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Preview of X Windows Eye Candy
glenkim writes "Remember Seth Nickell's blog entry about next generation X Window rendering? Well, in case you were wondering what it would look like, he's updated his blog with videos of luminocity, the experimental GNOME window manager, and screenshots of programatically themed widgets." From the post: "The wobbly window effect is mildly addictive. Kristian hasn't gotten much work done since he wrote it. He (and now I) spends all day moving windows around and watching them settle."
Mirror of the Theora videos
Linking to "X Window Eye Candy" Videos on the ./ Frontpage...that's like posting free porn.
You people are crazy. That poor server...
Yesterday I have tried Xgl, Which also uses OpenGL to draw X. I think Luminocity and xgl are tightly related, but I am not really shure.
:-)
Anyway, what I got was a stable desktop with nice shadow and transparency features. It looks totally cool to have a transparent mplayer behind a transparent xterm that drops a soft shadow on it
Trying it out is fairly easy, just follow this description.
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he should create a video showing this wobbling effect used decently, rather than exaggerated. I'm inclined to believe him when he says that this movement is pleasant to the eye (actually, the sudden appearance of menus and windows seems to irritate new users whose brain is not used to this).
The translucency is done very very well. As mentioned before, this is the first video showing how translucency can be useful.
One might argue that this is an utter waste of resources. Well, in this is not true. Since most PCs sold after 2003 do have some sort of 3d accelerator included (hell, even the intel graphics chipsets have acceleration!), basic 3D acceleration is very cheap. Of course, there are people exaggerating the usage of 3d acceleration for the desktop. For example, there are rumors saying that Longhorn requires pixel shader support. But the consumer-level technology for basic T&L (hell, even the CPU can do this, since we aren't talking about >50k vertices) and some basic texturing without lighting or any nifty multitexturing has been around for almost a DECADE.
This sig does not contain any SCO code.
No it's not. From X manpage:
Combine it with the new Enlightenment stuff:
This one
This one
This one
This one
So who said that Linux was mainly textbased?
Don't fight for your country, if your country does not fight for you.
A second pre-emptive comment:
1) It's a tech demo. Nobody is suggesting wobbly windows are going to improve productivity. Given a wide range of possible effects like this, however, creative people can come up with nice ideas to make your desktop more usable. Decoupling the screen display and window contents rendering allows all sorts of cool things.
2) It runs on old crappy hardware, so no, you won't need to go and buy an Nvidia 69999FX-eXtreme to run it
3) It's not 'bloat' (whatever that is), it's just using the hardware and X-server abilities to their full. By shifting much of the rendering to the graphics card, you could actually lower CPU usage. I'm sure a thousand openbox/console/ion/ratpoison users are waiting to post "I don't need this". To which I say "well go back to your teletype then".
While a lot of Slashdotters and other geeks find a lot of pleasure in eye-candy without regard to usability, I think it's refreshing that Seth actually did post some examples of techniques used where they had an intuitively obvious improvement on usability. If he hadn't, I'd have ignored the demonstrations, or even flamed them. If everything had been like the initial wobbly windows effect, I'd have put it down as yet another thing that'll pointlessly bloat applications in a year or two in order to satisfy the "Ooo look, pretty colours!" mob.
Context is important. You can't really demonstrate a technique without showing that it's potentially useful. I think Seth, for the most part, wobbly windows aside, did a great job doing just that.
You are not alone. This is not normal. None of this is normal.
Humans visualize a lot of 3D, so why not your windows? I can image computer-illiterates don't see "windows", just a bunch of 2D buttons and mess at a computer screen.
Using subtile animation and shadow effects could make computing a lot easier and accessable. It allows users to distinguish between front and back windows much easier. I would certainly welcome these features if they're stable!
The best way to accelerate a windows server is by 9.81 m/s2
I know it's fashionable to bash UI eye candy, but there is a reason for it. For instance, the human eye is very good at determining depth. Drop shadows on windows help distinguish one window from another. When I turned on xcompmgr on my Ubuntu box, it was actually quite surprising how much easier it was to determine what windows are where. When you have Anjuta, Firefox, Glade, and a bunch of other applications open, it can be hard to tell what window is here. Drop shadows help create another way of visually distinguishing window placements that can enhance usability.
Transparency when done right can also help usability. The transparent dialogs here help cement the relationship between a dialog and its parent window. That's why Mac OS X has such great usability - it not only has some visually interesting eye candy, but that eye candy is designed to provide you with a series of visual cues that clue you in on what actions you're performing. The "genie effect" when you minimize a window to the Dock is another example of this - by showing the window move into the Dock you're providing a visual clue that lets you know that you can find that window again in the Dock.
When done right, eye candy can really enhance usability, and thanks to things like the Damage extension, the Render extension, and the Composite extenstion, Linux usability is getting better.
And for the record, those who think that eye candy adds excessive processor bloat, my current Linux system is a Duron 600mHz with 256MB of RAM and a GeForce4 MX. Granted, the T&L engine helps a lot in making the UI responsive, but given that xcompmgr and the Composite extension is essentially beta code it's quite shocking how little processing power this sort of thing takes. Now that T&L engines on graphics cards are pretty much standard, it's time that X put that power to use to enhance usability.