Page MenuHome
Create Task
Maniphest T34616

Mirror modifier flips curve normals
Closed, ResolvedPublic
Actions

Description

--- Operating System, Graphics card ---
Win 7 64bit, Nvidia GTX 650Ti

--- Blender version with error, and version that worked ---
error in r55211 and official 2.66a (r55075:55077)

--- Short description of error ---
The mirror modifier on a bevelled curve (bevel depth > 0) object flips the normals on both sides.
Also extruded curves and curves with a bevel object are flipped.

--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
See the attached .blend.
There is one curve with a bevel object, and the other with Extrude and Bevel Depth. Switch the mirror modifier on and off to see the problem.

Event Timeline

Anna Celarek (ania) edited a custom field.Mar 12 2013, 8:57 PM
Anna Celarek (ania) attached 1 file(s): F24774: curve.blend.
Ton Roosendaal (ton) added a comment.Mar 13 2013, 3:34 PM

We made mesh modifiers to correct normals for mirroring. Curves could do this as well. Maybe sergey has energy for this :)

Sergey Sharybin (sergey) added a comment.Mar 14 2013, 10:51 AM

Was a backface culling visualization error. Fixed in svn rev55273.

Thanks for the report, closing.

Sergey Sharybin (sergey) changed the task status from Unknown Status to Resolved.Mar 14 2013, 10:51 AM