in news:4032de94$1@news.povray.org Zeger Knaepen wrote:

> Then why isn't 1 the default?
> maybe a stupid question, I don't really fully understand that
> gamma-stuff :-/ 
> 

The default is to render to an image with gamma=1 (no gamma correction), 
this means that in the resulting file the value for a 33.333% gray is at 
one-third of the maximum value (white).

If you put in assumeg_gamma = 1 it will render to a gamma as set by the 
Display-Gamma value. The before mentioned 33.333% gray wil now not have a 
value at one-third of the maximum. Yet on your monitor you will see it as 
33.333% grey.


Ingo

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