Xgl 관련 Eyecandy

멋지네요.. :)
적용해보고 싶지만.. 컴퓨터가 안받쳐줄것 같네요..

지금 쓰고 있는 컴퓨터의 그래픽 카드는 GeForce 1 입니다. :(

kimkh0304 wrote:

지금 쓰고 있는 컴퓨터의 그래픽 카드는 GeForce 1 입니다. :(

그런것도 있습니까? Geforce 256은 들어봤어도...

http://www.zdnet.co.kr/news/enterprise/dev/0,39031103,39144280,00.htm

Quote:

다만, Xgl에는 1가지 성가신 문제가 있다. 이 애플리케이션은 양질의 3D대응 그래픽 드라이버 소프트웨어와 조합했을 경우에 최선의 효과를 발휘하지만, 그러한 소프트웨어는 통상 Nvidia나 ATI등의 메이커측이 제공하는 독점인 것이 많다. 오픈 소스 프로그래머 속에는 독점 드라이버 소프트웨어의 이용에 반대하는 사람도 있다. 또 리눅스에는 레드햇의 페도라(Fedora)와 같이 톡점인 드라이버 소프트웨어를 받아 들이지 않는 버전도 많다.

Hi,

As some of you may know, Soeren Sandmann, Kristian Hogsberg, Adam Jackson, and Kevin Martin have been working on getting special effects into the desktop. While all their work is in CVS, it's a little hard to set up, so I thought I'd make packages for people who have wanted to try the stuff but haven't wanted to spend a lot of time recompiling everything.

Note it's still takes some effort to get a workable setup and for a lot
of people things won't work at all.

Testing has been mostly done on radeon 7500 (r100) cards. Other cards probably won't work (but you can still try!).

Steps to test:

1) get the packages from http://people.redhat.com/rstrode/bling
If you point yum to it by creating a repo file in /etc/yum.repos.d, you
should be able to do something like:

yum install mesa-libGL xorg-x11-server-Xair spififity

This will install a specially compiled version of Xorg that supports accelerated indirect rendering which is the key to making the compositing manager have a reasonable frame rate. Eventually these
changes will go into the main Xorg package.

The above yum install command will also install a version of metacity
with its compositing manager code turned on. I called the package
spififity so that we can parallel install it with the non-compositing
manager version of metacity.

2) Configure gdm to use the accelerated indirect compiled version of
Xorg. You can probably do something like:

sed -i -e 's/Xorg/Xair/g' /usr/share/gdm/config/gdm.conf-custom

to make that happen.

3) Configure your X server to not use offscreen pixmaps. Strictly
speaking this step is optional, but it should dramatically increase
performance. You can do that by adding
Option "XAANoOffscreenPixmaps"
to the "Device" section of your /etc/X11/xorg.conf file. Some people
have reported that this option actually breaks things for them, so you
may have to try it with and without.

4) Configure your X server to enable the composite extension. You can do
that by adding

Section "Extensions"
Option "Composite"
EndSection

to your /etc/X11/xorg.conf

5) restart gdm.

6) Log into GNOME, press alt-f2 to get a run dialog to come up and then
type spififity --replace and press enter.

At this point you may see drops shadows, fading menus and wobbly
minimization effects or your system may freeze or one followed by the
other.

If you see drop shadows and a bunch of solid white windows, you probably
aren't running the right X server. Make sure you're running Xair and
not Xorg.

If after using things for a while all your window borders disappear, you
may have better luck by setting the METACITY_SYNC environment variable
to 1 and rerunning spififity. Setting the environment variable incurs a
minor performance hit, but it will also mask a lingering bug in the
compositing manager code.

Things are still quite raw, so expect things to crash, your system to
lock up, effects to be unpolished, etc.

--Ray

luminocity는 Xgl을 사용하는게 아닌걸로 알고있는데요.
제가 돌려봤을 당시에는 Xfake를 X 서버로 사용했었습니다.
http://www.gnome.org/~seth/blog/relations

그렇다고 Xgl이 고급 3D 가속 기능을 필요로하는건 아닙니다 :)
잘해봐야 텍스쳐 알파 블렌딩정도만 지원하면 대부분의 기능을 쓸 수 있지 않을까 생각합니다.

어제 시작된 X Developer Conference」에서 Xgl 리드 프로그래머인 Reveman씨가 Xgl에 관한 프레젠테이션을 했다고 합니다.
그 프리젠테이션 http://www.freedesktop.org/~davidr/xdevconf06/ 13장 짜리인데 내용이 없습니다.-_-
현재 리눅스에서 드라이버 성능이 어느쪽이 더 좋죠? 동시에 지원보다는 일단 한쪽에서 우세가 보일거 같은데