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Another geeky Cocoa dev update: I haven’t had time to check it out yet but I just have come across the Toxic Media Framework from Toxic Software which is BSD licensed and adds some very interesting extra palettes to Interface Builder.
Most interesting to me is two new Palette objects CCoreImageView and CCoreVideoMovieView. I’m not sure exactly how he has implemented these controllers but potentially they can be connected to a published image output from a Quartz Composition and will allow preview or thumbnail windows to be implemented in hardware. If anyone has tried these already I’d appreciate any more information, still waiting a reply from the author at the moment.
Update: John Wright has replied to me and told that that this should work but he’s unsure what the frame rate hit will be. I believe that a Quartz Composer published image port is of type CIImage and as that’s what the CCoreImageView palette object displays it should be very fast. Now I just have to figure out how to compile and install new frameworks into Interface Builder. Does anyone have a spare couple of days in the week to loan me?
Also I’ve been experimenting with what is possible using multiple compositions running at once, both linked to the same NIB file in interface builder. I could get a lot of functionality I want if it was possible to link one control to two compositions. eg I want one text entry box to feed into the path for a quicktime movie in two seperate compositions running in two windows.
So I add two QC patch controllers, set up two windows, this is easy. How can I then bind the text boxes value to both published inputs? Is this even possible? Maybe this is possible with some objective c code but not in interface builder? So far I’ve got no answer to this from the Quartzdev list, I don’t know if that means it’s a really stupid question or a really hard question…..
Technorati Tags: Quartz Composer, Cocoa Dev
You may find these helpful:
http://svn.toxicsoftware.com/public/trunk/Frameworks/ToxicMedia/Output/
There are precompiled binaries of the framework and the interface builder pallet there.
Left by tub on July 20th, 2006