Christian Froeschlin <chr### [at] chrfrde> wrote:
> Stephen Klebs wrote:

>
> > Now what do I get? Not a straight, smooth, gradual gradient from
> > light to dark but a parabolic curve of values from light to slightly
> > darker but still light to abruptly skewed to black.
>
> I have to admit I don't understand this either. Until now I
> thought that since 3.7 now uses a linear color space, 0.5 would
> represent a true midgray and all the nifty gamma handling ensures
> that everyone perceives that midgray on their display when viewing
> the image file. So I'd also have expected the end result of your
> test scene to visually yield evenly spaced brightness steps.

I too had assumed the same thing. (But I haven't yet tried out the relevant 3.7
beta and its gamma change, so I don't want to say too much more, because my
assumption could be wrong.) Yet Stephen's result does seem unexpected (that is,
based on my experience with v3.6.1 using assumed_gamma 2.2, not 1.0--I *thought*
the new 3.7 change was meant to match that, at least when viewing POV-Ray's
preview image.)
>
> [clip] I too perceive the
> upper two rows as more visually correct.

Same here (viewing it on my CRT monitor, BTW.)

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