466acaff$1@news.povray.org...
> To answer to Marc.
> I am design a panel unit with 7 switch/ key. custormer will at when the 
> key is activ, the key ligthing.
> I have place 2 light source ( LED ) between the switch and want desing a 
> knopp to active the switch and guide the light of LED to the top.
> I will try differente form of knopp to have the best light on the top.
>
> I have read the manuel with ligth source, try som but have not some 
> result.
> I am not a prof with povray, I am using Povray with the CAD software eagle 
> to show som 3D pictures of my board.
> I will try all tips you write.
>
>
I think you won't get accurate simulation of that guide.
Usually it is try and error process to get what we want.
But maybe you could try a pigment with filter 1
like :

pigment {color rgb 1 filter 1}

or shorter
pigment {color rgbf 1}

It is hard to give code without knowing exactly what you want :-)

Marc

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