FBXLoader: wrong transform on DAZ3D models

[eriadel]

Description of the problem

Dear Ladies and Gentlemen,

We struggle with three js, DAZ3D and Mixamo, to release a new web browser game, it looks like the current blocker is in mixamo exporter or three js fbx importer (more likely).

As all mixamo's objects works with three js FBX loader we've decided to firstly export a FBX model to Mixamo from Daz Studio and then from Mixamo to Three JS to make process clear and to preserve formats compatibility.

However. In Mixamo, our FBX model works perfectly, but when we export it to Three JS from Mixamo, it looks very bad, however animation is recognized and some kind of animation is ongoing, but head, legs etc. are not in the proper place.

If you like "The Thing" from John Carpenter, then you will know what I mean ;)

Please see attachments for details 👍
https://drive.google.com/open?id=1fBJX4v7T_lQ54f8wlGPTqr-3EZjs8Q9z

Attachment contains 2 models (one imported to mixamo, one exported from mixamo) and videos showing how well model behave in mixamo and how bad it looks in three js.. :(

Thank you !

Three.js version

Latest greatest!

Browser

• All of them
• exclude internet explorer as it's not compatible with the fbx loader..

OS

• All of them

Hardware Requirements (graphics card, VR Device, ...)

none..

Best Regards,
Karol

Software Architect
www.artificialworldsltd.com

[looeee]

The model "Atlantya(exported for Mixamo).fbx" is the model exported from Daz3D right?

There are a number of warnings regarding the Euler Rotation order when I try to load that:

THREE.FBXLoader: unsupported Euler order: XZY. Currently only XYZ order is supported. Animations and rotations may be incorrect.

This is actually the first model that I've come across in the wild that has non XYZ Euler order, so I had put this fairly far down on the list of things to implement. I'll take a look, but in the meantime if it's possible, change the Euler rotation order to XYZ in Daz3d or another modelling program.

Alternatively, try using FBX2glTF to convert the final file to glTF and see if that works better.

[donmccurdy]

This has been my workflow with Mixamo https://www.donmccurdy.com/2017/11/06/creating-animated-gltf-characters-with-mixamo-and-blender/ — you can join the FBX files containing animation together in Blender, then export to glTF. I don't know whether Blender import handles other Euler orders, though.

[WestLangley]

@looeee I'd say this is a reasonable thing to try when upgrading the FBXLoader to support alternate Euler orders.

[eriadel]

Why do you guys support FBX loader, if you recommend users to convert fbx models to glTF ? ;)
(but thanks for this workaround.. right now things expand our process long enough we cancel/suspend this particular project, this could potentially generate over 300 working hours with other problems so thanks :)

DAZ Studio is quite popular software last years and I think many users will like to use it this way. (different Euler orders) Maximo does it right now, so they are step ahead of Three JS :)

Cheers! :)

[donmccurdy]

The bug report is helpful in any case, so thanks — hopefully we can fix this too. But sometimes these take a while to fix and workarounds can get you going quickly. :)

[looeee]

Fixed in #14523

[rochurain]

Plugins are powerful,it's hard to me now..ohhhhhhhhhhh

[DVLP]

It looks like this problem is back. Basically every child object has wrong rotation. Top level objects are fine but if an object is in a group or has a parent it's rotation is broken.

[mrdoob]

Are you able to figure out which version broke it?