Relective alpha-cutout

Hi Unity folk,

Does anyone know if there is reflective alpha-cutout shader somewhere available?
I need to do growing puddles with reflective cube maps. I was thinking using the alpha cutout for this effect.
Sadly I personally have little experience with shaders.

Thanks,
- J

 

Not tested, but here's a combination of Cutout/Diffuse and Reflect/Diffuse:

Code (csharp):

1.  
2. Shader "Transparent/Cutout/Reflective" {
3. Properties {
4.    _Color ("Main Color", Color) = (1,1,1,1)
5.    _ReflectColor ("Reflection Color", Color) = (1,1,1,0.5)
6.    _MainTex ("Base (RGB) Trans (A)", 2D) = "white" {}
7.    _Cutoff ("Alpha cutoff", Range(0,1)) = 0.5
8.    _Cube ("Reflection Cubemap", Cube) = "_Skybox" { TexGen CubeReflect }
9. }
10.  
11. SubShader {
12.    Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}
13.    LOD 200
14.    
15. CGPROGRAM
16. #pragma surface surf Lambert alphatest:_Cutoff
17.  
18. sampler2D _MainTex;
19. samplerCUBE _Cube;
20.  
21. fixed4 _Color;
22. fixed4 _ReflectColor;
23.  
24. struct Input {
25.    float2 uv_MainTex;
26.    float3 worldRefl;
27. };
28.  
29. void surf (Input IN, inout SurfaceOutput o) {
30.    fixed4 tex = tex2D(_MainTex, IN.uv_MainTex);
31.    fixed4 c = tex * _Color;
32.    o.Albedo = c.rgb;
33.    o.Alpha = c.a;
34.    fixed4 reflcol = texCUBE (_Cube, IN.worldRefl);
35.    reflcol *= tex.a;
36.    o.Emission = reflcol.rgb * _ReflectColor.rgb;
37. }
38. ENDCG
39. }
40.  
41. Fallback "Transparent/Cutout/VertexLit"
42. }
43.  

 

Wow! Thank you so much jvo3dc!

It works and it looks gorgeous when I animate the alpha cutout with my baked enviroment map.
This community is a ultimate win! : )