Artifacts in rendering of Gaussian blur filter (horizontal stripes)
Bug #1656383 reported by
Patrick Storz
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Inkscape |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
When zooming far into a blurred region (or setting a large blur radius) artifacts appear in the rendering of the Gaussian blur filter (horizontal stripes with changing color, see screenshot).
The screenshot was made with Inkscape 0.92.0 (64-bit) on Windows 10 x64 but current trunk (r15415) is affected, too.
The issue is dependent on the rendering quality set in preferences: The lower the quality setting the earlier (i.e. for lower zoom, smaller blur radius) the artifacts become visible.
Only for the highest quality setting I could not see any artifacts (but rendering gets so slow on my machine that i can't zoom in very far, so I can't completely rule out that it's affected, too).
To post a comment you must log in.
Some helpful comments from su_v via IRC: /bazaar. launchpad. net/~inkscape. dev/inkscape/ trunk/changes/ 14914 /bazaar. launchpad. net/~inkscape. dev/inkscape/ trunk/revision/ 14913
based on tests with archived builds: not seen with 14904, seen with 14914
https:/
could have been exposed with the fix for the broken quality settings in
https:/
(i.e. the issue could have been there before that (?))
I tested with default (new) prefs for each run.
they seem to go back to early cairo-rendering merges
I do see them with 10578 (before the merge of the renderer caching branch)
I do not see them with 10579 (the merge of the caching branch)
but that's also the commit which disabled the quality prefs (based on my earlier tests)