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Re: [News] Leopard, Vista and Linux Eye Candy Compared - Linux Wins

"Roy Schestowitz" <newsgroups@xxxxxxxxxxxxxxx> wrote in message
news:1708216.SumrTI9oFK@xxxxxxxxxxxxxxxxxx
> Videos here:
>
> http://www.ehomeupgrade.com/entry/2915/linux_xglcompiz_graphics

Poor comparison.  Go to Microsofts Vista web site and watch what the new API
can do.

Basically you an map any window onto any 3d mesh in real time and animate
the mesh in real time.

Is this a good thing?  Not really, it's pretty irrelevant.

I am <NOT> shocked that there are such a limited number of useful 3d viewing
renditions available in 3d environments.  The most popular are the project
on a cylinder as if viewing from the inside, and as if viewing from the
outside.

Whoop de doo....

3d will add little if no real benefit to the desktop, but it will will make
the desktop look slicker, somewhat more fun, and the cost will be
essentially nothing (for the animation) because of the accelerated video.
However, there is a whole new layer of inefficency added due to the
complexity of hit testing in such environments, as well as difficulties in
masking etc.  Hit testing in a 3d environment for example may use and does
use in the case of vista, ray casting to figure out what object you are
clicking on.

Undoubtedly Linux is doing much the same thing.

Very nasty.....

It would make more sense to use the Z-Buffer on video cards to improve the
efficiency with which the current GUI clips objects and writes to the
screen.  This can be accomplished by assigning to each window a separate
video plane and then using a pixel test routine to read back the zbuffer
value to do hit testing.



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