15.                 combine primary + primary DOUBLE
16.             }
17.         }
18.        
19.         // Lightmapped, encoded as dLDR
20.         Pass {
21.             Tags { "LightMode" = "VertexLM" }
22.            
23.             BindChannels {
24.                 Bind "Vertex", vertex
25.                 Bind "normal", normal
26.                 Bind "texcoord1", texcoord0 // lightmap uses 2nd uv
27.                 Bind "texcoord", texcoord1 // main uses 1st uv
28.             }
29.            
30.             SetTexture [unity_Lightmap] {
31.                 matrix [unity_LightmapMatrix]
32.                 combine texture
33.             }
34.             SetTexture [_MainTex] {
35.                 combine primary + previous DOUBLE, primary
36.             }
37.         }
38.        
39.         // Lightmapped, encoded as RGBM
40.         Pass {
41.             Tags { "LightMode" = "VertexLMRGBM" }
42.            
43.             BindChannels {
44.                 Bind "Vertex", vertex
45.                 Bind "normal", normal
46.                 Bind "texcoord1", texcoord0 // lightmap uses 2nd uv
47.                 Bind "texcoord1", texcoord1 // unused
48.                 Bind "texcoord", texcoord2 // main uses 1st uv
49.             }
50.            
51.             SetTexture [unity_Lightmap] {
52.                 matrix [unity_LightmapMatrix]
53.                 combine texture * texture alpha DOUBLE
54.             }
55.             SetTexture [_MainTex] {
56.                 combine previous QUAD, primary
57.             }
58.         }
59.        
60.     }

 

Your missing the blend mode. http://docs.unity3d.com/Manual/SL-Blend.html