Re: Creating a .saver bundle from a Quartz project

Subject: Re: Creating a .saver bundle from a Quartz project

From: Benjamin Miller <email@hidden>

Date: Thu, 1 Dec 2005 10:37:22 +0000

Delivered-to: email@hidden

There are a number of different ways to do this. Possibly the easiest is, I think it's possible, to make a QCView a subView of your Screensaver view. There is also some sample code around on developer.apple.com called something like Cocoa OpenGL Screensaver although I'm not sure which section it is in (currently offline) that may give you some ideas. This was my starting point.

The method I finally settled on is to add an NSOpenGLView subclass as a subView of the ScreenSaverView and use a QCRenderer to draw into the NSOpenGLView's context.

// Setup

[[QCRenderer alloc] initWithOpenGLContext:[glView openGLContext] pixelFormat:[glView pixelFormat] file:filePath];

..........

// drawing time

[quartzRenderer renderAtTime:currentTime arguments:eventAttributes];

.....

[[glView openGLContext] flushBuffer];

......

[glView setNeedsDisplay:YES];

I'm definitely not an experienced Cocoa developer and have very little experience of OpenGL. The project is nearing completion and so is becoming untidy and the commenting lacking. So I can't say I feel very confident to post a tutorial or source.

There is a quite nice site with a series of tutorials, each dealing with different stages of Cocoa/OpenGL developement at:

http://zerobyzero.ca/~ktatters/

Although not dealing with what you want to accomplish immediately it looks like a good resource for background material on Cocoa and OpenGL integration.

Benjamin

On 29 Nov 2005, at 19:59, Christopher Aloi wrote:

Steven - I have been looking for a resource like this for a few

months. If you have any luck - please let me know.

Thanks,

Chris

On 11/29/05, Steven Halford <email@hidden> wrote:

Hi List,

I've created a screensaver that I want to package up in a screensaver

bundle in Xcode so that the end user cannot (easily) edit my quartz

composition and I want to eventually add a config sheet.

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