I have a cocoa app that needs to be able to render compositions at
different user-selectable resolutions.
I noticed that the QCTV sample at http://developer.apple.com/samplecode/QuartzComposer_WWDC_QCTV
implements this functionality by releasing its QCRenderers, resizing
the view/gl context, and then loading new QCRenderers.
However, whenever I try this (even in QCTV) I get an EXC_BAD_ACCESS.
A backtrace shows
#0 0xfffeff20 in objc_msgSend_rtp ()
#1 0x987e8114 in -[QCPatch(Private) _cleanup] ()
#2 0x987e7fa4 in -[QCPatch(Private) _cleanup] ()
#3 0x987e7eac in -[QCPatch(Runtime) stopRendering] ()
#4 0x9881ec14 in -[QCRenderer dealloc] ()
I'm running 10.4.7, XCode 2.3
Does anybody have any insight into this? Did this perhaps work in a
previous version?
thanks,
-Dan Treiman
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