Re: Optical and OS interaction
Re: Optical and OS interaction
- Subject: Re: Optical and OS interaction
- From: email@hidden
- Date: Fri, 28 Mar 2003 08:55:17 EST
In a message dated 3/28/03 7:36:52 AM, email@hidden writes:
>
Optical generates a monitor profile and this profile gets stored in the
>
"correct" folder in Win 2k or XP. Once that profile is stored, what
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role does Optical play in the operating system?
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It loads the video card corrections to the card at startup, since Windows
doesn't do this.
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I see that the screen
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changes color when Optical loads during bootup, but doesn't the OS
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handle the screen color adjustment using the profile?
>
Applying the video card LUTs, and using the profile are seperate items, which
are used together for a common goal.
>
Does Optical have
>
any actual function during routine operations aside from generating the
>
profile?
>
If by "generating the profile" you mean the entire process of adjusting,
calibrating, and profiling the monitor, saving the profile (with the contined
LUTs) to the correct place, and setting this profile for use, then no, it has
no other function, except loading the video card LUTs at startup.
>
Colorvision says that Optical "activates the profile" but
>
won't or couldn't explain what that meant.
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Activates the video card LUTs stored in the profile. The profile definition
is used, or not, by specific applications. On Windows, those applications
unfortunately don't included browsers.
>
>
Colorvision also said that with Macs that Optical was not actually
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active other than while generating the profile.
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Correct, since on the Mac, the video card LUTS are loaded automatically by
the OS.
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Macs (at least under OS
>
9) use Colorsync to adjust the monitor using the Optical-generated
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custom monitor profile.
>
Well, the OS (cal it ColorSynco if you like) loads the LUTs... the
applications still need to use the profile description. Even under OS X not
all applications use the profile, but the hooks are available at least.
>
I understand this, but shouldn't that be the
>
same with PC's running 2k or XP?
>
Ask Bill Gates; MicroSoft has not seen fit to offer autoloading of video card
LUTs, for one reason or another.
C. David Tobie
Design Cooperative
email@hidden
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