https://bugs.kde.org/show_bug.cgi?id=359160

wegwerf-1-...@gmx.de changed:

           What    |Removed                     |Added
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                 CC|                            |wegwerf-1-...@gmx.de

--- Comment #1 from wegwerf-1-...@gmx.de ---
I'm under the impression that this is a general problem with the transparent
track mechanism. You could verify this by switching all tracks to opaque and
then adding classic composite transitions to tracks 1 and 2. This should show
the same effect as you've shown in your video. I think that this comes due to
the fact that track 1 is composited with 2 ... and that's already wrong. It
should be composited to track 3 instead.

The existing transparent track mechanism could be fixed: for each transparent
track, find the nearest track below that's opaque. Only this will set up the
composition pipeline as intented. The current implementation isn't exactly
correct for three and more transparent tracks stacked onto each other. Maybe
the algorithm I outlined above can help?

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