Hello,
I have a png file with a small object in the center and transparency around.
I would like to make it appear/disappear with a kind of "wipe effect".
Problem is that the wipe effect starts from the edge of the picture, not from my object border.
Is there a way to use the crop effect with some key frames ?

Thanks for your tips !

Try with one of the Alpha/Transform effects like Vignette effect.

You can also use the composite transition with your preferred wipe and set the keyfranes how you want them

Hello,
I have played with alpha transform and composite transition during about an hour without success.
Could it be because I am using version 18.12 ?
I read that the transition and effect functions have been cleaned up in 19.04...

I use 18.12 so it's not that (I'm actually not sure you can do what i think about with 19.04). Could you send a screenshot of what you're trying to do ?

Arkengheist wrote:I use 18.12 so it's not that (I'm actually not sure you can do what i think about with 19.04). Could you send a screenshot of what you're trying to do ?

Hi,
I could't upload my drawing so I will try to explain instead:

Lets assume a clip 1 like this :
[ A B C ]
A is the left area of the clip, B the middle area and C the right area.

I would like a transition with a second clip that would :
- keep A and C area from clip 1
- wipe the B area only, clip 2 is cropped and the wipe starts from B area edges, not A or C

Thanks for your help

I'm not sure i understand what you want to do but maybe this can help : https://youtu.be/ummKyRQDtrQ

Arkengheist wrote:I'm not sure i understand what you want to do but maybe this can help : https://youtu.be/ummKyRQDtrQ

I managed to achieve what I wanted by the use of the Rotoscoping effect.
Thank you for the link !