https://bugs.kde.org/show_bug.cgi?id=444439
--- Comment #3 from M <manuel.snudl.zeid...@gmail.com> --- Right, so I did some more testing. First, I could not reproduce the problem that basic blending operation I know can algorithmically handle HDR color values would clip them, such as Addition, or Multiply and Normal with values above 1.0. I found is that the Specific Color Selector could show the values clipped at 1.0, but the Foreground color selector window shows the correct channel values, and that picking an HDR color from a palette would also paint a clipped or somehow tone-mapped version of the color. That would tie back to https://bugs.kde.org/show_bug.cgi?id=437429 So unless I can reproduce what I thought was happening initially, I'm assuming I was mislead by the number readouts and those blending modes are not affected. What I can confirm however is that certain color space conversions will clip color values to 1.0, possibly between linear and non-linear profiles. This is not exclusive to Krita 5.1, I can reproduce it the same way in 4.4.8 on Windows, but curiously 4.4.8 on Linux doesn't seem to have the issue. It might be a Windows specific bug, but not a regression to Krita 5.1. To reproduce on a Windows build: 1. Create a document in 16 or 32-bit float and ACEScg-g10 2. Produce some HDR color values on the canvas and merge down all layers 3. Verify from the Foreground color picker that any color channel is way above 1.0 4. Use Image > Convert Image Color Space. Leave the bit depth, choose sRGB-srgbtrc (not linear). Rendering intent can optionally be relative colorimetric 5. Check the colors on canvas again in the Foreground color picker The colors on canvas should now be clipped at 1.0. Some 16-bit float conversions seem to be more robust, but most combinations will still result in clipping on my end. You can also try the conversion result of negative float colors from Subtract. Though none of the color pickers seem to indicate negative values. -- You are receiving this mail because: You are watching all bug changes.
