Version: 2021.3
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ModelImporter.indexFormat

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public ModelImporterIndexFormat indexFormat;

Description

Format of the imported mesh index buffer data.

Index buffer can either be 16 bit (supports up to 65535 vertices in a mesh), or 32 bit (supports up to 4 billion vertices). Default behavior is ModelImporterIndexFormat.Auto, which picks format based on vertex count in the mesh.

Additional resources: ModelImporterIndexFormat, Mesh.indexFormat.