Mouse Posted March 15 Share Posted March 15 Hi I'm drawing a large set of fantasy mapping assets using Affinity Designer. This is part of a sheet of various weapons in the collection. I'm having an issue with the very fine point of this polygon on the poleaxe spear point, which vanishes into a black line more and more as you zoom out. Zoomed in, it looks like this I'm drawing these images much larger than they need to be in order to get the detail correct without too much fiddling around, but when I scale them down to the correct size when I export the poleaxe I get that same black line where the tip of that polygon has vanished. In this screen shot (below) the first image is the full scale export from Affinity. The second one is the scaled export direct from Affinity, and the third one is the one I reduced in GIMP from the first full scale Affinity export. And here are the export settings I used when exporting the scaled image (centre above) directly from Affinity. Please can someone help? What am I doing wrong? Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted March 15 Share Posted March 15 Can you upload the source adphoto document (only the axe) in full resolution? The preview app resamples files again when zoomed, blurring the rendering, try to compare them when opened in Affinity Photo, and use exactly 400%. The exported png has structures of 1px width, so pixel alignment can dramatically change the result. Unfortunately Affinity has no tool to inspect export results in realtime (e.g. changing size or resample mode), and export preview does not give exact results. Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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...
Mouse Posted March 15 Author Share Posted March 15 It's an AD file. I hope that's ok? I rarely work in Photo unless I have to deform a bitmap. Poleaxe 01.afdesign Quote Link to comment Share on other sites More sharing options...
Mouse Posted March 15 Author Share Posted March 15 This is the 400% zoom of the full scale original This is the 400% zoom of the version I scaled during export from Affinity And this is the one I scaled down in GIMP from the full size export. Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted March 15 Share Posted March 15 Please try merge visible, then hide lower layers, before export. when I remember it correctly Affinity has a „special“ way to handle export with resizing and layer blending / resampling: each layer gets resized individually in the target resolution, then all gets blend together. Unfortunately this can lead to different results. Using merge visible before export ensures what you see gets resized and exported. As you document contains partial transparency, the lower layer would shine through and darken semi transparent areas. Mouse and thomaso 2 Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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...
Mouse Posted March 15 Author Share Posted March 15 Here is the result of exporting a scaled png after merging everything. It's good, but I need to keep the originals as they are, not merged. For now it is easier for me export at full size and scale in GIMP. Do you know if there are any updates planned for the way scaling is done during export? Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted March 15 Share Posted March 15 A big issue or resizing to 10% of original size is that resampling will factor in only very few pixels from the original image. From 10x10=100 only 1 pixel will survive, and the colors will not consider all 100 source pixels, but a weighted sum of max 9 neighboring pixels. This can lead to drastic color shift, you get many different results by simply shifting your grouped layers to different pixel positions. Other apps may handle export with resizing differently (better) than Affinity. Affinity does a good job for factors 2-4, resizing above those factors is very tricky. Merge visible helps in most cases. Mouse 1 Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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...
Mouse Posted March 15 Author Share Posted March 15 Thanks for your help NotMyFault Quote Link to comment Share on other sites More sharing options...
NotMyFault Posted March 15 Share Posted March 15 23 minutes ago, Mouse said: It's good, but I need to keep the originals as they are, not merged. merge visible does not harm the original layers, they stay full intact and untouched. Simply delete the temporary pixel layer when done. Mouse 1 Quote Mac mini M1 A2348 | Windows 10 - AMD Ryzen 9 5900x - 32 GB RAM - Nvidia GTX 1080 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...
lacerto Posted March 16 Share Posted March 16 Try using "Scale with Object" property on your Outline FX: UPDATE: Just tried it myself: unfortunately does not help... Quote Link to comment Share on other sites More sharing options...
Mouse Posted March 16 Author Share Posted March 16 Thanks for trying, lacerto Quote Link to comment Share on other sites More sharing options...
lacerto Posted March 16 Share Posted March 16 19 minutes ago, Mouse said: Thanks for trying, lacerto That was a sad try as I later noticed that I had somehow managed to turn off scaling of all FX applied in the design myself, before turning them back on 🙂 Mouse 1 Quote Link to comment Share on other sites More sharing options...
Mouse Posted March 16 Author Share Posted March 16 26 minutes ago, lacerto said: That was a sad try as I later noticed that I had somehow managed to turn off scaling of all FX applied in the design myself, before turning them back on 🙂 A lifetime of experimentation is how I got to where I am, so I appreciate it when others add their effort to mine. lacerto 1 Quote Link to comment Share on other sites More sharing options...
lacerto Posted March 16 Share Posted March 16 Trying e.g. Lighten Blend Mode could be an acceptable workaround: Lighten.mp4 Mouse 1 Quote Link to comment Share on other sites More sharing options...
Mouse Posted March 16 Author Share Posted March 16 Ah, now that might work out, though it is a bit odd that the quality of the result relies so much on the blend mode being used on an effect. Thanks again for your help lacerto 1 Quote Link to comment Share on other sites More sharing options...
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