Simple video mixing question in touchdesigner

Beginners
1

Hi all, I’m very new to Touchdesigner, I ran into an issue that, I greenscreened a figure from a video and applied effects in TD, now I want to fill the transparent area with original video.
I used a ‘Over’ node to piece two videos but the videos are not synced? (screenshot attached).

Screenshot 2023-02-21 at 5.12.17 PM
Screenshot 2023-02-21 at 5.12.17 PM1920×1192 122 KB

I wonder is there any way to make sure two videos both start from the beginning? Maybe I’m using a wrong node?
Any thoughts would be very appreciated!!! Thanks you all so much!!

2

Hi @FriedriceDQ,

instead of using a new Movie File In TOP, connect the original Movie File In TOP to the second input of the Over TOP.

For syncronizing two different videos in 2 seperate Movie File Ins, you could export the value of a Button COMP to the Cue Pulse parameter of both Movie File Ins.

Hope this helps
Markus