Hello Charlie, I realized the same behavior of increasing rendering time. As I remember correctly this is only a glitch in a measurement routine in QuartzComposer. So pressing command-K switches something off, which then brings the correct values.
Another idea for your composition: You can use a "Accumulator" patch to store the complete grid in a single image and display it with a billboard as layer 1. Then from a Java Script patch you can control a macro that just draw a single grid item and its swipe transition. When the transition has finished, you can store the new image portion in the accumulator and advance to the next image. If you use the Blend mode of billboard and having swiped your new image from transparent to opaque you even haven't to know whats below the one image is, because you draw the accumulator first. Best, Achim Breidenbach Boinx Software On 31.01.2011, at 13:35, Charlie Francis wrote: > Hey, > > I was looking to create a grid of images that would transition between any > extra image given in a structure, kind of similar to the iTunes Screensaver > that shows all of your album art in a grid. > > I'm not sure if this is the best way to do it, but I've got it working. First > I tried using an iterator, and caching the images, but it was screwing up on > the transition. I changed it to a limited number of images in a grid. When I > was looking at the performance graph I noticed that the execution and > rendering time seems to increase over a few cycles, and then resets, like > it's building something up in memory and then dumping it. I'm not sure what I > should take from the graph, and how accurate it is. > > Is there a way to see the source code behind the iTunes Screensaver, as I > think it will give me a good lesson on how to manage multiple images/videos > whilst looking after those precious resources. > Am I correct in thinking the example screensaver "Security" appears to take > the video input and build 1 single image. Is this a better way of doing it > rather than copy pasta'ing loads of macros? > > Regards, > Charlie > <picture_rotator.zip> _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/quartzcomposer-dev/achim%40boinx.com > > This email sent to ac...@boinx.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
