David, In my application I have several openGLViews running in turn their drawRect method at 60 FPS. So in the drawRect method of each openGLView I set the current context to the openGLView context. These openGLViews have nothing to do with the QCView.
Well, when I call [qcView reanderAtTime... I get a freeze all the time. I have to reboot my machine. I guessed that there was a conflict between the openGLView current context and the qcView context when I called renderAtTime. So I tried to set the qcView context as current before calling renderAtTime. And this worked. The bug has gone. I have built a small project to verify that. I can send it to you. Let me know. Of course I can't use this solution on Tiger because [qcView openGLContext] is available on 10.5 or higher. I mentioned that because the compiler, when building against 10.4 SDK, doesn't advise me, unlikewise it does when I try to use other APIs reserved for 10.5. I supposed that this was an XCode's minor bug, so I mentioned it here in order to get some feedback about it. If other developers confirm that, I will file a bug. I run XCode 3.0 - Xcode IDE: 921.0 - Xcode Core: 921.0 - ToolSupport: 893.0 Actually I have adopted the solution posted by Sam, here in the list. I render the qc composition into an openGLView using a timer. It works well. I still get some garbage when resizing this view, but I hope to fix it soon with the reshape and update APIs. Thanks for your support. Best Regards -- Lorenzo email: [EMAIL PROTECTED] > From: David Duncan <[EMAIL PROTECTED]> > Date: Fri, 14 Mar 2008 10:49:18 -0700 > To: Lorenzo <[EMAIL PROTECTED]> > Cc: cocoa-dev@lists.apple.com > Subject: Re: QCView openGLContext > > On Mar 13, 2008, at 4:53 PM, Lorenzo wrote: > >> If I comment this line below >> [[qcView openGLContext] flushBuffer]; >> my app launches and runs well, but of course I can't see the QCView >> contents >> properly. I have seen that this API is available in 10.5 and later. >> Anyway >> my compiler doesn't protest when I build my app against 10.4 SDK. >> This a >> part, how can I make this work on Tiger too? Any workaround? > > > To answer the original question however, a QCView doesn't respond to > the -openGLContext message until 10.5, so that is why on 10.4 you get > that message. You shouldn't need to flush the buffer for your content > to appear correctly however, so you might want to elaborate more on > what issue your having specifically. > -- > David Duncan > Apple DTS Animation and Printing > [EMAIL PROTECTED] > > > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
