Warp wrote:

> You should try putting "global_settings { assumed_gamma 1 }" in your scene.
> I had once the same problem of an image map looking a lot different
> in POV-Ray than it looked when viewed separately with an image viewer,
> and the problem was the default assumed_gamma.
> (IMHO the default assumed_gamma should be 1, not 2.2 (or whatever it is).
> I don't understand why it's 2.2.)


If I understand correctly, when I create an image with { assumed_gamma 1 }
on my Mac (display's gamma 1.8), and someone runs the same code on their
PC (display's gamma 2.2), they would generate a brighter image that would
look the same on their monitor as my image looked on my monitor. This
is good, but they may wonder why the image they generate is brighter
than the one I created.

The manual mentions that display_gamma is ignored if you don't specify
the assumed_gamma, so I guess there would be a change if you add
{ assumed_gamma 1 } even if the default was 1? For some reason it's
difficult for me to hold the meaning of POV-Ray's gamma settings in
my head, so correct me if I'm confused...

When I created an image for the IRTC on my Mac, I had to keep in mind
that most people would be viewing the image on a PC, and it would look
darker than what I was seeing.

-Mark Slone

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