Color fill a texture

Can someone teach me how I'd modify this mobile transparent unlit shader so that it fills the texture area with a single solid color, while retaining the alpha channel as a mask? I know some basics of ShaderLab but not how to replace the texture entirely with a color (instead of tinting the texture). Seems easy though.

Code (csharp):

1. Shader "Mobile/Unlit/Transparent" {
2.  
3.     Properties {
4.         _Color ("Main Color (A=Opacity)", Color) = (1,1,1,1)
5.         _MainTex ("Base (A=Opacity)", 2D) = ""
6.     }
7.  
8.     Category {
9.         Tags {"Queue"="Transparent" "IgnoreProjector"="True"}
10.         ZWrite Off
11.         Blend SrcAlpha OneMinusSrcAlpha
12.  
13.         SubShader {Pass {
14.             GLSLPROGRAM
15.             varying mediump vec2 uv;
16.  
17.             #ifdef VERTEX
18.             uniform mediump vec4 _MainTex_ST;
19.             void main() {
20.                 gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
21.                 uv = gl_MultiTexCoord0.xy * _MainTex_ST.xy + _MainTex_ST.zw;   
22.             }
23.             #endif
24.  
25.             #ifdef FRAGMENT
26.             uniform lowp sampler2D _MainTex;
27.             uniform lowp vec4 _Color;
28.             void main() {  
29.                 gl_FragColor = texture2D(_MainTex, uv) * _Color;   
30.             }
31.             #endif      
32.             ENDGLSL
33.         }}
34.  
35.         SubShader {Pass {
36.             SetTexture[_MainTex] {Combine texture * constant ConstantColor[_Color]}
37.         }}
38.     }
39. }

 

Ah, I figured this would be easy. Maybe not so much…?

 

Tried it. Threw a couple of errors:

Shader warning in 'Mobile/Unlit/Transparent Color Fill': No subshaders can run on this graphics card
Shader error in 'Mobile/Unlit/Transparent': GLSL Error in Fragment Shader: ERROR: 0:59: 'c' : syntax error syntax error
at line 0

 

Cool, it's working nicely! Thanks, meh...

No, no, I really am thankful… I'm not shrugging as I say that but… meh.