FBXLoader adds rotation discontinuities into animation

[solinehayes]

Description

FBXLoader adds rotation discontinuities into animation
When loading the FBX onto threeJS editor (or anything using FBXLoader), the displayed animation has rotation discontinuities. However, when loading the animation onto blender, the animation is good. Similarly if we convert the FBX to GLB and load it onto the threeJS editor, there is not problem either.

Zip containing both FBX and GLB animation:
RotationDiscontinuities.zip

Reproduction steps

1. Load the fbx provided onto ThreeJS editor
2. Play the animation

or

1. Load the FBX with the FBX loader
2. Play the animation

Code

N/A

Live example

• threeJS edior

Screenshots

	ThreeJS editor	Blender
FBX
GLB

Version

r157

Device

Desktop

Browser

Chrome

OS

Linux

[Mugen87]

I can confirm the issue after testing with the dev version of the editor. Marking it as a bug.