[michelangelo33]

So, last night, I'm walking through the local Apple store when I catch a glimpse of the 15" TiBook morphing through backgrounds.
Seemed very relaxing.

So, as soon as I got home, I set up my 15" TiBook to do the same.
I set it on Abstract to change picture every 5 seconds at random.

My background does not so much morph as just snap to a new pic.
---not at all relaxing.

I go over to my wife's desktop. Set her settings to mirror mine. Her pics fade from one to the next.

Why will my computer not do this?

I have the latest version of OS X (just updated 2 days ago)
I have the colors set to millions.

Any ideas?
Thanks.

[Lew]

Does your TiBook have an ATI Rage 128 graphics chip? The crossfading backgrounds require a Quartz Extreme-capable machine.

[Rickster]

What vintage of TiBook do you have?

The desktop-fading thing seems to have a built-in performance limiter of some sort -- if it can tell that the animation will get less than so many frames a second (and it only last about a second, maybe less), it'll just punt and switch images without fading. This correlates well with whether your Mac supports Quartz Extreme, but I've also known QE-capable Macs to forgo the animation when under heavy CPU/GPU loads.

[starman]

Is cross-fading actually turned on?

Mike

[michelangelo33]

I do have the ATI Rage 128.

The computer:
500 MHz
512 MB

I cannot find anywhere to turn on cross-fading in Desktop...
In Screen Effects, there is an option for cross-fading, and it works just fine here.

Any other ideas? Is there a setting I am missing?

[jokell82]

It's a feature of Quartz Extreme. Your Rage 128 is not supported by QE, so you won't get the fading in between images...

[michelangelo33]

My wife's desktop has ATI Rage 128 as well. Her desktop pics cross-fade.
Could it be anything else?

[Some Guy []]

wrong, it isn't a Quartz Extreme feature, it's just using OpenGL.. this 'fade' effect of the screensaver worked on my dual usb ibook/500 which had a r128.


-justin

[vasu]

I remember using the cross fade screen saver on osx public beta running on a powerbook g4 pismo 400mhz with 128mb of ram, surely a TiBook 500 should be able to do it

-vasu

[Gee4orce]

We're talking about 2 different things here:

cross fading in the screensaver has been there since day 1 of Public Beta

cross fading of the desktop background requires you to have a Quartz Extreme capable machine (presumably to reduce the CPU load)

[starman]

Originally posted by michelangelo33:
I do have the ATI Rage 128.

The computer:
500 MHz
512 MB

I cannot find anywhere to turn on cross-fading in Desktop...
In Screen Effects, there is an option for cross-fading, and it works just fine here.

Any other ideas? Is there a setting I am missing?

Click "Configure".

Mike

[michelangelo33]

In 'Desktop' I do not have 'configure'.
I have configure in 'Screen Effects'. But I am not trying to configure 'Screen Effects'.

[starman]

After re-reading your first article, it's not clear what you wanted the computer to do. You just said it was "morphing through backgrounds". Sorry.

Mike

[moreno]

presumably to reduce the CPU load

not presumably. even with quartz extreme, during the transition, you can fell the system less responsive (on my pb 800)

[ryju]

I have an ATI rage 128.
Desktop fading = negative
Screensaver fading = positive

stupid 8mb card.

[Brazuca]

My GFs TiBook 400 does not cross-fade the background.
My mom's TiBook 550 does.

I don't remember the specs on the GPU, but my lowly G4/400 did not crossfade *until* I upgraded the GPU to a Radeon 8500. Now it it beautiful.