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Maniphest T87257

Line art intersections do not show when Source Type is Object
Confirmed, NormalPublicKNOWN ISSUE
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Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: Radeon(TM) RX 460 Graphics ATI Technologies Inc. 4.5.13596 Core Profile Context 20.10.35.02 27.20.1034.6

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-04-06 21:02, hash: rBe0a1a2f49dab
Worked: (newest version of Blender that worked as expected)

Short description of error
Line art intersections do not show when Source Type is Object.

Exact steps for others to reproduce the error
Switch the Source Type to Collection or Scene in the following file.

line_art_intersection_bug.blend843 KBDownload

Event Timeline

Kinouti Takahiro (dskjal) created this task.Apr 7 2021, 8:01 AM
Falk David (filedescriptor) changed the task status from Needs Triage to Confirmed.Apr 7 2021, 9:41 AM
Falk David (filedescriptor) added a project: Grease Pencil.
Falk David (filedescriptor) added subscribers: YimingWu (NicksBest), Falk David (filedescriptor).

I can confirm this on the lastest 2.93.0 Alpha, branch: master, commit date: 2021-04-07 05:32, hash: rB2fbee4598cb7.

Though enabling All Lines in the Chaining panel solves the issue for me.

@YimingWu (NicksBest) do you know what might be the problem here?

Kinouti Takahiro (dskjal) added a comment.Apr 7 2021, 10:03 AM

@Falk David (filedescriptor)

Approaching the object disappears the lines.

YimingWu (NicksBest) added a comment.Apr 7 2021, 3:27 PM

This is currently a limitation of line art, which is it doesn't know which object an intersection line comes from, hence you can't select intersection line using object source.

This will be addressed in the future where the information is recorded.

Antonio Vazquez (antoniov) changed the subtype of this task from "Report" to "Known Issue".Apr 8 2021, 10:16 AM
Antonio Vazquez (antoniov) added a subscriber: Antonio Vazquez (antoniov).

@YimingWu (NicksBest) If this is a know limitation, I'm going to tag this task report as this subtype.