Bug 381287

Summary:	Allow transparency mask to affect groups with pass-through enabled.
Product:	[Applications] krita	Reporter:	Zoom <zoomrmc>
Component:	Layer Stack	Assignee:	Krita Bugs <krita-bugs-null>
Status:	REPORTED ---
Severity:	wishlist	CC:	halla, info, katearcher89
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	unspecified
OS:	All
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Zoom 2017-06-16 15:09:55 UTC

At the moment, a transparency mask in a group with pass-through gets disabled and doesn't affect that group. However, when working with filter layers that would be of great help, since that way multiple filter layers can share one mask.

The only solution at the moment is to disable pass-through and add a clone layer into the group, but it's sub-optimal, since you have to group everything below, to make a clone and the filter-layer group can't be dropped to other images without making clone layers by hand.

Comment 1 David REVOY 2017-06-16 16:32:44 UTC

Interesting feature request, thanks for reporting @Zoom.

Yes, it's frustrating about groups with Pass-Trough to can play with the 0% to 100% opacity sliders while not being able to control/distribute this transparency with a transparency mask.

Comment 2 katearcher89 2018-05-19 03:21:18 UTC

Bumped into this bug and it's super annoying to dance around with complicated nested group setup to use masks and pass-through feature. And frankly don't even understand why that limitation exists at all since you can already change opacity of the group.

Comment 3 katearcher89 2018-05-19 03:23:09 UTC

Forgot about the version of the krita: 4.0.

Comment 4 Tiar 2020-04-01 16:36:21 UTC

*** Bug 399144 has been marked as a duplicate of this bug. ***

Comment 5 Halla Rempt 2021-01-22 13:26:06 UTC

The problem is that a pass-through group doesn't have a projection, so the mask would be applied to the entire projection up to and including the group. So,

L5
Group
  Mask
  L4
  L3
L2
L1

L2 would be composed with L1, L3 with the result of that, L4 with the result of that, then the transparency mask would be applied to the result of _that_ and finally L5 on top of everything.