But for now it seems to work fine, so that's all that counts for now I really hope we don't always have to do it like this. So the output of the merge node now always returns a keyable signal: a clip with a blue background OR only a blue background when the playhead is on a gapĤ) When I feed this signal into the DeltaKeyer and cleanplate it has the expected output: the keyed out signal or transparent, when the playhead is on a gap. And put a chromakeyable blue background on the background of the merge node. but none is working so far.ġ) The media in is the fusion clip, so a timeline with some fragmented clips on it, each having a blue background that needs to be keyed out, but in between clips there is nothing, which fusion somehow interprets as black instead of transparentĢ) So after the media-node I place a Lumakeyer to filter the black out and convert it to full transparent.ģ) If I put this signal to the chromakeyer still it outputs black when it receives full transparant signals (crazy), so I feed the output of the lumakeyer (which is a clip with a blue background OR transparent when there is a gap) to a merge node as a foreground. I also tried channel booleans like the OR to pick one or the other signal, so pick a blue background to key on when there is no signal, or pick transparent or a keyed output. Merge also does output black when one of the signals is gone.

But this is a pretty strange workflow to me, or indeed a bug. First I try to put a blue layer on the background of a merge node than to keep the chromekey 'alive' to return a transparent signal. Hope I don't have to keyframe all gaps out to prevent black outputs. I have all kinds of very small fragmented clips all needing chroma keying, so I figured instead of keying all small clips individually, it would make more sense and speed things up, to create a few layers (some clips need to overlap) in the form of fusion clips, containing all those small parts being on the same layer.Ĭan't believe I'm the only one using it this way and this is really a bug. Thanks for your quick response I would think that if there is no input at the start of a node, that should be seen as a fully transparent signal and therefore always output a fully transparent signal as well, so just bypass the deltakeyer and return a fully transparent signal.

Chroma key davinci resolve 15