I notice in your demo video with the Australian Dance Theatre there are > some shots that seem to employ a time-delay effect. Were these queued from > a loop sampled by your plugin?
I think the Sampler features twice in that video - once where Thomas had 20 instances of the Sampler in a patch so he could build up a bank of loops as the dancer moved across the stage which he then composited atop each other (perhaps this would work for you?), and again with a dancer's face where he has one instance and manipulates the Offset to jump about the immediately preceding moments. I had different effect where I was using tom's sampler. For the face delay, I had one instance of the sampler, always recording and an lfo playing randomly on the playhead offset. For the multiplication of dancer, I had up to 20 instance of the sampler in a patch recording then replaying in palindrome on each one, one after the other one. I then using the maximum blend mode to Composite the different instance of the dancers. I was instanciating all the sampler into one patch more than using iterator, I had few issue with the sampler in iterator, but didn't look much into it and didn't retry since. You could make your time trail effect by using different instance of the sampler always recording with a slice delay on the offset on each one then compositing all the images together. This sampler allowed really a lot of possibility, as it can also sample other stuff than just images and is really efficient on image sampling. I can share my patch on next we if wanted, actually not home and didn't have the backup of the performance here. Thomas Pachoud Ingénieur multimédia IMAC www.creapach.fr On 19 April 2012 13:04, Bruno Degazio <[email protected]> wrote: > Thank you for the wonderful Sampler plugin. I can see it as having many > uses in Quartz Composer. > > However, I can't figure out how to use it to get the sort of "time > trailing" effect I've been wanting, at least not without introducing a > Queue into the composition. Which naturally brings back the problem I > started with. > > I notice in your demo video with the Australian Dance Theatre there are > some shots that seem to employ a time-delay effect. Were these queued from > a loop sampled by your plugin? > > ------------------------------------------------- > Bruno Degazio > Sheridan College, Oakville, ON > [email protected] > website: http://www-acad.sheridanc.on.ca/~degazio > > > > > On 2012-04-18, at 6:33 AM, Tom Butterworth wrote: > > I have a Sampler plugin which you might be able to use as a substitute for > the Queue - it takes time into account so will sample and play back at the > same rate. > > http://kriss.cx/tom/2012/04/sampler-2/ > > On 17 April 2012 12:53, Bruno Degazio <[email protected]> wrote: > >> On further testing I've determined that the Iterator is working fine. The >> problem instead has to do with the way the Queue fills in non-real time. >> Basically, the Queue fills in quick spurts that are unrelated to "frames". >> In my composition, this is true even when the "continuous" mode is off, >> because of the presence of a particle system upstream from the cue, which >> causes the image to change on every tick of the external clock. Also, >> various patches in the composition respond in realtime to incoming MIDI. >> >> The problem has now become, how to fill the queue with consecutive frames? >> >> All of this complication comes from the "pull data" paradigm of Quartz >> Composer. Perhaps it simply isn't the right tool for this job. It works >> wonderfully in rel-time response to MIDI, but my attempts to render it >> into a video file seem inordinately complicated. >> >> ------------------------------------------------- >> Bruno Degazio >> Sheridan College, Oakville, ON >> [email protected] >> website: http://www-acad.sheridanc.on.ca/~degazio >> >> >> >> >> On 2012-04-14, at 10:35 PM, Achim Breidenbach wrote: >> >> Hi Bruno, >> >> can you hack together a small sample composition where we can see this >> sideeffect you are discribing? >> >> Best, >> >> Achim Breidenbach >> Boinx Software >> >> >> On 14.04.2012, at 17:28, Bruno Degazio <[email protected]> wrote: >> >> I've been having a problem using the Iterator in a composition driven >> from an external timebase. The Iterator is used for a trail effect on a >> moving sprite, and the external timebase is fed into the composition using >> OSC. >> >> Everything works fine when running the composition in real time, i.e. the >> timebase being fed to it is very close in rate to the internal timebase of >> Quartz Composer, but when I run the timebase at a very slow rate (e.g. for >> rendering out individual frames in order to produce a quicktime video) the >> result is quite different. It appears that the Iterator continues to run on >> its internal timebase, despite being set to "External." >> >> Because the iterator is being fed images via a Queue, I thought the >> problem might be there. But the problem persists whether the Queue is set >> to "continuous" or not. >> >> Is this a known side-effect of working with Iterators, or am I doing >> something wrong? >> >> thanks! >> ------------------------------------------------- >> Bruno Degazio >> Sheridan College, Oakville, ON >> [email protected] >> website: http://www-acad.sheridanc.on.ca/~degazio >> >> >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Quartzcomposer-dev mailing list ([email protected]) >> Help/Unsubscribe/Update your Subscription: >> >> https://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: >> >> https://lists.apple.com/mailman/options/quartzcomposer-dev/bangnoise%40gmail.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: > > https://lists.apple.com/mailman/options/quartzcomposer-dev/lifemusic%40sympatico.ca > > 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: https://lists.apple.com/mailman/options/quartzcomposer-dev/thomas.pachoud%40gmail.com This email sent to [email protected]
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