Ive <ive### [at] lilysoftorg> wrote:
> The interesting and surprising thing is: I do even get more vibrant
> colors and a better preservation of subtle texture details when
> rendering within Adobe-RGB and converting the final image to sRGB (by
> using ICC profiles) compared to defining the colors already within sRGB
> and rendering within sRGB. This was something that I did not expect and
> after having rechecked my color management pipeline I think that indeed
> the diffuse radiosity bounces do produce more vibrant and maybe more
> realistic results within the wider gamut.

Hmmmm, does this mean that if one pushes the working color space to the limit
(say, using 700, 520, and 380 nm on the outer edge of the chromaticity diagram),
and then converts back to sRGB, one can get an even richer image in sRGB?

One issue with a restricted gamut is objects with an almost-but-not-quite
saturated pigment (which is essentially what you get in real life).  An object
that is near-saturated green reflects a tiny bit of red and blue, and my
practice has been to include this in the pigment. With a restricted gamut, the
object will appear just right without the red and blue, but as your experience
seems to indicate, this will lead to unrealistic results with multiple
reflections.  (It would also lead to rather unconvincing metallic highlights,
except that metals are never saturated enough to breach the sRGB gamut.)

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