Thanks for the help.
My macbook pro, i bought last year does only support glgs 1.2
AMD Radeon HD 6750M
So i edided you shades.
I never wrote shader in my life, but i got something working.
I also made a litte helpfile.
Its all in the zip file attached.
some of the shaders have problems with the "gain_t" parameter.
all the best,
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