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12741: Circle TOP Softness

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12741: Circle TOP Softness

Postby elburz » Fri Jan 26, 2018 5:11 am

If you have a Circle TOP with a radius of 0, you will still see a circle if you increase the softness. It makes it difficult to create animated mattes using it for things like transitions.

12741, 64 bit, Windows
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Re: 12741: Circle TOP Softness

Postby rob » Wed Feb 14, 2018 10:39 pm

Interesting case.
However it looks like softness bleeds before and after the radius, so its consistent with a radius of zero.
This might require a new option on how to apply the softness, in this case strictly within the radius.
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Re: 12741: Circle TOP Softness

Postby DavidBraun » Thu Feb 15, 2018 11:35 am

Here's a semi-useful tox in the interim. It has softness but when radius is zero you don't see anything.
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circle_soft_matte_animation.tox
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Re: 12741: Circle TOP Softness

Postby greg » Thu Feb 15, 2018 12:19 pm

nice example. we're considering it all.
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Re: 12741: Circle TOP Softness

Postby elburz » Fri Jun 29, 2018 10:25 am

+1 same issue again and forgot I had posted about it already.

Regardless of the math functioning correctly or not, it's a UX bug to have a circle of size 0,0 still be visible. David's shader implements what I think most users would expect to have happen a size and softness slider.
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