Search Issue Tracker

By Design

Votes

1

Found in

2021.2.0a1

2021.2.0b2

2022.1

Issue ID

1351441

Regression

Yes

Imported model with Animation is not displayed/displayed incorrectly

Asset - Database

-

How to reproduce:
1. Open the attached "case_1351441.zip" project
2. Observe the model in the Game view

Expected result: all model parts are in the correct position
Actual result: Frame_low GameObject is in the incorrect position (should be in hands)

Reproducible with: 2021.2.0a1, 2021.2.0b7, 2022.1.0a5
Not reproducible with: 2019.4.29f1, 2020.3.15f2, 2021.1.17f1

Notes:
1. With Unity 2021.2.0a1, 2021.2.0a20 and 2022.1.0a4, 2022.1.0a5 - model is visible but some parts are in wrong position
2. With Unity 2021.2.0a21, 2021.2.0b7 and 2022.1.0a1, 2022.1.0a3 - model is not visible at all
3. Warning that appears:
"ImportFBX Warnings:
Mesh 'Frame_low' has 6671 (out of 6671) vertices with no weight and bone assigned (they will be assigned to bone #0 with weight 1). The list of vertices: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and so on..."

  1. Resolution Note (2022.1.X):

    Prior to 2021.2, when bones where imported which were not bound to vertices the Model Importer stripped them. This made the generation of reusable rigs more challenging.

    From 2021.2 onwards a new flag was added to the Model Importer to enable/disable stripping. For existing assets it's enabled by default (preserving the existing functionality), but for new assets it's disabled. In this case, enabling the "OptimizeBones" flag on the Model Importer returns it to the existing functionality.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.