Movie with a mask?

[Klaus Major]

Hi Graham,

> ...
>> > totally different.  Is it possible to tell a player to
>> > do this?
>>
>> Yes: set the alwaysbuffer of the player to true, then lay any masked 
>> image
>> over the player.
>
> But what if the movie requires a different mask per frame? - imagine 
> for example
> a windmill going round, so that the sails are in a different position 
> in each frame,
> and you want the user to see the background behind the windmill except 
> where
> the sails happen to be. Then AFAIKS you have to have a kind of movie 
> mask - is
> this perhaps an alpha channel for the movie? I have tried to 
> understand this in QT
> Pro but have got precisely nowhere. Information about how to do this 
> sort of thing
> (including whether it's even possible) seems to me very hard to come 
> by.
> My current solution is to avoid the problem by replacing the windmill 
> with a
> spinning disk, but I would rather not.
>
> Graham

i don't think this is possible at all :-(

Neither with RR nor with QuickTime...

In QT you can only have one static mask (starting with version 5, i 
think...)

Haven't tried to play such a movie in RR yet. Don't have one at hand...
(Anyone did it? Does it work?)

Try to use one ore more animated gifs.

I think this is the only chance to have "moving masks"
(a.k.a. "travelling matte" in serious video-editing business ;-)
in Revolution.

Hope that helps.


Regards

Klaus Major
klaus at major-k.de
www.major-k.de