Animations in world space #41460

New Issue

Eric · 2014-08-16T12:02:28+02:00

Eric commented

2014-08-16 12:02:28 +02:00

System Information
Linux - Some Nvidia

Blender Version
Broken: 2.70a f93bc76
Worked: (optional)

Short description of error

Two (linked) things:

Even if we choose "matrix" for "transformation type", transformations for non-bones objects (this works with bones) are exported as Loc-Rot-Scale, including animation samples. If we choose "both", matrix transformations are available in visual_scene, but not in animations. This is not so important but i don't think this is normal.
The animation transformation values (output) are exported in world space, even if the targeted object is a child of another. The COLLADA spec don't speak about that, but it seem logical to export transformations in local/object space, to get a correct transformation. And, as you can test: If you import the COLLADA file that you just exported, animations of children objects are all wrong... so i think this is not a good way...

Exact steps for others to reproduce the error
blender-test-anime2.dae
Dae-Test-Anim.blend

Export scene in COLLADA, then import it again, see the result...

**System Information** Linux - Some Nvidia **Blender Version** Broken: 2.70a f93bc76 Worked: (optional) **Short description of error** Two (linked) things: 1) Even if we choose "matrix" for "transformation type", transformations for non-bones objects (this works with bones) are exported as Loc-Rot-Scale, including animation samples. If we choose "both", matrix transformations are available in visual_scene, but not in animations. This is not so important but i don't think this is normal. 2) The animation transformation values (output) are exported in world space, even if the targeted object is a child of another. The COLLADA spec don't speak about that, but it seem logical to export transformations in local/object space, to get a correct transformation. And, as you can test: If you import the COLLADA file that you just exported, animations of children objects are all wrong... so i think this is not a good way... **Exact steps for others to reproduce the error** [blender-test-anime2.dae](https://archive.blender.org/developer/F104354/blender-test-anime2.dae) [Dae-Test-Anim.blend](https://archive.blender.org/developer/F104355/Dae-Test-Anim.blend) Export scene in COLLADA, then import it again, see the result...

Eric commented

2014-08-16 12:02:28 +02:00

Changed status to: 'Open'