Only support vrm1 in Magick for now

[fire]

The issue is related to the bone rolls of vrm0 and vrm1 in three.vrm. The bones are defined to always roll to the top, but they are not behaving as expected.

The forward rotation (180 degrees) of vrm0 is fixed in vrm1.

Good Examples

• Green is up in local space.
• Image:

• T-Pose
• Image : Good Example 2 (T-Pose)

Bad Examples

• Bad Example Bone rolls invalid

• Image:

• Bad Example 4 (A-Pose)

• Image:

Related Links

• VRM Specification Issue #34
• Three VRM 1 Sandbox Mixamo Repository
• Glitch Demo

Describe the solution you'd like

Existing Solutions

1. Ensure animation is in FBX format as per the Glitch demo used in Magick.

Proposed Solutions

1. Ignore forward fixing by only supporting vrm1.
2. Restrict to vrm 1 and revert ultra's rotation on the top node fix.

[benbot]

#1047 Should unblock this

[fire]

Completed.