GPencil: Mirror is inconsistent with Mesh Mirror #78527

New Issue

Philip Holzmann · 2020-07-02T11:28:16+02:00

Philip Holzmann commented

2020-07-02 11:28:16 +02:00

System Information
Operating system: Windows 10 64 bit

Blender Version
Broken: 2.80.1 release, 2.90 alpha 52b125a790
Worked:

Short description of error
The Grease Pencil Mirror modifier does not have the same results as the Mirror Modifier on other object types (Mesh, Curve, etc)

Exact steps for others to reproduce the error
gp_mirror.blend

Both Suzannes are mirrored by the Empty in the middle.
The Empty is rotated by 90° around the X axis.
The mirror axis is also X, so this should not affect the mirror operation.

As you can see, the mesh Suzanne is not upside down, but the Grease Pencil is.

**System Information** Operating system: Windows 10 64 bit **Blender Version** Broken: 2.80.1 release, 2.90 alpha 52b125a790e3 Worked: **Short description of error** The Grease Pencil Mirror modifier does not have the same results as the Mirror Modifier on other object types (Mesh, Curve, etc) **Exact steps for others to reproduce the error** [gp_mirror.blend](https://archive.blender.org/developer/F8659351/gp_mirror.blend) Both Suzannes are mirrored by the Empty in the middle. The Empty is rotated by 90° around the X axis. The mirror axis is also X, so this should not affect the mirror operation. As you can see, the mesh Suzanne is not upside down, but the Grease Pencil is.

Philip Holzmann commented

2020-07-02 11:28:16 +02:00

Added subscriber: @Foaly

Antonio Vazquez changed title from ~~Grease Pencil Mirror is inconsistent with Mesh Mirror~~ to GPencil: Mirror is inconsistent with Mesh Mirror

2020-07-02 16:47:36 +02:00

Antonio Vazquez self-assigned this 2020-07-02 16:47:36 +02:00

Antonio Vazquez commented

2020-07-02 16:47:36 +02:00

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

blender-admin commented

2020-07-02 16:57:11 +02:00

This issue was referenced by a4fe8ef236

This issue was referenced by a4fe8ef236b65210ef04945be7f3936757015b7f

Antonio Vazquez commented

2020-07-02 16:57:37 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Antonio Vazquez closed this issue

2020-07-02 16:57:37 +02:00

Philip Holzmann commented

2020-07-02 19:16:48 +02:00

Tested with commit 85980743b0
Date: Thu Jul 2 10:16:54 2020 -0600

Please reopen this.
This is still not solved:
gp_mirror2.blend

Both Suzannes now have the same location.

I animated the empty to illustrate the issue.
For some frames, the mirrored Suzannes match, for some they do not.

Tested with commit 85980743b058e287f1d6400a64dcc60f87fad000 Date: Thu Jul 2 10:16:54 2020 -0600 Please reopen this. This is still not solved: [gp_mirror2.blend](https://archive.blender.org/developer/F8660166/gp_mirror2.blend) Both Suzannes now have the same location. I animated the empty to illustrate the issue. For some frames, the mirrored Suzannes match, for some they do not.

Philip Holzmann commented

2020-07-02 20:45:23 +02:00

I wrote a patch.
See D8188

I wrote a patch. See [D8188](https://archive.blender.org/developer/D8188)

blender-admin commented

2020-07-02 22:56:12 +02:00

This issue was referenced by a07922159d

This issue was referenced by a07922159d4abfeaca4db9b3f08b3f85e3a35ca9

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GPencil: Mirror is inconsistent with Mesh Mirror #78527