Re: Multiple QTMovies and Images under one controller
Re: Multiple QTMovies and Images under one controller
- Subject: Re: Multiple QTMovies and Images under one controller
- From: "douglas a. welton" <email@hidden>
- Date: Mon, 5 Mar 2007 13:44:26 -0500
Tim,
I can't point you to a book about QC, although I know that there are
several articles available at the Apple web site.
Take a look at the "Mouse Tracking.qtz" sample project in your /
Developer/Examples/Quartz Composer folder. This should give you some
clues as to what you can do with interactivity.
For more guidance, you may also want to check out the Quartz Composer
Developers mailing list.
later,
douglas
On Mar 5, 2007, at 1:30 PM, Tim Yates wrote:
I did think about using QuartzComposer, and was impressed by how
quickly I could get multiple video sources set programatically via
Cocoa to all play at the same time, but I couldn't see how to write
interactivity into the app, so that the movies could be dragged
around, looped, etc...
I'm new to OSX coding, and probably have missed something... Are
there any Composer books you would recommend? There's so many new
areas of interest I want to explore :-)
And yeah, I do need all the movies playing (and visible)
simultaneously
Thanks!!
Tim
On 3/5/07, douglas a. welton <email@hidden> wrote:
Tim,
Have you looked into using Quartz Composer and QCView to accomplish
what you want?
Another option is dynamically creating an interactive QuickTime movie
with multiple video tracks. These tracks can be "programmed" to
respond to mouse clicks, which could alter each movie's geometry - if
you need to have the user "lay out" the movies in relation to one
another.
Also, is their some constraint in your application that forces you to
show all the movies in one view?
later,
douglas
On Mar 5, 2007, at 11:34 AM, Tim Yates wrote:
> Hi everyone, I hope someone can point me in the right direction,
I've
> got that flailing feeling at the moment...
>
> I am trying to write an application to play multiple movies and
> display images simultaneously on the same View
>
> The first thing I tried was declaring my own view which created
> QTMovieView subviews that could be dragged around, but after
reading
> these lists found out that overlapping views is not a Good Thing
to be
> doing (and you cannot draw over the top of QTMovieView very
easily to
> show resize handles, etc
>
> So I am now trying rendering movies/images etc to OpenGL
textures, and
> displaying them as OpenGL quads (like the QTCoreVideo101 sample,
and
> the LiveVideoMixer sample).
>
> Is this the way forward?
>
> I keep crashing head first into problems, and don't have the
> experience to tell me if it is worth going forward...
>
> It would be great if someone could tell me if I am on the right
path,
> or if there are other avenues I should be looking into and
> considering..
>
> Thanks for any help/ideas/new directions you can give!
>
> Tim
>
> PS: Sorry if this is a regularly repeated question, I had a quick
> look through the search, but couldn't see anything directly
relating
> to my problem :-(
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