On Monday 22 October 2007 19:50, Johannes Sixt wrote:
> On Sunday 21 October 2007 22:06, Z F wrote:
> > I would like to make a movie with a "chroma key" background and replace
> > the background with another movie.
> >
> > Could some one describe step by step what needs to be done?
> >
> > I have loaded a movie and attached chroma key effect to it. It appers
> > that
> > I can make the background black, but how to make a mask out of it? How
> > to make the second video track appear in the mask?
>
> You put it in a second video track below it. You need a project format with
> an alpha channel (RGB, YUVA).

Make this RGBA, of course!

-- Hannes

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