Hello Nisar, in this case, you may check out the second tab of the info inspector window for the "Image Importer" patch. Here you can setup a memory cache of the images. But I don't know what this exactly means (could be in main RAM or graphics card RAM). Also: The Image Importer is processing everything asynchronously except uploading the image pixel data from RAM to the graphics card. If you have big images, this will take a while and will block QC processing. If you do this in an iterator trying to fetch all images at once, this will quite sum up. If you try to schedule the import of each image to a different time this will spread the heavy DMA load over time so you probably don't see any stuttering. But this technique implies that the slideshow can't start right away.
best, Achim Breidenbach Boinx Software On 08.05.2011, at 21:39, [email protected] wrote: > Dear Achim, > > Thanks for looking into it. I just want to load all images contained in a > directory and show all of them simultaneously. The number of images should > depend on the contents of directory which should not be constant. > > Iterator patch should be able to do that but images are too heavy and image > importer is not caching the images. > > Thanks > Nisar > *** This Message Has Been Sent Using BlackBerry Internet Service from > Mobilink *** > > From: Achim Breidenbach <[email protected]> > Date: Sun, 8 May 2011 21:17:13 +0200 > To: Nisar Ahmed<[email protected]> > Cc: Alastair Leith<[email protected]>; quartzcomposer-dev list > list<[email protected]> > Subject: Re: iterator patch > > Hello Nisar, > > when you connect "Current Position" output of the "Iterator Variables" patch > (inside the iterator) to the "Y Postition" of the Billboard patch, you can > see as a test, that you are rendering (and loading!) the same image 8 times. > This is because you told the "Iterator" to do so by the "Structur Count" > patch outside the iterator. It looks like, you just want to load a single > image. In this case you don't need the iterator at all. > > Achim Breidenbach > Boinx Software > > On 07.05.2011, at 08:21, Nisar Ahmed wrote: > >> Attached is the composition in question. >> >> I was also expecting iterator patch to create multiple consumers but i guess >> 1 iterator patch is treated as 1 consumer? >> >> From: [email protected] >> To: [email protected]; [email protected] >> Subject: Re: iterator patch >> Date: Sat, 7 May 2011 11:02:48 +1000 >> >> Are you passing the images into the iterator patch as a structure? I would >> try that if you aren't already. If the image paths don't change then the >> Downloader Patch should not keep exectuing. Perhaps post a sample >> composition to show problem more clearly. >> >> On 07/05/2011, at 2:49 AM, Nisar Ahmed wrote: >> >> I need the iterator patch to execute only once for the number of iterations >> provided in its input port. Currently the patch loops back indefinitely >> which is killing performance. >> >> What I exactly need is to render images inside a folder and do some >> interaction with those images but Iterator patch is reloading the image all >> the time inside the loop. I have tried using patch time to delay loading but >> still I need a way to stop the iterator at the end of the last iteration. >> _______________________________________________ >> 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/qc.student.au%40gmail.com >> >> This email sent to [email protected] >> >> The machine does not isolate man from the great problems of nature but >> plunges him more deeply into them. >> Antoine de Saint-Exupery >> >> <dashboard.qtz> _______________________________________________ >> 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] >
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