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Converting the negative space of a shape layer into its own layer?

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Joe Richardson
Converting the negative space of a shape layer into its own layer?
on Feb 18, 2019 at 6:01:02 am

I'm trying to use shapes to create mattes. I was hoping there was a way to immediately highlight the negative space that a shape layer makes as its own layer.

Example: https://i.imgur.com/z4KmVFK.png

I want to be able to make the 1 shape in the middle, and then have access to the left and right space as shapes or masks that I can individually move and use as a matte.


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Richard Garabedain
Re: Converting the negative space of a shape layer into its own layer?
on Feb 18, 2019 at 5:55:18 pm

simple example..use masks instead of shapes and problem solved


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Oleg Pirogov
Re: Converting the negative space of a shape layer into its own layer?
on Feb 18, 2019 at 11:31:50 pm

Possibly, you may wanna try Merge Paths.

Get a shape:


Duplicate and add background to the second shape layer:


And Merge Paths to Contents:


Set mode to Subtract and probably get something close to what you've wished for:


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Joe Richardson
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 5:09:34 pm

Oh, dang that's really cool. I'll try that!


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Kevin Camin
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 5:58:33 am

What are you trying to do?

Best regards,

Kevin Camin


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Joe Richardson
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 5:11:06 pm

Something like, I wanna draw a shape layer of any type, and be able to select the "space" that isn't a shape layer.

Say if I draw an "X" on my Comp, I want to be able to select the 4 quadrants that make up the empty space in the letter/shape, and use them as mattes.


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Kevin Camin
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 5:18:41 pm

Oh, just duplicate your shape layer and then, whatever you are trying to add to the negative space, set it to Alpha Matte Inverted below the duplicate shape layer and make sure the duplicate shape layer is hidden (turn off eyeball).

Best regards,

Kevin Camin


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Joe Richardson
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 5:41:51 pm

Yes, that works, but I wanted to move the layers behind the negative space to have multiple copies.

https://i.imgur.com/uTJF0Rj.png


In this case, the negative space is one layer, so I guess I can use 1 comp for each "negative". In this case, I'll have 4 Comps -- one for each blank spot -- and then another comp for the middle text.

Thanks!


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Michael Szalapski
Re: Converting the negative space of a shape layer into its own layer?
on Feb 19, 2019 at 7:16:25 pm

You can have mask paths and shape layer paths follow each other with expressions. So, if you set your mask to follow the shape layer's path, you could use that.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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