White lines between shapes Affinity Designer

[ceocan]

I'm having a problem with shapes in Affinity Designer. Whenever I snap two shapes together there will be a line between those shapes. It is visible in Affinity Designer itself and on the exported images. I tried to make a pattern with symbols and the problem also occurs. I've searched the forum and internet to solve this problem, but there isn't one that works for me. From what I'm getting this is a bug in the software that's been in Affinity Designer for years now. When will this be solved? I expected that V2 would have dealt with the problem but it didn't unfortunately.

[NotMyFault]

This might help.

 

[NotMyFault]

You can avoid the issue, but this requires very careful planning and execution:

• Use pixel view to inspect if seams are visible
• use transform panel, with decimal digits set to 6, to inspect position, and size to be integer (not fractional)
• Use helper rectangles to perfectly cut off layers at integer boundaries (by masking or clipping)
• Activate snapping, force pixel alignment, deactivate move by whole pixels
• carefully inspect nested layers: every level must be pixel-aligned.

 

[NotMyFault]

left: seamless. right: your version.

You need to zoom to 50% or 100%, other zoom levels show a non-existing seamline. export to PNG shows no seam. 

seamless pattern.afdesign

[ceocan]

49 minutes ago, NotMyFault said:

You can avoid the issue, but this requires very careful planning and execution:

• Use pixel view to inspect if seams are visible
• use transform panel, with decimal digits set to 6, to inspect position, and size to be integer (not fractional)
• Use helper rectangles to perfectly cut off layers at integer boundaries (by masking or clipping)
• Activate snapping, force pixel alignment, deactivate move by whole pixels
• carefully inspect nested layers: every level must be pixel-aligned.

 

Thnx for the tips. I tried to use them, but I can't seem to get it right. I must be doing something wrong. Could you post a video how you did it, so that I can compare it with the way I did it?

[Pšenda]

46 minutes ago, ceocan said:

Could you post a video how you did it, so that I can compare it with the way I did it?

Alternatively, you can insert your *.afdesign file here.

[ceocan]

8 hours ago, Pšenda said:

Alternatively, you can insert your *.afdesign file here.

You're right. Here it is.

pattern white lines.afdesign

[Pšenda]

Object position and size must be "pixel" perfect, not "mm" perfect.
  vs 

Edit: try change document unit to pixels (in Document setup, or top/left corner on Ruler).

Edited March 10, 2023 by Pšenda

[ceocan]

This fixed the problem. Many thnx to the both of you! Kinda funny that such small things can solve such big problems. Been busy with it for hours.