mirror modifier rotates duplifaced objects 90 degrees #46369

New Issue

Bubble Bobble · 2015-10-04T17:29:30+02:00

Bubble Bobble commented

2015-10-04 17:29:30 +02:00

System Information
Windows 7, NVIDIA Quadro 1000m

Blender Version
Broken: 2.76 RC1 c586e30
Worked: (N/A)

Short description of error

The mirror modifier rotates duplifaced objects 90 degrees, which isn't expected or desired behavior and is problematic.

Exact steps for others to reproduce the error

open attached blend file dupliface_error.blend
observe that mirror modifier has rotated the duplifaced lamp object 90 degrees

Note: This happens with anything at any orientation. Exact steps to reproduce would be to make a plane, move it out from center in edit mode to enable use of mirror modifier, parent an oblong object to it and set it to dupliface, and you'll see the duplicated object rotated 90 degrees. Thanks in advance for taking the time to look and for all the hard work you guys do to make blender what it is!

**System Information** Windows 7, NVIDIA Quadro 1000m **Blender Version** Broken: 2.76 RC1 c586e30 Worked: (N/A) **Short description of error** The mirror modifier rotates duplifaced objects 90 degrees, which isn't expected or desired behavior and is problematic. **Exact steps for others to reproduce the error** 1) open attached blend file [dupliface_error.blend](https://archive.blender.org/developer/F242153/dupliface_error.blend) 2) observe that mirror modifier has rotated the duplifaced lamp object 90 degrees Note: This happens with anything at any orientation. Exact steps to reproduce would be to make a plane, move it out from center in edit mode to enable use of mirror modifier, parent an oblong object to it and set it to dupliface, and you'll see the duplicated object rotated 90 degrees. Thanks in advance for taking the time to look and for all the hard work you guys do to make blender what it is!

Bubble Bobble commented

2015-10-04 17:29:30 +02:00

Changed status to: 'Open'

Bubble Bobble commented

2015-10-04 17:29:30 +02:00

Added subscriber: @JimCantley

Bastien Montagne commented

2015-10-04 19:04:23 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2015-10-04 19:04:23 +02:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2015-10-04 19:04:23 +02:00

Bastien Montagne self-assigned this 2015-10-04 19:04:23 +02:00

Bastien Montagne commented

2015-10-04 19:04:23 +02:00

Issue is caused by winding & vert of faces used to 'start the loop' (dupliface uses a 'face space' to orient dupliobject, onae axis (the normal) is easy to get, but the two other ones are more or less 'random' chosen, here based on first vert in each face loop. So there is no real bug here, it’s more a matter of TODO to find better ways to define face spaces, but that’s not a tracker topic really. Thanks for the report anyway.

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mirror modifier rotates duplifaced objects 90 degrees #46369