Hi, I've just installed Leopard and tried this, but I'm not getting the speed up I was hoping for. Although diasbleVBLSyncing is enabled and I've restarted QC, the frame rate is still roughly in multiples of 60 and the speed is the same as before even if I put the resolution right down. Is it possible that there could be a bug in (for example) the Core Image Accumulator or Kernel patch which causes it to only update once per VBL even when syncing is disabled? Or is there something else I can do?
I'd much rather not go down the thin app route if it's at all possible because I don't have much time to learn Objective C, and the instant feedback and ease of applying colour effects etc. are important in this project. Nathaniel On 11/02/2008, Christopher Wright <[EMAIL PROTECTED]> wrote: > > > I'm currently working on a project in Quartz composer using a Core > > Image kernel with an accumulator to perform a physical simulation. > > I'd like the simulation to run as fast as possible rather than only > > updating once per frame - is there a way to achiece this, eg. by > > turning off VBL sync? > > > You can turn off VBL Sync by holding down the Option Key, selecting > Preferences from the Quartz Composer menu, and selecting > "disableVBLSyncing" under the "(Editor)" tab. You'll have to restart > QC for this to take effect. > > Otherwise, you may have better performance by writing a thin > application that doesn't render to the screen at all. > > > -- > [ christopher wright ] > [EMAIL PROTECTED] > http://kineme.net/ > >
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