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Questions tagged [quartz-composer]

Quartz Composer is a node-based visual programming language freely available to registered Apple developers for realtime processing and rendering animated 2D and 3D graphics with JavaScript scripting.

Quartz Composer is a node-based visual programming language freely available to registered Apple developers for processing and rendering animated 2D and 3D data.

Quartz Composer uses OpenGL, OpenCL (only in Mac OS X 10.6 and later), Core Image, Core Video, Core Audio, JavaScript, and other technologies to build an API and a developer tool around a simple visual programming paradigm. It used to be part of the Xcode development environment in macOS but is now a separate download named Additional Tools for Xcode.

136 questions
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Quartz Composer barcode scanner

Are there any Quartz Composer barcode scanner plugins that can run on Leopard (10.5)? I need something that can scan the type of barcode found on the back of books; I've seen a DataMatrix plugin using libdmtx which scans some other types of barcode.
None
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Why is my QTKit based image encoding application so slow?

in a cocoa application I'm currently coding, I'm getting snapshot images from a Quartz Composer renderer (NSImage objects) and I would like to encode them in a QTMovie in 720*480 size, 25 fps, and H264 codec using the addImage: method. Here is the…
mben
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What is NSTaggedDate?

I have an error that I can't understand, that is happening while I want to release all objects in an NSMutableDictionary. It's happening for a custom object called body and the output is : -[__NSTaggedDate body]: unrecognized selector sent to…
Benoît Lahoz
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Does Xcode 4.3 include Quartz Composer?

I just installed Xcode 4.3 from the App Store. As I started it first, it asked if I want to delete existing 4.2. Does 4.3 include Quartz Composer? Where is it located? Or should I say no and keep 4.2 for QC?
Kangwon Lee
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Exporting Quartz Composition to .mov file

I'd like to export my prepared quartz composition (I'm using Quartz Composer 4.6) to .mov. I tried to it with "File > Export as a QuickTime Movie", but it asks me about duration time and after clicking OK it creates a file .mov what is "zero…
Konrad Kolasa
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Quartz Composer in iPhone UIView

I am trying to embed a Quartz Composer document in an iPhone app. I know Quartz Composer support was added in iPhone OS 3.1 (at least, that's what Wikipedia says) but I can't find any good resources on how to do this. Do I use CGContext? Or are…
Peter Hajas
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Acessing a QC Structure from a Cocoa Application

is there a way of acessing a structure from a Cocoa app? I am able to set integers and Strings using the QCView setvalue:forkey method but when i try to access a structure i run into errors. Basicly what i want to do is to pass a byte array into a…
madsonic
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Can you control the speed of a video clip playing in Quartz Composer?

Is there a way to manipulate the speed of the video playback? I'm especially interested in a way to slow down with frame blending, exactly like the function in Final Cut Pro.
thescreamingdrills
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Very confused by a binding issue between a Cocoa app and a Movie Loader patch in Quartz Composer

I've been programming for a while, but just recently decided to start developing for Mac OS X. I feel like I've come to grips with the basics of Objective-C and Cocoa development over the past week. I'm planning on making graphics apps, and as such…
thisissami
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Interfacing Java and Quartz Composer

I have written this event photography application that features a slideshow among other things. The application written in Java and is multi-platform. However on Mac OS X, it takes advantage of the graphics abilities of Quartz Composer by including…
Maurice Perry
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Adding A Quartz Composer Macro to the Patch Creator

Can I add a macro in Quartz Composer to the Patch Creator, so I can add it to all my compositions?
None
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SED, Getting the last file name

It is a SED issue. I am working in Quartz Composer (Mac OSX) script to: Open the last .log from a directory. Getting the last text line of that file and remove its 24 first characters. Show the last line each time a new one is created inside the…
Pablo
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Lines not displaying in QCView, but are shown in Quartz Composer Viewer

I have a Quartz composition that draws lines using Kineme GL Line objects. My client complained about aliasing effects, so I replaced all the Kineme GL Lines with regular Line objects. I see a lot of improvement with respect to aliasing when I…
user1238705
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Quartz composer HLS video trouble

I have a Quartz Composer Version 4.5 (141.5) on my MacOS 10.7.2 and a QuickTime Framework version 7.6.6. All I want is just render test HLS video stream using QC. HLS stream is just an apple test stream:…
icanhazbroccoli
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CGImage leaks, no matter how I CGRelease

the context is a Quartz Composer plugin, in which I want to create a CGImage out of camera frame. This is the relevant code id inputImage_ = self.inputImage; CGColorSpaceRef colorSpace = [inputImage_ imageColorSpace]; and…
Hazam
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