Can anyone tell me if it's possible to run QC3 (and thus edit/view QC3 authored QTZs, and also work with QC3 style QCViews, QCRenderers, etc) without any compatibility issues under Snow Leopard?
QC3 will continue to run. However, it will acquire the "new" look (because QC.app secretly uses QC.framework to render the editor stuff). Additionally, when saving using QC3 on SL, you'll get QC4- style compositions (they're compatible both ways -- I've successfully opened QC4 qtz on QC3, just new stuff gets ignored). The only way to get "pure" QC3 qtz is to stick to Leopard (I personally wouldn't worry about compatibility, but perhaps there are some severe differences that I've not seen/thought of?)
Additionally, QCRenderer and QCView classes will be of the QC4 variety -- they're also part of the framework, not the app. In general, the QC app has very little to do with what QC can/cannot do, it's all in the framework.
ie. If I upgrade my home computer, will it prevent me from working on legacy QC stuff from work?
Your legacy stuff should continue to work (in as much as QC4 quirks allow -- I think almost all QC3 stuff should be fine thought). As an added perk, your "lousy framerate" test compositions finally work without dying -- that's definitely a pleasant surprise :)
-- [ christopher wright ] [email protected] http://kineme.net/
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