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Fixed

Fixed in 2021.3.36f1, 2022.3.21f1, 2023.3.0b7

Votes

0

Found in

2021.3.25f1

2022.2.19f1

2023.1.0b16

2023.2.0a14

2023.3.0a1

Issue ID

UUM-35817

Regression

No

Some tangents return NaN when the Tangents calculation method is set to Mikktspace

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Reproduction steps:
1. Open the attached “ASDQWE” project
2. Open the “Assets/Scenes/SampleScene.unity” Scene
3. In the Hierarchy Window select “1” Game Object
4. In the Inspector Window right-click the “Check for Na N Tangents (Script)” Component and select “Check for Tangents NaNs"
5. Observe the Console Window

Expected result: Tangents were calculated correctly and no LogErrors are thrown
Actual result: Tangents were calculated incorrectly and multiple “Tangent 26912 is NaN” LogErrors are thrown

Reproducible with: 2020.3.48f1, 2021.3.25f1, 2022.2.19f1, 2023.1.0b16, 2023.2.0a14

Note: The reproduction does not occur with other tangent calculation methods

  1. Resolution Note (fix version 2023.3.0b7):

    Fixed some tangents returning nan in Mikktspace tangent calculation.

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