In my experience and if it helps someone to save several hours of testing, reinstalling, downgrading system versions, blogging without reply, etc, etc, this is my workaround:
1. Replace the contents of this folder /System/Library/Frameworks/Quartz.framework/Frameworks/QuartzComposer.framework with the contents of an older framework folder. ( Lets say the framework found on a computer where your old composition works smoothly ) then... restart your mac. I found an older framework using Time Machine. You will find a long discussion at Kineme here: http://bit.ly/6HkoV1 I find it very interesting this topic is coming back again and again every time someone crashes against the performance of QC. Even more interesting, the mentioned workarounds are not so obvious... particularly for those (us) without the skills to find sophisticated solutions. Still there is no such thing as a list of workarounds, hints, tricks, etc... to help you through. juan On 22 Mar 2010, at 22:15, George Toledo wrote: It may be an interesting tell to disable the iterator macro and see what performance gains you achieve. In regards to Steven Watkins comment, a powerful GPU is like a bandaid on a severed limb, the limb being vital QC patches which have regressed in performance do to extremely poor conceptualization, and new ones that never worked correctly to begin with, and are currently more broken than they were in the GM ( Open CL, Mesh Warps, Mesh Lines, etc.) What would be great is if they could be immediately regressed in an update (especially the iterator), but I think it's more likely to not be so immediate. That said, I have not found many situations where there are not workarounds in 10.6.x (although they are sometimes less obvious, the same visual result can be achieved many ways). Best regards, George Toledo On Mon, Mar 22, 2010 at 5:04 PM, Steven Watkins <[email protected]> wrote: Yes I would be inclined to blame 10.6.2, which I generally think of as a disaster when it comes to QC. Its almost surprising that there hasnt been more ranting about it on the net. I doubt we have too much longer to wait till this sad moment in the evolution of QC passes. I look forward to QC on Snow Leopard getting back on track, assuming they sort out some of the problems I will be getting a powerful GPU for my Mac Pro with a view to getting OpenCL to do some interesting things. I think your macbook pro only has the 9400M graphics card but that should still deliver good enough performance in many areas, I doubt it is the problem with performance of this older composition. Cheers Steve On 22 Mar 2010, at 19:30, Tamas Nagy wrote: > Are you using 10.6.2? There are some performance bug with QC on 10.6.2 as i > know. > > > On Mar 22, 2010, at 7:35 PM, arri wrote: > >> Hi, >> >> i didn't find any other posts on similair issues and i would actually >> have been surprised >> if i had. because i think there's really something wrong: >> >> today i opened a fairly simple patch: "Constructivism" by Futurismo >> Zugakousaka. (a favorit) >> http://ibeatsonline.com/index.php%3Fref=project-quartz-jp-quicktime-26_Constructivism.html >> >> it had been quite a while since i last worked with QC, and it was the >> first time to work with QC on >> my new 13" macbook pro (latest model). having high expectations, it >> was a 'bit dissappointing' >> to see this patch would not even run at 15 fps (!!!) while the cpu is >> at max, as if all hardware- >> rendering is disabled (which it is not) >> >> i often work in a similair graphical flat/2d style myself, also using >> text, letters/typography alot and >> most of the time this is a joke for video hardware to render. so i'm >> extra curious why this performs >> so bad. it's is not a high-end machine, but it's new and also it's not >> a complex patch >> >> i tested it on my old '06 mini (1.66Ghz-coreduo, intel-GMA950) and no >> surprise: steady 60fps >> no problem and the CPU picking its' nose.. >> >> >> i think that either there's something really wrong with my macbook, or >> maybe i'm just not informed >> on modern hardware, and should learn about howto build patches conform >> todays standards.. >> >> or is it yet something else? >> >> >> also, i have -some- exprience with OpenGL and quite alot with Quartz, >> so i thought i might be able to >> use some of that knowledge to learn more about the issue. i didn't >> think QuartzDebug would make >> miuch sense here so i looked at "OpenGL Profiler" and "OpenGL Driver >> Monitor" . >> both seem to generate a huge load of interesting data, but i haven't >> really got an idea (yet..) of howto >> interpret this data in a sensible way. before i dive into that, does >> this approach make any sense? >> >> >> >> >> >> thanks >> arri >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/quartzcomposer-dev/tamas.lov.nagy%40gmail.com >> >> This email sent to [email protected] > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/steve%40dvmachine.com > > This email sent to [email protected] _______________________________________________ Do not post admin requests to the list. They will be ignored. 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