https://bugs.kde.org/show_bug.cgi?id=444919
Bug ID: 444919 Summary: Big size brush become more stutter on Direct3d 11 via ANGLE Product: krita Version: 5.0.0-beta2 Platform: Microsoft Windows OS: Microsoft Windows Status: REPORTED Severity: normal Priority: NOR Component: OpenGL Canvas Assignee: krita-bugs-n...@kde.org Reporter: ss93...@gmail.com Target Milestone: --- Created attachment 143188 --> https://bugs.kde.org/attachment.cgi?id=143188&action=edit Beta1 and Beta2 comparison Direct3D via ANGLE SUMMARY When performing fast brush stroke using Big brush, especially with brush tips, will cause the brush outline and stroke being more stutter than in Beta1 when Canva Acceleration is set to Direct3d 11 via ANGLE. OpenGL performs quite well. STEPS TO REPRODUCE 1. Set Canva Acceleration to Direct3d 11 via ANGLE 2. Create new file A4 300dpi, select a brush which need some calculation, g)Dry Bristles for example, or some low spacing round brush like b)Basic-3 Flow. 3. Set brush size to around 500px or higher 4. Without canva zoomed in, perform fast zig-zag stroke to paint over canva. OBSERVED RESULT Brush outline and brush stroke get massive frame skip when brush stroke cannot keep up with the cursor. EXPECTED RESULT Should not get that much frame skip. SOFTWARE/OS VERSIONS Windows: windows 10 20H2 ADDITIONAL INFORMATION Small heavy calculation brush like RGBA-smudge brush don't have this issue. Tested on Pentium 3825U with intelHD, maybe it need bigger brush size to distinguish frame skip on decent machine. -- You are receiving this mail because: You are watching all bug changes.