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Re: Custom alpha overlay for QTVR






Dear All,

I want to play back a QuickTime VR .mov file, panning around, etc. as
normal. At the same time, for any given orientation and zoom, I need to
process the image before displaying it on the screen (I want to apply a
custom alpha map which depends on the FOV, PAN and TILT). I am using
Windows Server 2003 and MS Visual Studio .NET 2003. I have downloaded
the QuickTime SDK already, but it's somewhat overwhealming!

I thought that one of the samples e.g. simpleplayersdi.win might be
amenable to being modified to accomplish this. Can anyone suggest how I
might go about this? All hints, tips, URL's, ... gratefully received.

Many thanks,

Chris Rodgers.



hmm look at the vrscript sample code. ? use a backbuffer proc?

the sorenson codec has some nice alpha channel stuff built in,

and you can use it as a track in quicktime.


this movie is a pano with a superimposed object movie as your mouse goes over the figure, it will spin
as you pan.


http://www.vrhotwires.com/soren3great.mov

 the edges are very clean because of sorenson alpha.







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