The QTVRXtra is a Lingo Xtra for Director 5.0 or greater. It allows Lingo level control over Quicktime VR movies to be placed into Director titles. The Lingo calls can be found in the PDF file: VRXtrAPI.pdf. You will also find the sample Testbed.dir Director movie usefull in providing examples of how to use the QTVR Lingo calls inside your Director titles.
The Xtra comes with an Acrobat PDF file called "VRXtrAPI.pdf" which contains all the Lingo calls for the QTVRXtra. A sample Director title called "Testbed.dir" contains examples of how to display QuicktimeVR content inside a Director title. These can both be obtained from the following web site: quicktimevr.apple.com.
When authoring with Director, the file "QTVRXtra" (a FAT Xtra that works on both 68k and PPC Macintosh computers) should be placed inside the Xtras folder of Director. When playing a Projector file, a folder called Xtras (which contains the file "QTVRXtra") should be placed in the same folder as the Projector file.
For more information on the QTVRXtra, visit the QuicktimeVR website at: quicktimevr.apple.com. You can also subscribe to the QTVR e-mail list at: www.solutions.apple.com/ListAdmin/
***Known Issues***
･ QuickTime VR Object movies don't like to share the stage with QuickTime movies. If a QTVR object is on the stage at the same time as a linear QuickTime movie, the linear movie will not play correctly while the mouse is over the QTVR object. This is a limitation of the QTVR 1.0 runtime: the object movie controller completely takes over while the mouse is in an object movie.
･ This Xtra is a Lingo level Xtra for Director. This means that Director really has no idea that a VR movie is present and playing on top of the stage. This is important, because any commands that cause redraws or repaints of the stage (such as updateStage) will completely wipe the VR movie (it is after all being painted on top of the stage). Knowing this, you must be carefull that any commands you issue that repaint the stage must be followed up with a QTVRUpdate command to repaint the VR movie as well.
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