Blur the hole

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Jkoseattle
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Blur the hole

Post by Jkoseattle » Sun Dec 29, 2019 6:01 pm

I am trying to spotlight an area of the screen by gradually dimming everything else. I have created a shape that covers the whole screen but has a hole in it where the highlight needs to be. My plan is to animate the opacity of this shape, and the hole in the shape will act like a highlight as the shape's opacity increases. I have set a blur radius on this shape, but the blur is only operating on the outside of the shape, and ignores the hole. How should I do this instead?
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Maestral
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Re: Blur the hole

Post by Maestral » Sun Dec 29, 2019 7:56 pm

Have you tried with the black gradient, from 0 (centre) to 100 transparency at the 'edge' of the 'hole'?
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synthsin75
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Re: Blur the hole

Post by synthsin75 » Sun Dec 29, 2019 8:36 pm

Jkoseattle wrote:
Sun Dec 29, 2019 6:01 pm
I have set a blur radius on this shape, but the blur is only operating on the outside of the shape, and ignores the hole. How should I do this instead?
If you only have one shape with a hole in it, soft edge or layer blur both blur the hole as well as the outer edge of the shape. So I have to assume there's something odd in your hole construction.
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Jkoseattle
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Re: Blur the hole

Post by Jkoseattle » Tue Dec 31, 2019 6:32 pm

Thanks! Using a gradient works instead, adding holes to shapes is one of those many moho things that you have to do exaaaaactly right or it won't work right, and I'm not in that head space right now.

Anyway, I did the gradient and then decided it was a dumb idea anyway, go figure.
Most of the time I'm doing music stuff. Check me out at http://www.jimofseattle.com/music.

Thing I did for work: https://www.youtube.com/watch?v=LgFYGqifLYw
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