How to mask out text


How to mask out text

Created by jbaldsing
3 Weeks Ago
May 12, 2020 @ 4:57 pm
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Dear Friends,

I'd like to have this guy running behind the red text. I have Mocha Pro and tried to track matte in small parts i.e just the head. but it's taking ages to do this as the Magnetice Spline tool is not sticking very well so I'm having to constantly manually put it back on track. Can someone tell me there's a better way I can do this in Premiere Pro or After Effects please?

3 Weeks Ago
May 12, 2020 @ 5:58 pm

Hi jbaldsing,

Sorry, I am not sure I totally understand the question or what you are trying to do. Just to clarify do you mean you want to place the text on top of the person as seen in the screenshot? Or you want to place the text behind the person?

If it's the former you don't need any tracking - just add text on top of the video.

If it's the latter you can use Mocha to track the movement of the upper body/head with a single shape. Are you actually 'tracking' the shape? The magnetic spline does not automatically follow the movement from frame to frame - it's a tool that only helps get the initial shape set up more easily. It does not work like the rotobrush tool in AE if that's what you're expecting it to do.

I got a tutorial that explains magnetic splines and edge snapping in Mocha Pro here:

jbaldsing
3 Weeks Ago
May 12, 2020 @ 6:20 pm

I'd like the person behind the text please. Yeah I was thinking the Roto Brush might be the way to go, it's just takes a very long time on my PC. Is there a way a track matte of mask could be used in AE or Pr instead please?

3 Weeks Ago
May 12, 2020 @ 6:37 pm

The colours of the person is very close to the fence and will most likely throw off the rotobrush. 'Green screening' is also not an option because the colours are too similar.

However, the outline of the person is fairly well visible so I'd recommend using Mocha. Add a shape to the persons head/upper body and track the shape as best as you can through the movement. Then add keyframes where you need. There won't be an 'easy' option unless you reshoot the video. There'll likely always be be a bit of manual work involved unless you use an actual green screen

jbaldsing
3 Weeks Ago
May 13, 2020 @ 2:31 am

Thank you for your reply Toby

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