LydiaTheIllustrator Posted December 29, 2022 Share Posted December 29, 2022 Hi, I've been trying to get rid of these white lines that keep showing up in my art boards, where I've repeated a tile converted to a symbol with a design inside it. The repeat design itself is perfect, everything is set to pixels and theoretically matches up exactly, so I don't understand why these white lines are appearing. They don't disappear when I export as JPG or PDF. I am a surface pattern designer and love the live update feature across repeated symbols. But I can't export the repeat pattern as long as these white lines are there. I've looked around online and found many others with this issue in Affinity but can't find any conclusive way to fix it. I'm running the most recent version of Affinity and Mac OSX, so there's some sort of discrepancy in the software... Quote Link to comment Share on other sites More sharing options...
GarryP Posted December 29, 2022 Share Posted December 29, 2022 Welcome to the forums @LydiaTheIllustrator [Below, when I say 'container layer' I mean the specific layer you are converting to a Symbol which 'contains' the parts of the pattern you are wanting repeated.] The first thing to check is that the 'container layer' has all integer X/Y/W/H values before you make it into a Symbol. If you don’t do that then all of the symbols can be slightly ‘misaligned’. (Go to Preferences / User Interface and set all the Decimal Places settings to more than 3 as a further check.) The second thing to check is that the ‘container layer’ that you are converting to a symbol has no Quick Effects (or Live Filters if you have used Photo) applied to it. Various Quick Effects (and Live Filters) can make the layer larger than the layer size and that can sometimes cause trouble. Also check to see if the ‘container layer’ has a Stroke applied to it. If it does then it needs to be aligned to the inside, otherwise that will affect things. If you have rotated your symbol then it will usually be difficult to get a ‘perfect’ repeated pattern without various extra manual steps (Blend Options, giving the pattern a ‘background’, etc.) If none of this helps then if you can share the document with us we can have a look to see if we can get it looking better. firstdefence and loukash 2 Quote Link to comment Share on other sites More sharing options...
Old Bruce Posted December 29, 2022 Share Posted December 29, 2022 The best way is to toggle the x, y, w, and h up and down by using the transform panel and the arrow keys on your keyboard. While setting the preferences to show 3 or 6 or more decimal places if often mentioned it is not a solution. For Pixel accurate work: Disengage the Move by Whole Pixels in the snapping list. This is a real pain as it is on by default. Turn off snap to midpoints for any and everything that has it. In essence you want Force Pixel Alignment on and everything else off. loukash 1 Quote Mac Pro (Late 2013) Mac OS 12.7.2 Affinity Designer 2.3.1 | Affinity Photo 2.3.1 | Affinity Publisher 2.3.1 | Beta versions as they appear. I have never mastered color management, period, so I cannot help with that. Link to comment Share on other sites More sharing options...
NotMyFault Posted December 29, 2022 Share Posted December 29, 2022 (edited) In case you export as raster format, the cure is very simple: add a levels adjustment as top layer choose alpha channel set white level to 0 (zero) this will boost all semi-transparent pixels to fully opaque, keeping the color (mainly anti-aliased from neighboring pixels), but leave fully transparent areas untouched. Edited December 30, 2022 by NotMyFault Added „fully“ thomaso 1 Quote Mac mini M1 A2348 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 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. Link to comment Share on other sites More sharing options...
thomaso Posted December 30, 2022 Share Posted December 30, 2022 7 hours ago, NotMyFault said: but leave otherwise transparent areas untouched This works nicely to remove the white lines at vector edges … but how do you mean it leaves others untouched? It appears to affect any transparency, e.g. layer transparency. The upper setup is above the adjustment and not affected and thus shows the semitransparent edges in the pink squares, the lower setup shows this edge transparency only on the blue rectangle. Both blue rectangles have 75% layer opacity. – Interestingly the pink 'tool transparency' is not affected by the adjustment where objects are below – can you explain why? Quote macOS 10.14.6 | MacBookPro Retina 15" | Eizo 27" | Affinity V1 only Link to comment Share on other sites More sharing options...
NotMyFault Posted December 30, 2022 Share Posted December 30, 2022 I’ve edited my post for clarity: the adjustment keeps fully transparent areas untouched, and changes all semi-transparent areas to fully opaque. Quote Mac mini M1 A2348 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 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. Link to comment Share on other sites More sharing options...
NotMyFault Posted December 30, 2022 Share Posted December 30, 2022 8 hours ago, thomaso said: Interestingly the pink 'tool transparency' is not affected by the adjustment where objects are below – can you explain why? If you use 2 overlapping areas with 75% alpha, the blend formula will result in much higher alpha, almost opaque. Quote Mac mini M1 A2348 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 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. Link to comment Share on other sites More sharing options...
henryanthony Posted December 30, 2022 Share Posted December 30, 2022 @LydiaTheIllustratorany chance you could post an example as an image and a file? If your work is proprietary, perhaps you could make a “generic” example that illustrates the defect. I am interested because I am working on tiled patterns. I have yet to create any work thus far because I have only been working with Affinity Designer and Photo for a few days. Thanks! Quote Affinity Photo and Design V1. Windows 10 Pro 64-bit. Dell Precision 7710 laptop. Intel Core i7. RAM 32GB. NVIDIA Quadro M4000M. Link to comment Share on other sites More sharing options...
NotMyFault Posted December 30, 2022 Share Posted December 30, 2022 Older tutorial about the issue Quote Mac mini M1 A2348 LG34WK950U-W, calibrated to DCI-P3 with LG Calibration Studio / Spider 5 iPad Air Gen 5 (2022) A2589 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. Link to comment Share on other sites More sharing options...
henryanthony Posted December 30, 2022 Share Posted December 30, 2022 This seems to be a common problem. Quote Affinity Photo and Design V1. Windows 10 Pro 64-bit. Dell Precision 7710 laptop. Intel Core i7. RAM 32GB. NVIDIA Quadro M4000M. Link to comment Share on other sites More sharing options...
LydiaTheIllustrator Posted December 31, 2022 Author Share Posted December 31, 2022 Thanks everyone for your help! @henryanthony I've been playing with adding a stroke in the same background colour to the container symbol shape layer and so far that seems to be working. Just need to double check all my assets will clip to it without the stroke being applied over the top, but I think I'm on the right track... Quote Link to comment Share on other sites More sharing options...
henryanthony Posted December 31, 2022 Share Posted December 31, 2022 I've done a little research on this and found that Photoshop and other programs have the same issue. So, I guess workarounds are required. Quote Affinity Photo and Design V1. Windows 10 Pro 64-bit. Dell Precision 7710 laptop. Intel Core i7. RAM 32GB. NVIDIA Quadro M4000M. Link to comment Share on other sites More sharing options...
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