POV-Ray : Newsgroups : povray.beta-test : Gamma again Server Time
31 Oct 2024 12:17:19 EDT (-0400)
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From: clipka
Subject: Gamma again
Date: 4 Dec 2008 11:15:00
Message: <web.493800e833fdefd1f5dae140@news.povray.org>
(now this newsgroup interface bothers me... typing long texts is a PITA because
when you take too long the interface won't accept your message, and even the
browser's "back" button won't bring it back on screen - so you go typing it all
in again... arrrrrh!)

Just wanted to point out that the current approach is too limited in my opinion.
There should be separate (!) options to gamma-correct (or reverse
gamma-correction) for...

- preview output window (to adjust for the PoV-ray user's display of course, if
necessary)

- image output file (to adjust for the "end viewers'" displays, or
post-processing steps that may expect a certain gamma correction)

- image input file, on a per-image(!) basis (to compensate for input files that
may (or may not!) be gamma-corrected for different viewing conditions)

- color literals, (a) on a scene-global scale and (b) on a per-color basis
(maybe using macros; to compensate for colors "picked" in an image processing
software from gamma-corrected pictures)

Also note that *all* these settings shold allow for *arbitrary* corrections, not
just the choice of either "no gamma correction" or "corrected for a gamma of
2.2".


Yes, I know some people will mis-use it to work around their scene lighting
problems, but what the heck - give them good default values, encourage them to
check & adjust their preview window gamma correction in the global .ini file,
but don't be too inviting about the other settings in the documentation, and it
should be ok I guess.


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From: Trevor G Quayle
Subject: Re: Gamma again
Date: 4 Dec 2008 11:40:00
Message: <web.4938070784dfb9cc81c811d20@news.povray.org>
"clipka" <nomail@nomail> wrote:
> (now this newsgroup interface bothers me... typing long texts is a PITA because
> when you take too long the interface won't accept your message, and even the
> browser's "back" button won't bring it back on screen - so you go typing it all
> in again... arrrrrh!)
>

I have learned this the hard way (many times).  Now I've learned to select all
and copy prior to attaempting to submit.  That way if it fails I can just
respond again and paste the text back in...

-tgq


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From: Thorsten Froehlich
Subject: Re: Gamma again
Date: 4 Dec 2008 14:55:43
Message: <493835bf$1@news.povray.org>
clipka wrote:
> (now this newsgroup interface bothers me... typing long texts is a PITA because
> when you take too long the interface won't accept your message, and even the
> browser's "back" button won't bring it back on screen - so you go typing it all
> in again... arrrrrh!)

The back button works just fine. Make sure you don't have some browser 
settings clearing the data. The site does nothing to clear the contents of 
the message posting form.

BTW, sessions expire after one hour of inactivity. If you don't like that, 
you can always use a newsreader ;-)

	Thorsten


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From: Nicolas Alvarez
Subject: Re: Gamma again
Date: 4 Dec 2008 16:05:25
Message: <49384615@news.povray.org>
Thorsten Froehlich wrote:
> BTW, sessions expire after one hour of inactivity.

...so also make sure your system clock is set right!


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From: Thorsten Froehlich
Subject: Re: Gamma again
Date: 4 Dec 2008 16:26:07
Message: <49384aef$1@news.povray.org>
Nicolas Alvarez wrote:
> Thorsten Froehlich wrote:
>> BTW, sessions expire after one hour of inactivity.
> 
> ...so also make sure your system clock is set right!

Session times are bound to the server clock and checked there. The cookie 
takes even longer to expire (not sure how long from the top of my head).

	Thorsten


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From: clipka
Subject: Re: Gamma again
Date: 4 Dec 2008 17:20:01
Message: <web.4938575a84dfb9ccf5dae140@news.povray.org>
Now come on people - that intro to my message was just to blow off a bit of
steam. Actually I was more interested in that Gamma issue :)


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From: Warp
Subject: Re: Gamma again
Date: 5 Dec 2008 07:02:18
Message: <49391849@news.povray.org>
Trevor G Quayle <Tin### [at] hotmailcom> wrote:
> "clipka" <nomail@nomail> wrote:
> > (now this newsgroup interface bothers me... typing long texts is a PITA because
> > when you take too long the interface won't accept your message, and even the
> > browser's "back" button won't bring it back on screen - so you go typing it all
> > in again... arrrrrh!)

> I have learned this the hard way (many times).  Now I've learned to select all
> and copy prior to attaempting to submit.  That way if it fails I can just
> respond again and paste the text back in...

  How about just using a real newsreader? If you can't think of anything,
just use Thunderbird. It's easy to install and use.

-- 
                                                          - Warp


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From: Stephen
Subject: Re: Gamma again
Date: 5 Dec 2008 07:48:53
Message: <jo8ij4l2b7cnkdc72qe84go4ode2prulp8@4ax.com>
On 5 Dec 2008 07:02:18 -0500, Warp <war### [at] tagpovrayorg> wrote:

>
>  How about just using a real newsreader? If you can't think of anything,
>just use Thunderbird. It's easy to install and use.

Not everyone can use a newsreader at work on a locked down company machine. 
To overcome the newsgroup interface timing out I write my reply in word then go
through the process of "posting a reply".
-- 

Regards
     Stephen


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From: Trevor G Quayle
Subject: Re: Gamma again
Date: 5 Dec 2008 08:55:00
Message: <web.4939319d84dfb9cc81c811d20@news.povray.org>
Stephen <mcavoysAT@aolDOTcom> wrote:
> On 5 Dec 2008 07:02:18 -0500, Warp <war### [at] tagpovrayorg> wrote:
>
> >
> >  How about just using a real newsreader? If you can't think of anything,
> >just use Thunderbird. It's easy to install and use.
>
> Not everyone can use a newsreader at work on a locked down company machine.
> To overcome the newsgroup interface timing out I write my reply in word then go
> through the process of "posting a reply".
> --
>
> Regards
>      Stephen

Yes, I can't access news servers from work so I just use this interface and, by
extension, I use it at home too rather than setting up a newsreader.

-tgq


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From: Stephen
Subject: Re: Gamma again
Date: 5 Dec 2008 09:10:51
Message: <4idij4930gh2cnactorc85hv2a9g3e6aqk@4ax.com>
On Fri,  5 Dec 2008 08:50:21 EST, "Trevor G Quayle" <Tin### [at] hotmailcom>
wrote:

>
>Yes, I can't access news servers from work so I just use this interface and, by
>extension, I use it at home too rather than setting up a newsreader.

I use a newsreader at home so that if I'm offline I can check for answers to
things that have been answered before. Almost as good as TFM :)
-- 

Regards
     Stephen


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