Hi
I'm trying to put together a video bluescreen and I'm just not
finding the right object I think. pix_multiply sort of does what I
want by dropping out white in a video and replacing it with another
video but how do I get this working with a defined colour (i.e. not
necessarily white but the blue or green normally used in studios).
There seem a few objects that deal with different ways of mixing
images/videos pix_mask, pix_mix, pix_composite etc. Which is the
right one to use? Thanks in advance.
a+ gar _________________ Garrett@asquare.org http://www.asquare.org/ http://www.asquare.org/networkresearch/
If you want to use a blue/green screen, i think [pix_background] is
what you are looking for.
++
Jack
Le 3 févr. 09 à 19:36, Garrett Lynch a écrit :
Hi
I'm trying to put together a video bluescreen and I'm just not
finding the right object I think. pix_multiply sort of does what I
want by dropping out white in a video and replacing it with another
video but how do I get this working with a defined colour (i.e. not
necessarily white but the blue or green normally used in studios).
There seem a few objects that deal with different ways of mixing
images/videos pix_mask, pix_mix, pix_composite etc. Which is the
right one to use? Thanks in advance.a+ gar _________________ Garrett@asquare.org http://www.asquare.org/ http://www.asquare.org/networkresearch/
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/ listinfo/pd-list
Hi,
Garrett Lynch wrote:
I'm trying to put together a video bluescreen and I'm just not finding the right object I think. pix_multiply sort of does what I want by dropping out white in a video and replacing it with another video but how do I get this working with a defined colour (i.e. not necessarily white but the blue or green normally used in studios). There seem a few objects that deal with different ways of mixing images/videos pix_mask, pix_mix, pix_composite etc. Which is the right one to use? Thanks in advance.
[pix_chroma_key] could do what you need. For higher quality results you'll have to use several objects and use some compositing techniques like explained here:
http://www.blendedplanet.com/?Freebie_Tutorials:The_Ultimate_Keyer
It's for blender3d and probably overkill for your needs but you can use some of its basic principles in GEM too.
- btw has anyone done something like that in pd? I only used it in
blender some time ago.
cheers, Martin
hello...
i would be interested in this too if anyone has something. i actually was just trying some stuff out with a green screen but did not get very far.
although i did not play around for long i did have trouble getting the [pix_chroma_key] to work well (or do anything at all for that matter).
i just did something like:
[gemhead 1] | [pix_video] | [pix_alpha]
and
[gemhead] | [pix_film]
...but im sure there is someone that knows something better optimized for green/blue screen work.
--- On Tue, 2/3/09, Martin Schied crinimal@gmx.net wrote:
From: Martin Schied crinimal@gmx.net Subject: Re: [PD] video bluescreen To: "Garrett Lynch" lists@asquare.org Cc: pd-list@iem.at Date: Tuesday, February 3, 2009, 2:41 PM Hi,
Garrett Lynch wrote:
I'm trying to put together a video bluescreen and
I'm just not finding
the right object I think. pix_multiply sort of does
what I want by
dropping out white in a video and replacing it with
another video but
how do I get this working with a defined colour (i.e.
not necessarily
white but the blue or green normally used in studios).
There seem a
few objects that deal with different ways of mixing images/videos pix_mask, pix_mix, pix_composite etc.
Which is the
right one to use? Thanks in advance.
[pix_chroma_key] could do what you need. For higher quality results you'll have to use several objects and use some compositing techniques like explained here:
http://www.blendedplanet.com/?Freebie_Tutorials:The_Ultimate_Keyer
It's for blender3d and probably overkill for your needs but you can use some of its basic principles in GEM too.
- btw has anyone done something like that in pd? I only
used it in blender some time ago.
cheers, Martin
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Hi
I've triedpix_background and can't see how two images are fed in (but
it's late and I need to come back to it again later in the week). I
had already tried pix_chroma_key without much success but I'll have a
look at this tutorial and see if it helps. Again if anyone has a
simple example that would be great but I'll keep chipping away at it
in the meantime.
a+ gar
On 3 Feb 2009, at 19:41, Martin Schied wrote:
Hi,
Garrett Lynch wrote:
I'm trying to put together a video bluescreen and I'm just not
finding the right object I think. pix_multiply sort of does what
I want by dropping out white in a video and replacing it with
another video but how do I get this working with a defined colour
(i.e. not necessarily white but the blue or green normally used in
studios). There seem a few objects that deal with different ways
of mixing images/videos pix_mask, pix_mix, pix_composite etc.
Which is the right one to use? Thanks in advance.[pix_chroma_key] could do what you need. For higher quality results
you'll have to use several objects and use some compositing
techniques like explained here:http://www.blendedplanet.com/?Freebie_Tutorials:The_Ultimate_Keyer
It's for blender3d and probably overkill for your needs but you can
use some of its basic principles in GEM too.
- btw has anyone done something like that in pd? I only used it in
blender some time ago.
cheers, Martin
Garrett@asquare.org http://www.asquare.org/ http://www.asquare.org/networkresearch/
http://megrimm.net/software/green-screen-pd-0.01/green-screen-pd.zip
this sort of works although its still pretty sloppy. didn't try with screen yet but with the help of iohannes and jacks color picker examples one should be able to key out any solid color from a video just by selecting it in a gem window.
works on my side on osx.
mark
--- On Wed, 2/4/09, Garrett Lynch lists@asquare.org wrote:
From: Garrett Lynch lists@asquare.org Subject: Re: [PD] video bluescreen To: pd-list@iem.at Date: Wednesday, February 4, 2009, 5:31 AM Hi
I've triedpix_background and can't see how two images are fed in (but it's late and I need to come back to it again later in the week). I had already tried pix_chroma_key without much success but I'll have a look at this tutorial and see if it helps. Again if anyone has a simple example that would be great but I'll keep chipping away at it in the meantime.
a+ gar
On 3 Feb 2009, at 19:41, Martin Schied wrote:
Hi,
Garrett Lynch wrote:
I'm trying to put together a video bluescreen
and I'm just not finding the right object I think. pix_multiply sort of does what I want by dropping out white in a video and replacing it with another video but how do I get this working with a defined colour (i.e. not necessarily white but the blue or green normally used in studios). There seem a few objects that deal with different ways of mixing images/videos pix_mask, pix_mix, pix_composite etc. Which is the right one to use? Thanks in advance.
[pix_chroma_key] could do what you need. For higher
quality results you'll have to use several objects and use some compositing techniques like explained here:
http://www.blendedplanet.com/?Freebie_Tutorials:The_Ultimate_Keyer
It's for blender3d and probably overkill for your
needs but you can use some of its basic principles in GEM too.
- btw has anyone done something like that in pd? I
only used it in blender some time ago.
cheers, Martin
Garrett@asquare.org http://www.asquare.org/ http://www.asquare.org/networkresearch/
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
-
Garrett Lynch -
Jack -
mark edward grimm -
Martin Schied