Copyright © 2007-2009 by Apple Inc. All Rights Reserved.
Quartz Composer Application
Offline A command-line tool that uses the QCRenderer API to render a Quartz
composition offscreen on the video card using an OpenGL pBuffer,
download the pixels data, then save the frames to disk as separate
compressed TIFF files.
Sample Requirements The project was created using the Xcode running under Mac OS X 10.6.x
About the sample This sample shows how to execute a Quartz Composer composition
offline with QCRenderer. This command line program needs two
parameters. The first one is the location of the Quartz Composer
composition that is to be executed. The second parameter is the
location where the generated images are to be saved. To execute a
Quartz Composer composition offline, the user needs to initialize a
QCRenderer with the composition, and then call the renderAtTime
function of the QCRenderer to execute the composition. This program
executes the composition 10 times and saves the images into the
location indicated by the second parameter.
Using the Sample Open the project using the Xcode editor which can be found in /
Developer/Applications. Build the project. Run the program with two
parameters, the location of the composition and the location to save
Changes from Previous Versions n/a
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