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redonwhite

Gap between edges that are supposed to overlap exactly

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There is a bug that is a show-stopper for me right now. Affinity Designer seems incapable of rendering adjacent shapes correctly.

 

If I have two polygons with straight edges and I align their nodes precisely using snapping (or, as in the attached file, by duplicating one polygon and moving only other nodes elsewhere), resulting edges will not meet properly and some background will be seen through what seems like a pixel gap between the edges. 

 

post-35852-0-83175000-1479914322_thumb.png

This is serious as even simplest vector work actually becomes impossible in many cases!

 

Attached photo and screenshot show what I mean and compare with the exact same case in Adobe Illustrator.

 

This bug seems to persist under any combination of any values of the following settings: pixel view, retina pixel view, vector view, view quality, use precise clipping, renderer (nVidia drivers, WARP drivers), force pixel alignment, move by whole pixels. This bug persists in exported images.

 

I would consider this high priority.

clip test.afdesign


Disclaimer: I like AD and respect its creators. I only criticize it because I want to make it better.

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Well, I think I have read something about this on the forums here already, but I can't find it for of the life of me. I think I read that Affinity is doing some kind of anti aliasing that makes this happen. I have found ways to go around this problem, but I know that this isn't ideal in all cases. It tends to go away if you "Add" the two shapes together when they're close like that. Although this only works when the fill color of the two items are the same. In "Ai" there are other ways to circumvent this when it happens, as can be read here:

 

http://graphicdesign.stackexchange.com/questions/27086/a-gap-between-lines-of-joined-path-in-illustrator

 

But yes, I find it a bit obstructing at times as well. We can just wait and see if there is anything that the team can do about it.

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Of course the triangles are white in my example just for illustration purposes.

 

I think the Ai team found a solution for this. Maybe they are identifying overlapping edges and treating them as some sort of a special case.

 

Also, I know there are other threads here where people complain about AD's aliasing overlap for shapes that are on top of each other and share an edge (so both on the same side of the edge). Possibly both issues have the same solution.


Disclaimer: I like AD and respect its creators. I only criticize it because I want to make it better.

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