Bug: FBX - Skinned Mesh Imports With Wrong Transforms - Githubissues

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Bug: FBX - Skinned Mesh Imports With Wrong Transforms #5642

Open lxw404 opened 4 days ago

lxw404 commented 4 days ago

Describe the bug

Currently FBX models with skinned meshes will be imported with invalid transforms due to this change: https://github.com/assimp/assimp/pull/5349 which did not revert this change: https://github.com/assimp/assimp/commit/8a1dc87b4ca.

This results in the pose calculating against invalid absolute transforms.

To Reproduce

Steps to reproduce the behavior: Import a skinned FBX mesh away from the origin of the scene such as this test one: zan.fbx.zip

Expected behavior

The skinned mesh should import without pose distortion.

Screenshots

Blender With Armature Left	Front

Current behavior Left	Front

Fixed behavior: Left	Front

Platform (please complete the following information):

Windows 10

Additional context

lxw404 commented 4 days ago

I believe https://github.com/assimp/assimp/issues/5449 is related to this and should be fixed by: https://github.com/assimp/assimp/pull/5643.