Created attachment 122289 [details] capture SUMMARY If you make sharpen filter layer or mean removel filter layer, some lines appear over the canvas, as if the canvas is devided into tiles. STEPS TO REPRODUCE 1. make a document and make any color-filled layer. 2. make sharpen filter layer or mean removel filter layer over it. OBSERVED RESULT lines appear. EXPECTED RESULT no lines. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION It doesn't seem happen when you make the document from existing image file.
Hm, I cannot reproduce that. What size is the image you're working on, and in which color model/channel depth?
Happens with all sizes, and the color setting is just default. Model : RGB/Alpha Depth : 8-bit integer/channel Tiles are reletively bitter with small sized documents though.
Okay... I still cannot reproduce on Linux or on Windows (didn't check macOS). Could you attach the output of help/system information for bug reports as well? Maybe there's something about your hardware that makes krita choose a different convolution implementation...
(In reply to acc4commissions from comment #2) > > Tiles are reletively bitter with small sized documents though. * bitter -> bigger (In reply to Boudewijn Rempt from comment #3) > Okay... I still cannot reproduce on Linux or on Windows (didn't check > macOS). Could you attach the output of help/system information for bug > reports as well? Maybe there's something about your hardware that makes > krita choose a different convolution implementation... SESSION: 22 Aug 2019 21:58:23 +0900. Executing C:\Program Files\Krita (x64)\bin\krita.exe WARNING: This file contains information about your system and the images you have been working with. If you have problems with Krita, the Krita developers might ask you to share this file with them. The information in this file is not shared automatically with the Krita developers in any way. You can disable logging to this file in Krita's Configure Krita Dialog. Please review the contents of this file before sharing this file with anyone. Krita Version: 4.2.5 Languages: en_US Hidpi: false Qt Version (compiled): 5.12.4 Version (loaded): 5.12.4 OS Information Build ABI: x86_64-little_endian-llp64 Build CPU: x86_64 CPU: x86_64 Kernel Type: winnt Kernel Version: 6.1.7601 Pretty Productname: Windows 7 SP 1 (6.1) Product Type: windows Product Version: 7sp1 Hardware Information GPU Acceleration: auto Memory: 16351 Mb Number of Cores: 8 Swap Location: C:/Users/Waterbird/AppData/Local/Temp 22 Aug 2019 21:58:38 +0900: Created image "Unnamed", 4960 * 3508 pixels, 72 dpi. Color model: 8-bit integer/channel RGB/Alpha (sRGB-elle-V2-srgbtrc.icc). Layers: 1 22 Aug 2019 21:58:38 +0900: Instant Preview Setting: 0 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Enabled simple smoothing. 22 Aug 2019 21:58:38 +0900: Instant Preview Setting: 0 22 Aug 2019 21:58:39 +0900: Instant Preview Setting: 0
Thanks for your comment! Automatically switching the status of this bug to REPORTED so that the KDE team knows that the bug is ready to get confirmed. In the future you may also do this yourself when providing needed information.
I cannot reproduce this one either on 4.2.5 (macOS)
I tried to disable the fftw3 convolution system to see whether the fallback would cause this issue, and that didn't reproduce it either. I don't see anything weird about your log either :-(
I have been able to reproduce it, it has to do with opaque canvas background. Steps to reproduce: 1) Open a "Create new document..." dialog 2) Choose a resolution is larger than 512x512, e.g. 1600x1200 3) In the Content tab, chose "canvas color" instead of the default "as raster layer" and go with the default white background color 4) After creating the document, fill the empty layer with some light color (not black) 5) Add a sharpening filter layer You should now see grid lines every 512 pixels
Thanks! With those steps I can reproduce and confirm the bug.
Um... This seems to happen with the raster layer background settings too. (Both 4.2.7, Nightly git 56ee905)
*** Bug 412492 has been marked as a duplicate of this bug. ***
And also happen with emboss.
Git commit 8c5cf8df4b8b165dfe55944216a057c49c72e203 by Dmitry Kazakov. Committed on 14/10/2019 at 15:52. Pushed by dkazakov into branch 'master'. Fix legacy convolution filters on images with non-transparent background All convolution filters should have neededRect adn changedRect. They worked previously only due to a happy mathematical coincidence :) M +18 -0 plugins/filters/convolutionfilters/kis_convolution_filter.cpp M +4 -0 plugins/filters/convolutionfilters/kis_convolution_filter.h M +15 -0 plugins/filters/imageenhancement/kis_simple_noise_reducer.cpp M +4 -0 plugins/filters/imageenhancement/kis_simple_noise_reducer.h https://invent.kde.org/kde/krita/commit/8c5cf8df4b8b165dfe55944216a057c49c72e203
Git commit a95b18776c784bbf3156176edf19ebd78c0eb1ac by Dmitry Kazakov. Committed on 05/11/2019 at 17:18. Pushed by dkazakov into branch 'krita/4.2'. Fix legacy convolution filters on images with non-transparent background All convolution filters should have neededRect adn changedRect. They worked previously only due to a happy mathematical coincidence :) M +18 -0 plugins/filters/convolutionfilters/kis_convolution_filter.cpp M +4 -0 plugins/filters/convolutionfilters/kis_convolution_filter.h M +15 -0 plugins/filters/imageenhancement/kis_simple_noise_reducer.cpp M +4 -0 plugins/filters/imageenhancement/kis_simple_noise_reducer.h https://invent.kde.org/kde/krita/commit/a95b18776c784bbf3156176edf19ebd78c0eb1ac