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[#24359] Collada: end bone zero size, mysterious extra empty

Date:
2010-10-22 11:11
Priority:
2
State:
Closed
Submitted by:
Thomas Larsson (thomasl)
Assigned to:
Nathan Letwory (jesterking)
Category:
Import/Export
Status:
Fixed / Closed
Relates to:
Duplicates:
Patches:
 
Summary:
Collada: end bone zero size, mysterious extra empty
Detailed description
All objects in a simple blend file were exported to dae, and then reimported into a new Blender with all objects deleted. This should reproduce the original content. However, there were two important differences:

1. The end bone has zero size. IIRC, this also happens for bones with more than one child.

2. A mysterious new empty is created.

Followup

Message
  • Date: 2010-10-22 11:14
  • Sender: Thomas Larsson
  • Tested with Blender 2.54 r32239 Windows XP 32 bit. I did not a more recent build with Collada.
  • Date: 2010-11-04 09:06
  • Sender: Benjamin Tolputt
  • I get this with the latest version of Blender (SVN r32863). Importing an armature exported from any number of sources (Poser, Maya, DAZ Studio, etc) all result in the "tip bones" being incredibly small in size and pointing forward (a default value?).

    This is on OSX but I have had the same issue when running on Windows.
  • Date: 2010-11-15 12:38
  • Sender: Mike Sloman
  • OSX 64 bit builds as well up to and including r33082

    * The empty is assigned to the end bone as a custom shape. deleting it reveals the end bone but with a 90 degree rotation (all facing +Z in my case when they were parallel to xy plane when exported)

    * The end bone length appears lightly shorter than the original before export/import as collada.
  • Date: 2010-12-21 10:51
  • Sender: Jeroen Bakker
  • added patch for max length of leaf and removal of the empty.
 

Attached Files:

Name Date Download
dtest1.JPG 2010-10-22 11:11 Download
dtest.zip 2010-10-22 11:11 Download
patch-opencollada-armature-leaves.txt 2010-12-21 10:51 Download

Changes:

Field Old Value Date By
status_idOpen2010-12-21 11:44jesterking
close_dateNone2010-12-21 11:44jesterking
StatusInvestigate2010-12-21 11:44jesterking
File Added14192: patch-opencollada-armature-leaves.txt2010-12-21 10:51jbakker
assigned_tojbakker2010-12-21 10:51jbakker
assigned_tojesterking2010-12-20 10:28jbakker
priority32010-12-16 19:48jesterking
ResolutionNone2010-11-12 15:51ton
assigned_tonone2010-11-12 15:51ton
File Added13210: dtest.zip2010-10-22 11:11thomasl
File Added13209: dtest1.JPG2010-10-22 11:11thomasl