Import Collada: instance_node incorrectly handled #26012

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David ROY · 2011-02-10T16:36:30+01:00

David ROY commented

2011-02-10 16:36:30 +01:00

%%%Try to import attached collada file.
The meshes are incorrectly placed, except the first one.
The collada scene contains instance_nodes referencing a classic node instantiating some geometry.

the classic node is correctly placed
it seems that the instance_node matrix isn't combined with the instantiated node matrix to get the final matrix for other nodes

See attached picture of correct result in Maya 2008 + OpenCOLLADA%%%

%%%Try to import attached collada file. The meshes are incorrectly placed, except the first one. The collada scene contains instance_nodes referencing a classic node instantiating some geometry. - > the classic node is correctly placed - > it seems that the instance_node matrix isn't combined with the instantiated node matrix to get the final matrix for other nodes See attached picture of correct result in Maya 2008 + OpenCOLLADA%%%

David ROY commented

2011-02-10 16:36:30 +01:00

Changed status to: 'Open'

roy mcgown commented

2011-02-14 21:48:57 +01:00

%%%Same -problem, 2.4 ok 2.5 beta no joy. Fails at initial import see attached error report and dae file. This file is from Goole Sketchup SU 7.1 free and was extracted form a Google earth KMZ%%%

Nathan Letwory commented

2011-03-09 15:16:57 +01:00

%%%Fixed and committed in r35429. Thanks for reporting!%%%

Nathan Letwory commented

2011-03-09 15:16:57 +01:00

Changed status from 'Open' to: 'Resolved'

Nathan Letwory closed this issue

2011-03-09 15:16:57 +01:00

David ROY commented

2011-04-06 10:31:37 +02:00

%%%Thanks, this is much better now and this fixes the attached model.
However I'm afraid the fix is incomplete.
I slightly modified the instance_nodes model to add an offset to the scene root node, so that everything is translated by (100.0, 100.0) (model offset_instance_nodes.zip)
There's still an error in Blender 2.56.6 r36007, see picture comparison "offset_instance_nodes.png" between Maya and Blender%%%

%%%Thanks, this is much better now and this fixes the attached model. However I'm afraid the fix is incomplete. I slightly modified the instance_nodes model to add an offset to the scene root node, so that everything is translated by (100.0, 100.0) (model offset_instance_nodes.zip) There's still an error in Blender 2.56.6 r36007, see picture comparison "offset_instance_nodes.png" between Maya and Blender%%%

David ROY commented

2011-04-06 10:35:08 +02:00

%%%I can't seem to be able to re-open it and attach new files...%%%

Julien Soler commented

2017-07-29 11:44:29 +02:00

Added subscriber: @superpingu

Julien Soler commented

2017-07-29 11:44:29 +02:00

It seems that this problem is still present in 2.78c. Most of dae files exported from sketchup I have don't import correctly in blender. I tried to build a small file exposing the problem : test.dae. This file is imported correctly in Unity. The <instance_node url="#ID4" /> in the visual_scene description seems to be ignored.

Hope this helps

It seems that this problem is still present in 2.78c. Most of dae files exported from sketchup I have don't import correctly in blender. I tried to build a small file exposing the problem : [test.dae](https://archive.blender.org/developer/F683886/test.dae). This file is imported correctly in Unity. The <instance_node url="#ID4" /> in the visual_scene description seems to be ignored. Hope this helps

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Import Collada: instance_node incorrectly handled #26012