I have come across something that I'm at a loss to understand whether it is my inexperience or a bug.
When layering video clips with composite transitions I found that the composite transition was colouring the video ever so slightly green.
I have a test example here: http://img442.imageshack.us/img442/7240/kdenlivegreencomposite.png that shows six concurrent pure white colour strips with composite transitions, and as the monitor window shows, the composite strips have stacked up to create a distinctive green hue.
This has affected a video I am working on which consists largely of two strips in split-screen with white backgrounds, and in some cases several layers with the three top layers being arrows pointing at various locations on-screen. This tinges the video a noticeable hue of green.
Is this a bug, or have I made a noob mistake?
Thanks yellow - I knew I had forgotten something, but could not remember what! Old age is creeping up on me...
I *was* using Kdenlive 0.9.2. and an unknown (by me) version of MLT, but have now upgraded to Kdenlive 0.9.3 and MLT 0.8.7, and sadly the problem persists.
Having taken your advice, I perused the offerings of Mantis, and behold the oracle she spoke! The bug is here: http://www.kdenlive.org/mantis/view.php?id=2759
The solution is quite simple: use the affine transition instead. It appears to do exactly the same thing, but with 100% alpha instead of the slight green tinge.
Incidentally, where is the correct place to inform the developers that a) Kdenlive seriously rocks and b) whoever got the ShuttleXpress working deserves a medal.
Cheers!