The link to Quartz Composer on the Origami page is old. Here is the current one for XCode 6.1 and Yosemite: https://developer.apple.com/downloads/download.actio

The link to Quartz Composer on the Origami page is old. Here is the current one for XCode 6.1 and Yosemite: https://developer.apple.com/downloads/download.action?path=Developer_Tools/graphics_tools_for_xcode__xcode_6.1/graphicstools_for_xcode_6.1.dmg https://developer.apple.com/downloads/download.action?path=D...