https://bugs.kde.org/show_bug.cgi?id=404133

            Bug ID: 404133
           Summary: Artifacts when painting in RGB 32-bit float/channel
           Product: krita
           Version: nightly build (please specify the git hash!)
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Brush engines
          Assignee: krita-bugs-n...@kde.org
          Reporter: manuel.snudl.zeid...@gmail.com
  Target Milestone: ---

Created attachment 117943
  --> https://bugs.kde.org/attachment.cgi?id=117943&action=edit
Exported image showing artifacts

I attached an image to illustrate. The .kra file is beyond the size limit. I
only used paint and fill layers with normal blend mode.

Visual artifacts occur in the nightly appimage when painting in RGB 32-bit
float - not however in 16f, 16i or 8i and also not in LAB, CYMK, XYZ or
Grayscale in any combination. It is most obvious with a pixel engine brush
using wide spacing, but also occurs with the particle brush and the tangent
normal brush. The tangent normal brush seems to be an exception, here the
artifacts seem to apply once per painted brush tip instead of aligning to the
canvas. I didn't notice it with the shape, sketch or color smudge engines.

In 4.1.7 this problem didn't occur using the same file.

  Version: 4.2.0-pre-alpha (git b8d64d3)

Qt

  Version (compiled): 5.10.0
  Version (loaded): 5.10.0

OS Information

  Build ABI: x86_64-little_endian-lp64
  Build CPU: x86_64
  CPU: x86_64
  Kernel Type: linux
  Kernel Version: 4.20.7-1-MANJARO
  Pretty Productname: Manjaro Linux
  Product Type: manjaro
  Product Version: unknown

OpenGL Info

  Vendor:  NVIDIA Corporation 
  Renderer:  "GeForce GTX 860M/PCIe/SSE2" 
  Version:  "4.6.0 NVIDIA 415.27" 
  Shading language:  4.60 NVIDIA 
  Requested format:  QSurfaceFormat(version 3.0, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize -1, greenBufferSize -1, blueBufferSize -1, alphaBufferSize -1,
stencilBufferSize 8, samples -1, swapBehavior
QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace
QSurfaceFormat::ColorSpace(DefaultColorSpace), profile 
QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile)) 
  Current format:    QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 0,
stencilBufferSize 8, samples -1, swapBehavior
QSurfaceFormat::SwapBehavior(DoubleBuffer), swapInterval 0, colorSpace
QSurfaceFormat::ColorSpace(DefaultColorSpace), profile 
QSurfaceFormat::OpenGLContextProfile(CompatibilityProfile)) 
     Version: 4.6
     Supports deprecated functions true 
     is OpenGL ES: false 

Hardware Information

  GPU Acceleration: auto
  Memory: 15951 Mb
  Number of Cores: 8
  Swap Location: /tmp

-- 
You are receiving this mail because:
You are watching all bug changes.

Reply via email to