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Grease pencil mirror modifier with empty not mirroring over empty object
Closed, ResolvedPublic


System Information
Operating system: Windows 10
Graphics card: Dell internal + Nvidia gtx 1050

Blender Version
Broken: 2.80, ff108aac631

Short description of error
Using the mirror modifier with a regular empty (plain axes) as the mirror object over x axis doesn't use the empty as the mirror plane. Also when pressing N in the dope sheet an empty window opens on the right.

Exact steps for others to reproduce the error
Create grease pencil object, add empty, use mirror modifier and set the empty as the mirror object, move empty and/or grease pencil object.

Event Timeline

Antonio Vazquez (antoniov) triaged this task as Needs Information from User priority.

I cannot reproduce in Windows 10.

I tested all these steps and all worked as expected.:

  1. Create GP Object.
  2. Create some strokes.
  3. Add mirror modifier.
  4. Add empty.
  5. Use empty as mirror object.
  6. Move empty ->OK
  7. Move GP object -> OK

The objects are mirrored over the same empty.

Zachary (AFWS) added a subscriber: Zachary (AFWS).EditedDec 16 2018, 3:41 PM

I get the same here on Windows 10 x64. Looks like if you keep the empty at (0.0, 0.0, 0.0). the mirror doesn't go beyond the 0.0 point of the selected mirror axis. If this is normal, it sure is odd behavior for a mirror modifier.

Still got an issue here; translation now works as expected but rotation doesn't mirror.

We never added support for rotation to this modifier. Grease Pencil modifiers are not necessary equal to mesh modifiers so we haven't replicated all features.

As this is a feature request, I take note but keep close the report because the reported bug was fixed.