| Summary: | Node.setOpacity(int) fails to visually update | ||
|---|---|---|---|
| Product: | [Applications] krita | Reporter: | RKS <rkspsm> |
| Component: | Scripting | Assignee: | Krita Bugs <krita-bugs-null> |
| Status: | RESOLVED INTENTIONAL | ||
| Severity: | minor | CC: | lynx.mw+kde |
| Priority: | NOR | ||
| Version First Reported In: | nightly build (please specify the git hash!) | ||
| Target Milestone: | --- | ||
| Platform: | Appimage | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
I'm not the scripting expert here, but isn't this intentional? You probably just should call document.refreshProjection() If every property change would forcefully update the projection, doing several changes would waste a lot of CPU time. (In reply to Lynx3d from comment #1) > I'm not the scripting expert here, but isn't this intentional? > You probably just should call document.refreshProjection() > > If every property change would forcefully update the projection, doing > several changes would waste a lot of CPU time. Thanks, document.refreshProjection() works. I actually expected that there might be some step to notify the change. But it is not necessary that doing multiple updates waste CPU in general sense. Some APIs may use some mechanism to mark the current state as dirty and will update during next refresh. In that case, there will not be any need to manually notify. |
SUMMARY The function setOpacity(int) of class Node (tested only on Paint Layer), fails to visually update on its own, although it does get reflected in layers docker (it shows new opacity). If I try to paint on the layer, the new strokes are of new opacity whereas old strokes stay with old opacity value. But it fixes if i try to change opacity manually via layers docker. STEPS TO REPRODUCE 1. Make sure a paint layer is selected, with something painted on it, I assume its 255 (100%). 2. Run a script which changes the active node's opacity by node.setOpacity(int) to some new value, say 128 (50%). OBSERVED RESULT Layers docker updates the current layer's opacity to 50% but nothing happens visually on the canvas. Trying to paint will paint new strokes with 50% but older strokes stay at 100%. Trying to change opacity of the layer manually fixes this. EXPECTED RESULT The canvas should update to new opacity. NOTE : - If I am expected to call some function to notify canvas after I call setOpacity(int) then it should be mentioned in the document. Currently nothing is mentioned. - As a workaround, I just call node.rotateNode(0.0) after changing opacity. This fixes the problem, the canvas gets updated with new opacity value. SOFTWARE/OS VERSIONS Krita Version: 4.3.1-alpha (git f119f41) Languages: en_US, en Hidpi: false Qt Version (compiled): 5.12.9 Version (loaded): 5.12.9 OS Information Build ABI: x86_64-little_endian-lp64 Build CPU: x86_64 CPU: x86_64 Kernel Type: linux Kernel Version: 5.7.9-arch1-1 Pretty Productname: Arch Linux Product Type: arch Product Version: unknown Desktop: X-Cinnamon OpenGL Info Vendor: "NVIDIA Corporation" Renderer: "GeForce GTX 960/PCIe/SSE2" Version: "4.6.0 NVIDIA 450.57" Shading language: "4.60 NVIDIA" Requested format: QSurfaceFormat(version 3.0, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CompatibilityProfile) Current format: QSurfaceFormat(version 4.6, options QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24, redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8, stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer, swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile QSurfaceFormat::CompatibilityProfile) Version: 4.6 Supports deprecated functions true is OpenGL ES: false QPA OpenGL Detection Info supportsDesktopGL: true supportsOpenGLES: true isQtPreferOpenGLES: false Hardware Information GPU Acceleration: auto Memory: 15935 Mb Number of Cores: 4 Swap Location: /tmp Current Settings Current Swap Location: /tmp Current Swap Location writable: true Undo Enabled: true Undo Stack Limit: 30 Use OpenGL: true Use OpenGL Texture Buffer: false Use AMD Vectorization Workaround: false Canvas State: OPENGL_SUCCESS Autosave Interval: 180 Use Backup Files: false Number of Backups Kept: 20 Backup File Suffix: _backup Backup Location: Same Folder as the File Backup Location writable: false Use Win8 Pointer Input: false Use RightMiddleTabletButton Workaround: false Levels of Detail Enabled: false Use Zip64: false Display Information Number of screens: 1 Screen: 0 Name: HDMI-0 Depth: 24 Scale: 1 Resolution in pixels: 1920x1080 Manufacturer: BNQ Model: BenQ GW2760HS Refresh Rate: 60 ADDITIONAL INFORMATION