I don't think those kinds of shaders should be added to jME. Instead they should be possibly maintained in a user "shader repository", either here or on a generic GLSL site, unless they are advanced shaders like shadow mapping or depth of field that require heavy client-side code.
It's an idea and I agree. The shader is too simple to be integrated.
But that is why I added it here, and not in the Contribution Depot. 
Maybe a single page on the Wiki can be dedicated as a "repository" for these kinds of shaders.
Maybe we could also extend this.
Make a forum with several subforums to store all the extra stuff needed when using an 3D Engine;
- Shaders
- Particle Effect Presets (Explosions etc)
- ? - Textures
- ? - Sound
- ? - Models
That way we can keep all the more sophisticated stuff in this forum, the User Code.
very good!
I found the vert/frag codes in a example from "ShaderDesigner"…
I can't get this to work. I just wanted to see it on my own computer as a test, and it makes the model look x-ray ish but it has no color and you can't see through it. Any idea what's up?
Hm, a shader subforum, sounds kinda usefull