Rotate a clipping mask

New Here ,
Feb 16, 2022 Feb 16, 2022

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I have a project with a rotating gear which I can animate easily enough through rotation keyframes, but the gradient metal fill rotates with it. I'd like to keep that stationary to achieve the right look (the glare of the light wouldn't rotate with the gear).

 

I thought the easiest way would be to place a circle gradient behind a rotation-animated gear-shaped clipping mask. From searching Google, YouTube, and this forum, it seems there's not an easy way to animate the rotation of a clipping mask.

 

What's the proper approach for this? I've attached the AE file.

 

I tried to also attached the Illustrator file, but received this error The attachment's gearanimation.ai content type (application/postscript) does not match its file extension and has been removed. If that would help, I could share that another way as well.

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correct answers 1 Correct answer

Adobe Community Professional , Feb 16, 2022 Feb 16, 2022
There's an easy enough way to do it if you look up the correct terminology. It's called a track matte. I suggest you actually read the AE online help... Mylenium

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Adobe Community Professional ,
Feb 16, 2022 Feb 16, 2022

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There's an easy enough way to do it if you look up the correct terminology. It's called a track matte. I suggest you actually read the AE online help...

 

Mylenium

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New Here ,
Feb 17, 2022 Feb 17, 2022

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Mylenium,

Thank you. I did stop to investigate track mattes, but determined it wasn't what I needed. A second look (based on your suggestion) and I got it working (I think I had the layers out of order).

 

Also, when you say "actually read the AE online help" are you referring to this https://helpx.adobe.com/after-effects/user-guide.html? You see, the problem is not my lack of want to research and educate myself. I came here looking for the right terms and approach.

 

Again, thank you.

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Adobe Employee ,
Feb 17, 2022 Feb 17, 2022

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Hi AbodeGoody,

 

Thanks for writing in.

As you mentioned, I was able to open the project but couldn't understand what's happening because the footage is missing. A screenshot of your Illustrator file would give us a better idea.

Looking forward to your response.

 

Thanks,

Nishu

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New Here ,
Feb 17, 2022 Feb 17, 2022

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Nishu,

Thank you.

GearAnimationScreenshot.PNG

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