Gaussian Blur (and maybe others?) creates artefacts when using it with 32-bit float documents. Example: https://dl.dropboxusercontent.com/u/21559589/krita-bug/1.png (unblurred image) https://dl.dropboxusercontent.com/u/21559589/krita-bug/2.png (gaussian blur dialog with preview on, note how the image is weirdly desaturated) https://dl.dropboxusercontent.com/u/21559589/krita-bug/3.png (more drastic artefacts) When applying the filter, the artefacts actually appear in the document, so this is not just a visual issue with the filter preview. The colorspace used was scRGB, but I seem to be able to re-produce similar-looking errors with other colorspaces. Example document to re-produce the issue (simply run a gaussian blur filter over it and mess around with the radius sliders for a while): https://dl.dropboxusercontent.com/u/21559589/krita-bug/gaussian-blur-bug.kra In particular, moving the radius sliders down to zero and then back up to some non-zero value seems to produce very strong artefacts. Reproduced with a build from the latest calligra/2.9 branch. Reproducible: Always
yeah, this has been broken since the multiple transform masks handling back in... march?.
Hi Jonathan, Can you please check if this bug is still reproducible in the latest version of Krita. The files that you have linked have expired so i couldn't check it with your test file. I tried to do a gaussian blur on a 32 bit float image but all seemed okay for me. For now i am going to close this bug report due to lack of reply and activity, if you think this bug is still present please feel free to re-open the bug report and also please attached the kra file here it self. thank you