View Issue Details

IDProjectCategoryView StatusLast Update
0016925ScribusCanvaspublic2023-04-15 19:24
ReporterOrdinary-21 Assigned To 
Status newResolutionopen 
PlatformLinuxOSUbuntuOS Version22.04.2
Product Version1.5.8 
Summary0016925: Rendering of drop shadows is slow
DescriptionThis has been reported several times, see the tickets marked as duplicates of 0012513. The problem is that, even on strong machines, the simplest editing operations (selecting elements, dragging them, zooming the canvas, ...) become unbearably slow as soon as there are, say, 10 elements with drop shadow enabled. I can imagine that rewriting the drop shadow effect for better performance might be too big of a task, but maybe a decent band-aid would be to have a setting (off by default) to only render shadows in preview mode?
Steps To Reproduce1. In a new document, draw a rectangle.
2. Activate drop shadow on it.
3. Copy it and hit paste until your machine starts to chokes (that's about 20 times on my i7-12800H / 32 GB laptop).
4. Try to zoom or select one of the rectalgles and drag it. Every action will take many seconds to complete.
TagsNo tags attached.


related to 0012513 closedfschmid Signitficant data-entry speed issue when the page contains a shaded object 
child of 0012505 acknowledgedfschmid Metabug: Drop Shadow (1.5.0.svn) 


There are no notes attached to this issue.

Issue History

Date Modified Username Field Change
2023-04-06 13:40 Ordinary-21 New Issue
2023-04-15 19:23 JLuc Relationship added child of 0012505
2023-04-15 19:24 JLuc Relationship added related to 0012513