In article <3357667.43WuSxtlum@xxxxxxxxxxxxxxx>, Roy Schestowitz wrote:
> What about /this/, Nessuno?
>
> ,----[ Quote ]
>| In the current implementation (as of 2005-09-22) of the OpenGL
>| graphics library in Windows Vista - a soon to be released new version of
>| the Microsoft Windows operating system, OpenGL is not a stand alonelibrary.
>| Instead it functions as a wrapper around DirectX, and is frozen to the
>| vanilla version of OpenGL 1.4.
That's just the default implementation, and that's how it has worked from
Windows 95 onward. But who uses the default implementation? The video card
vendor will provide an ICD that provides later versions of OpenGL, and
provides vendor-specific acceleration:
Also, according to a Microsoft Blog, there are two OpenGL paths
under Vista. An application can use the default implementation, frozen
at OpenGL version 1.4. An application can use an ICD as well, which
comes in two flavors: legacy and Vista-compatible. A legacy ICD
functions as specified above: the activation of one will turn off the
desktop compositor. A Vista-compatible ICD, made by IHVs using a new
internal API path provided by Microsoft, will be completely compatible
with the desktop compositor. Given the statements made by the two
primary OpenGL ICD vendors (ATi and nVidia), it would be reasonable to
expect both to provide full Vista-compatible ICDs for Windows Vista.
--
--Tim Smith
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