When using Automerge of Grease Pencil, the previous strokes will disappear. #83132

New Issue

Yuro · 2020-11-27T22:54:00+01:00

Yuro commented

2020-11-27 22:54:00 +01:00

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: AMD Radeon(TM) R7 Graphics ATI Technologies Inc. 4.5.13539 Core Profile Context 24.20.13011.1009

Blender Version
Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-26 23:29, hash: 1709bc5164
Worked: (newest version of Blender that worked as expected)

Short description of error
When using Automerge of Grease Pencil, the previous strokes will disappear.
GIF：

Exact steps for others to reproduce the error
1.Turn on Grease Pencil Automerge.
2.Draw strokes multiple times.
3.Connect different endpoints.
4.The previous strokes will disappear.
untitled1.blend

**System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: AMD Radeon(TM) R7 Graphics ATI Technologies Inc. 4.5.13539 Core Profile Context 24.20.13011.1009 **Blender Version** Broken: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-26 23:29, hash: `1709bc5164` Worked: (newest version of Blender that worked as expected) **Short description of error** When using Automerge of Grease Pencil, the previous strokes will disappear. GIF： ![1.gif](https://archive.blender.org/developer/F9392598/1.gif) **Exact steps for others to reproduce the error** 1.Turn on Grease Pencil Automerge. 2.Draw strokes multiple times. 3.Connect different endpoints. 4.The previous strokes will disappear. [untitled1.blend](https://archive.blender.org/developer/F9392855/untitled1.blend)

Yuro commented

2020-11-27 22:54:01 +01:00

Added subscriber: @Yuro

champions commented

2020-11-27 23:24:43 +01:00

Added subscriber: @schampions

champions commented

2020-11-27 23:24:43 +01:00

This is because you are closing by forming a closed figure. But there is a question whether this tool should be like that!

*This is because you are closing by forming a closed figure. But there is a question whether this tool should be like that!*

Yuro commented

2020-11-28 04:21:38 +01:00

In #83132#1063679, @schampions wrote:

> This is because you are closing by forming a closed figure. But there is a question whether this tool should be like that!

Ah, you're right. Most of the time, this way is useful! I see now.

> In #83132#1063679, @schampions wrote: > > *> This is because you are closing by forming a closed figure. But there is a question whether this tool should be like that!* Ah, you're right. Most of the time, this way is useful! I see now.

Germano Cavalcante commented

2020-12-01 14:53:01 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-12-01 14:53:01 +01:00

It doesn't seem to be a bug in my opinion.

Antonio Vazquez commented

2020-12-01 16:06:36 +01:00

Added subscriber: @antoniov

Antonio Vazquez commented

2020-12-01 16:06:36 +01:00

This is not a bug. When you join two strokes, if there is some section to trim, the stroke is trimmed. Also, if the distance after trim between extremes is very small, the stroke is set as cyclic.

Actually, the threshold for these limits is hardcoded with values that we have tested. If the stroke is very small, these values could be too much and this is what you see. We are still discussing if we must add these values to the UI, or this is increase UI complexity for using only in corner cases.

This is not a bug. When you join two strokes, if there is some section to trim, the stroke is trimmed. Also, if the distance after trim between extremes is very small, the stroke is set as cyclic. Actually, the threshold for these limits is hardcoded with values that we have tested. If the stroke is very small, these values could be too much and this is what you see. We are still discussing if we must add these values to the UI, or this is increase UI complexity for using only in corner cases.

Germano Cavalcante commented

2020-12-01 16:38:14 +01:00

Changed status from 'Needs Triage' to: 'Archived'

Germano Cavalcante closed this issue

2020-12-01 16:38:14 +01:00

Germano Cavalcante commented

2020-12-01 16:38:14 +01:00

In this case I will close the report.
The ToDo task can be created depending on the outcome of the discussion.

In this case I will close the report. The `ToDo` task can be created depending on the outcome of the discussion.

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When using Automerge of Grease Pencil, the previous strokes will disappear. #83132