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Quicktime overlay (Real Studio games Mailinglist archive)

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[ANN] Preview of RBD 2.4   -   Marc Zeedar
  Quicktime overlay   -   Ken Gish
   Re: Quicktime overlay   -   Joseph J. Strout
    Re: Quicktime overlay   -   Christian Schmitz
   Re: Quicktime overlay   -   Christian Schmitz
    Re: Quicktime overlay   -   Ken Gish

Quicktime overlay
Date: 17.06.05 17:46 (Fri, 17 Jun 2005 12:46:50 -0400)
From: Ken Gish
I have a Quicktime window playing an mpeg movie that I want to overlay a
static image (png) on top of (with a fade in/fade out effect if possible;
most of the overlay has to be transparent). The fade-in/fade-out effect
could be generated as a flash movie if that makes it easier to combine. The
quality that results when combining bitmap into the movie is poor. To
maximize quality, I would like to keep the overlay image separate if
possible.

Seems like QT effects might work but not sure. Any ideas?

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Re: Quicktime overlay
Date: 17.06.05 18:01 (Fri, 17 Jun 2005 12:01:29 -0500)
From: Joseph J. Strout
What platform? On OS X, you might use an actual overlay window (or
even just a regular window, in which you monkey with the window alpha
setting via a Declare).

HTH,
- Joe

Re: Quicktime overlay
Date: 17.06.05 18:57 (Fri, 17 Jun 2005 19:57:48 +0200)
From: Christian Schmitz
Joseph J. Strout <<email address removed>> wrote:

> What platform? On OS X, you might use an actual overlay window (or even
> just a regular window, in which you monkey with the window alpha setting
> via a Declare).

Whether declares or plugin.

There is a bug in Realbasic which makes all RB apps using Overlay
windows to not receive events in the parent window.

Please fix it.

<http://support.realsoftware.com/feedback/viewreport.php?reportid drky
uq>

Mfg
Christian

-

Re: Quicktime overlay
Date: 17.06.05 18:57 (Fri, 17 Jun 2005 19:57:48 +0200)
From: Christian Schmitz
Ken Gish <<email address removed>> wrote:

> I have a Quicktime window playing an mpeg movie that I want to overlay a
> static image (png) on top of (with a fade in/fade out effect if possible;
> most of the overlay has to be transparent).

The MBS plugins include an example project for that "Movie Overlay".

Mfg
Christian

Re: Quicktime overlay
Date: 17.06.05 20:15 (Fri, 17 Jun 2005 15:15:08 -0400)
From: Ken Gish
OS X (10.3.9). I prefer an approach which doesn't require another plugin
and supports as far back as 10.2 (I am still hoping to support 10.2; this is
limited by the fact that I am using composite windows).

Using a separate window for the overlay is a good idea. The only thing I
can't see is how you would make parts of the overlay image (on top)
transparent all the time. There's probably a trick to this that I am not
aware of.

Also, I have had problems getting things to sit on top of a movie playing in
a Quicktime window (which is why I thought building it into a Quicktime
movie was a better approach). Quicktime has something which does chroma key
but I don't want to go down that path if there is something easier.

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