Gilles Tran <gil### [at] agroparistechfr> wrote:
> In addition to Thorsten's links, here's an explanation about how it's done 
> in Mental Ray :
>
http://toi.bk.tudelft.nl/toi-pedia/index.php?title=Rendering_Mental_Ray:_Tone_mapping

  Am I understanding correctly that "tone mapping" is nothing else than
a function which takes one parameter, namely a brightness value (eg. of a
color channel), and returns a brigthness value (usually the input value
multiplied by some function)?

  Could it also be a function taking three parameters, namely the red,
green and blue components of the color, and returning a vector?

-- 
                                                          - Warp

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