I am not completely newbie on kdenlive however, when I use the rotoscoping effect (masking) it gets really frustrating because it seems that the mask i create keeps on changing and contorting as the clip goes.
No problem if it is a straight line, door, or road but when it’s all twisted and I have to add many keyframes things get twisted.
I will try to explain it better.
I have a contorted path that I would like to mask and make an effect as if the highlighted route moves as the clip goes so, I choose a few initial keyframes, then I scroll forward (at the moment I am going 5 keyframes at times). It seems to do what I expect.
I scroll back a few tens keyframes and i adjust where necessary but then, for some weird reasons, the original mask has changed shape and there are more (lots more) keyframes to be added/changed.
It seems that the mask has some magnetic re-shaping every time I change or add a new keyframes in between the ones I have already placed. Let’s say I have a square mask with 8 keyframes, one every 5 flip-frames; i add on keyframe and the mask become a rhomboid and even if i delete the last added keyframe the shape of the mask remains all twisted.
It’s really frustrating because when I think i am finished, I add/change one or two keyframes and I have to start almost everything again.
I am trying to mask a clip of about a thousand keyframes and from the initial 150-200 rotoscopy points that I was calculating, I am ending up almost with a 900 rotoscopy-points (one-by-one)
Am i missing some settings to avoid the mask reshaping/changing every time I make adhustments?
What am I doing wrong?
Thanks in advance