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Background from mask is visible as 1px outline


meefox

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Masked shape is not completely overflow main object. 

Using square as masked object produces 1px outline from mask background.

1) create mask with red background

2) use a square with darker color square as a symbol masked by object above (Curve)

 464190799_Screenshot2021-11-07at16_26_13.png.b300bd2b47fac4f078931ddf361ce613.png 

2) observe outline of 1px, this is background from mask (Curves), better is visible on dark canvas

598758147_Screenshot2021-11-07at16_22_20.png.a940b547af4b90916b3e3328b28f731d.png

But it should be filled up by one color.

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Hi meefox,

Unfortunately what you're seeing is a common problem with vector objects and shapes when they're clipped. Its caused by the anti-aliasing being applied to the edges. There is an Anti-aliasing option inside the Blend Ranges dialog to control this, which will allow you to remove the fringing.

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45 minutes ago, meefox said:

Thank you, for this option, but I noticed without AA edges looking very harsh.

top - AA off

bottom - just simple a shape with AA

Is it possible to still have AA?

 

The workaround I have been using for this (at least I think this is the same use case) is to use the shape as a layer mask instead of clipping.  Its not as versatile, but it can be a useful work around.

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On 11/7/2021 at 3:32 PM, meefox said:

Masked shape is not completely overflow main object. 

Using square as masked object produces 1px outline from mask background.

1) create mask with red background

2) use a square with darker color square as a symbol masked by object above (Curve)

 464190799_Screenshot2021-11-07at16_26_13.png.b300bd2b47fac4f078931ddf361ce613.png 

2) observe outline of 1px, this is background from mask (Curves), better is visible on dark canvas

598758147_Screenshot2021-11-07at16_22_20.png.a940b547af4b90916b3e3328b28f731d.png

But it should be filled up by one color.

Any chance you can upload the afphoto / afdesign file?
 

Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080

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Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

 

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