Hello Steve,
there might be a performance optimization going on. We stumbled over a
similar situation, when we feed an image of an movie into a simple
image-input-to-billboard-composition. The composition got no new image
value since the image pointer itself doesn't changed. So the
optimization was like "No input value did change, so there can't be a
change in the output, so we don't need to render...". We put a "keep
me alive"-patch combination in the composition: A LFO connected to the
"X Position" input of a Sprite patch which had a width=0 and height=0.
This draws nothing on screen, but helped the QC to think there is
something changing the output, so it need to have to render it.
Is this working for you, too?
Achim Breidenbach
Boinx Software
On 16.04.2010, at 05:58, Steve Christensen wrote:
I'm seeing something strange. I have created a subclass of QCView so
that I can do some additional drawing inside -
renderAtTime:arguments:. On a 10.5.8 system, the animation keeps
running, no problem. On a 10.6.2 system, it runs for a bit and then
stops. I added a call to NSLog inside my -renderAtTime:arguments:
method, but after a bit the render method is no longer called, which
is at least consistent with seeing no more drawing.
I also registered for QCViewDidStart/StopRenderingNotifications, and
I get a start notification when the window containing the QCView is
first displayed and a stop notification when the window is ordered
out, so the view apparently thinks it's still running.
Any ideas about what might be happening?
steve
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected]
)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com
This email sent to [email protected]
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com
This email sent to [email protected]
