Well if I found the correct thread that you imply, it seems unconclusive, I simply dont understand where the code here & there are meant to go, how to use them. I struggle enough when I see a complete shader and have had mixed results applying them... certainly couldnt write one......

I guess these shader things are just out of my depth and I am sure most other people here maybe just look at the code you example, and know how to use it, unfortunatly I am not among those people

Thanks for your help anyway