Grease Pencil Automerge connecting new stroke with strokes that are closed #98235

New Issue

Matthew Gafford · 2022-05-18T21:08:31+02:00

Matthew Gafford commented

2022-05-18 21:08:31 +02:00

System Information
Operating system: Win10
Graphics card: RTX 3070
Tablet: Xp-Pen Deco 03 (Wireless)

Blender Version
Broken: 3.1
Worked: N/A

Short description of error
When Automerge is enabled, sometimes new strokes get merged with either the starting vertex or the ending vertex of a circular stroke that has been "closed" with the F key.

Exact steps for others to reproduce the error

Draw a Grease Pencil stroke in the shape of a circle, but with a little gap still open.
Select the stroke in Edit Mode and hit F key to close the stroke into a full circle.
Enable Automerge
Draw a stroke that ends near the gap you filled in, either by the starting vertex or the ending vertex (where the gap was filled in)

Video explanation:
https://www.youtube.com/watch?v=79cHYZ2wvys

Blend File:
AutoMergeMergingNewStrokeWithClosedStrokes.blend

**System Information** Operating system: Win10 Graphics card: RTX 3070 Tablet: Xp-Pen Deco 03 (Wireless) **Blender Version** Broken: 3.1 Worked: N/A **Short description of error** When Automerge is enabled, sometimes new strokes get merged with either the starting vertex or the ending vertex of a circular stroke that has been "closed" with the F key. ![image.png](https://archive.blender.org/developer/F13087538/image.png) **Exact steps for others to reproduce the error** - Draw a Grease Pencil stroke in the shape of a circle, but with a little gap still open. - Select the stroke in Edit Mode and hit F key to close the stroke into a full circle. - Enable Automerge - Draw a stroke that ends near the gap you filled in, either by the starting vertex or the ending vertex (where the gap was filled in) Video explanation: https://www.youtube.com/watch?v=79cHYZ2wvys Blend File: [AutoMergeMergingNewStrokeWithClosedStrokes.blend](https://archive.blender.org/developer/F13087537/AutoMergeMergingNewStrokeWithClosedStrokes.blend)

Matthew Gafford commented

2022-05-18 21:08:31 +02:00

Added subscriber: @AFoxInSpace

Pratik Borhade commented

2022-05-19 07:09:20 +02:00

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

Pratik Borhade commented

2022-05-19 07:09:24 +02:00

Added subscriber: @PratikPB2123

Antonio Vazquez commented

2022-05-19 09:02:46 +02:00

Added subscriber: @antoniov

Antonio Vazquez commented

2022-05-19 09:02:46 +02:00

This is a limitation of the algorithm. When you use automerge, the main factor to merge is the distance, and depending of that, the stroke is merged. In general, automerge is not designed to merge with closed shapes, it's more to join a group of strokes that form a full stroke (for example, draw a curved shape drawing small strokes as it's done with a clasic pencil).

Matias Mendiola commented

2022-05-19 14:44:13 +02:00

Added subscriber: @mendio

Matias Mendiola commented

2022-05-19 14:44:13 +02:00

As you said @antoniov the tool is intended to use only on opened strokes, can we just ignore closed strokes in the algorithm to avoid undesired results?

Antonio Vazquez commented

2022-05-19 17:55:53 +02:00

In #98235#1361303, @mendio wrote:
As you said @antoniov the tool is intended to use only on opened strokes, can we just ignore closed strokes in the algorithm to avoid undesired results?

good point...maybe we could skip closed strokes.

> In #98235#1361303, @mendio wrote: > As you said @antoniov the tool is intended to use only on opened strokes, can we just ignore closed strokes in the algorithm to avoid undesired results? good point...maybe we could skip closed strokes.

Antonio Vazquez commented

2022-05-19 18:06:54 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Antonio Vazquez closed this issue

2022-05-19 18:06:54 +02:00

Antonio Vazquez self-assigned this 2022-05-19 18:06:54 +02:00

Antonio Vazquez commented

2022-05-19 18:06:54 +02:00

This issue has been solved in commit 9e9895b055 following the idea of @mendio described above. Now the closed strokes never are merged because it's not logic.

This issue has been solved in commit 9e9895b055d4 following the idea of @mendio described above. Now the closed strokes never are merged because it's not logic.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Grease Pencil Automerge connecting new stroke with strokes that are closed #98235