I wanted to mix past images with present images from a webcam using pix_mix. Attached is a patch that successfully does this using pix_buffer and fails to do this using pix_delay. My question is, why doesn't pix_delay work with pix_mix in my patch? How woulld I change my patch to get pix_delay to get the same results as pix_buffer does?
Thanks,
-John
What about this ? ++
Jack
Le samedi 07 novembre 2009 à 07:32 -0600, John Harrison a écrit :
I wanted to mix past images with present images from a webcam using pix_mix. Attached is a patch that successfully does this using pix_buffer and fails to do this using pix_delay. My question is, why doesn't pix_delay work with pix_mix in my patch? How woulld I change my patch to get pix_delay to get the same results as pix_buffer does?
Thanks,
-John
-- John http://alumni.media.mit.edu/~harrison/ _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Hmm. This worked for you? I get a seg fault with your patch when I click on [create, 1(. I could get it to start w/out a seg fault by disconnecting the [t a b ] from the [gemlist], then clicking on the [create, 1( then reconnecting [t a b] to [gemlist], but then it doesn't work. I only see what is coming from the camera and not any sort of mix. No errors reported either.
What I am suspecting and what I thought your patch might also be showing is that I need 2 rendering chains to use [pix_mix] and that having the images to mix in separate buffers but from the same rendering chain is not sufficient. But I'm not sure why that would be the case for a pix_ object so I could also be making up random rules for stuff I don't understand --- thus my initial question.
So basically I have a solution as I show in my original patch I sent. But I'm looking for the "why" now.
I'm running Gem 0.91.3 and Pd 0.41.3 extended on Jaunty.
Thanks,
-John
On Sat, Nov 7, 2009 at 8:49 AM, Jack jack@rybn.org wrote:
What about this ? ++
Jack
Le samedi 07 novembre 2009 à 07:32 -0600, John Harrison a écrit :
I wanted to mix past images with present images from a webcam using pix_mix. Attached is a patch that successfully does this using pix_buffer and fails to do this using pix_delay. My question is, why doesn't pix_delay work with pix_mix in my patch? How woulld I change my patch to get pix_delay to get the same results as pix_buffer does?
Thanks,
-John
-- John http://alumni.media.mit.edu/~harrison/http://alumni.media.mit.edu/%7Eharrison/ _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management ->
Le samedi 07 novembre 2009 à 19:39 -0600, John Harrison a écrit :
Hmm. This worked for you? I get a seg fault with your patch when I click on [create, 1(. I could get it to start w/out a seg fault by disconnecting the [t a b ] from the [gemlist], then clicking on the [create, 1( then reconnecting [t a b] to [gemlist], but then it doesn't work. I only see what is coming from the camera and not any sort of mix. No errors reported either.
Yep, all works fine here. Actually you needn't [pix_separator] in my patch.
What I am suspecting and what I thought your patch might also be showing is that I need 2 rendering chains to use [pix_mix] and that having the images to mix in separate buffers but from the same rendering chain is not sufficient.
Yep, it seems there is a strange behaviour with [pix_mix] and [pix_delay] from the same rendering chain. (That's why i use a [gemlist] object to avoid this problem.) If someone know why ? ++
Jack
But I'm not sure why that would be the case for a pix_ object so I could also be making up random rules for stuff I don't understand --- thus my initial question.
So basically I have a solution as I show in my original patch I sent. But I'm looking for the "why" now.
I'm running Gem 0.91.3 and Pd 0.41.3 extended on Jaunty.
Thanks,
-John
On Sat, Nov 7, 2009 at 8:49 AM, Jack jack@rybn.org wrote: What about this ? ++
Jack Le samedi 07 novembre 2009 à 07:32 -0600, John Harrison a écrit : > I wanted to mix past images with present images from a webcam using > pix_mix. Attached is a patch that successfully does this using > pix_buffer and fails to do this using pix_delay. My question is, why > doesn't pix_delay work with pix_mix in my patch? How woulld I change > my patch to get pix_delay to get the same results as pix_buffer does? > > Thanks, > > -John > > -- > John > http://alumni.media.mit.edu/~harrison/ > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
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Jack -
John Harrison