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Fixed in 2021.1.X
Fixed in 2020.1.X, 2020.2.X
Votes
0
Found in
2019.4
2020.1
2020.2
2020.2.0b8
2021.1
Issue ID
1288561
Regression
No
Crash when optimizing Mesh which contains overlapped indices in sub meshes
Reproduction steps:
1. Open attached project ("MeshOptimizeCrash-2020.2.zip")
2. Click on the "Run" menu option (Test/Run)
Expected result: Editor does not crash
Actual result: Editor crashes with stack trace:
0x00007FF65254A593 (Unity) Mesh::SetIndexData
0x00007FF65254AA23 (Unity) Mesh::SetIndicesComplex
0x00007FF65256F8E3 (Unity) OptimizeTypedIndexBuffers<unsigned int>
0x00007FF65254451E (Unity) Mesh::Optimize
0x00007FF652DFADA2 (Unity) Mesh_CUSTOM_OptimizeImpl
...
Reproducible with: 2019.3.0b1, 2019.4.14f1, 2020.1.13f1, 2020.2.0b11, 2021.1.0a5
Could not test with:2019.3.0a12 and earlier versions due to multiple compilation errors (e.g. "The type or namespace name 'SubMeshDescriptor' does not exist in the namespace 'UnityEngine.Rendering'")
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Resolution Note (fix version 2021.1):
Fixed with 2021.1.0a8, backported 2020.2.1f1, 2020.1.16f1