Multiple moving areas of transparency

Forum|Forum|7 years ago
November 27, 2018
2 replies
716 views

Hi folks,

I have some footage shot inside a stationary car.

I would like to make the window areas transparent to reveal stock footage of passing scenery.

Unfortunately, the car footage is handheld and has no green screen.

I can't seem to have multiple inverted areas of transparency using the opacity pen tool.

I don't think I can use a track matte as the areas of transparency are moving from frame to frame because it's handheld.

What's the simplest way to achieve the effect I'm looking for?

Thanks!

transparency area

This topic has been closed for replies.

Correct answer gerikp

Got it. You might try putting your stock scenery on Video Layer 1. Then place your interior car footage on V2 and duplicate your interior car footage on V3. Temporarily shy your V2 layer by clicking the eyeball. On your V3 layer draw your Opacity Masks but don't invert them. Now you should have the reverse of what you want. Unshy V2 layer and add the Track Matte Key from your Effects menu to this layer. In your video effects options under Track Matte Key go the drop-down menu titled "Matte" and select Video 3. Then below put a check mark in the box next to Reverse. See if that can get you any closer to what you want.

gerikp

Correct answer

Community Expert

Got it. You might try putting your stock scenery on Video Layer 1. Then place your interior car footage on V2 and duplicate your interior car footage on V3. Temporarily shy your V2 layer by clicking the eyeball. On your V3 layer draw your Opacity Masks but don't invert them. Now you should have the reverse of what you want. Unshy V2 layer and add the Track Matte Key from your Effects menu to this layer. In your video effects options under Track Matte Key go the drop-down menu titled "Matte" and select Video 3. Then below put a check mark in the box next to Reverse. See if that can get you any closer to what you want.

Rich_S_UKAuthor

Participating Frequently

Spot on! Brilliant! I knew there must be a way.

Thank you for your time and expertise.

Rich_S_UKAuthor

Participating Frequently

Bump!

I can't believe this isn't possible in PP!

There must be someone here with enough experience to suggest a workaround?

gerikp

Community Expert

This would be a lot easier to do in Adobe After Effects.

Rich_S_UKAuthor

Participating Frequently

Unless you have several camera angles and need the multicam option.

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