Re: Using flters inside a .qtz

• Subject: Re: Using flters inside a .qtz
• From: "Corey O'Connor" <email@hidden>
• Date: Wed, 24 May 2006 14:43:13 -0700
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Sounds like you just want to use CoreImage image units directly. A
Quartz Composer document is, as I understand it, a composition of
image units and settings that any application can load. There is no
reason you can't compose image units in your own code and drive the
processing yourself. See here for starters:
http://developer.apple.com/macosx/coreimage.html

-Corey

Hi all.

Is it possible to use the filters inside a .qtz file without rendering
(no use of QCRenderer renderAtTime:) ?

What I'd like to have is a sequence of filters in a .qtz, lets say
Gaussian, followed by (connected to the input of) Sepia, publishing
the first filter input and last filter output. Then open the .qtz as a
QCRenderer and feed the first filter a CIImage and get the output
CIImage for rendering with CIContext's drawImage:

So far, this does not seem to be possible. Is it ? Do I have to render
using QCRenderer ? Do I have to render in a pixel buffer and load it
as a gl texture in a new CIImage or is there a shorter route
(QCRenderer uses CIImage internally...) ?

Thanks

Raphael
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-Corey O'Connor
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