Bug: Artifacts in documents with linked or embedded documents with a clipping mask.

[erdi12]

If a document is linked or embedded with a clipping mask in a base document, 
pixels that should actually be hidden appear at the edges of the inserted document. 
My guess is that these artifacts arise from converting the resolution to the target document. Example is attached.
Affinity Photo 2.5.7

Test2.afphoto

[Hangman]

Hi @erdi12,

1 hour ago, erdi12 said:

If a document is linked or embedded with a clipping mask in a base document, pixels that should actually be hidden appear at the edges of the inserted document.

You perhaps need to check the edges of your embedded document...

[lepr]

Not a bug.

The embedded document is 850.393701 x 566.929134 pixels, but the black region of the mask inside it is precisely 850 px x 566 pixels, which leaves visible slivers of the right edge and bottom edge of the masked object. There are various solutions, one of which is cropping the embedded document's canvas to precisely 850 x 566 px.

[erdi12]

Thanks, where can I see such precise document dimension?

 

[lepr]

The displayed precision of each unit of measurement can be adjusted in the UI section of the app Preferences/Settings.

In Affinity Photo, only the Crop Tool will show the real size of the canvas, as far as I know. For example, the Pan Tool (hand icon) will display the size rounded down to whole pixels.

In Affinity Designer and Affinity Publisher, the Document Setup will show the real size of the page/canvas.