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SubMeshDescriptor.indexCount

public int indexCount;

Description

Index count for this sub-mesh face data.

This property, together with indexStart, determines which part of the whole index buffer is used by a particular sub-mesh. Values in the index buffer are interpreted according to the topology property, for example the usual MeshTopology.Triangles topology needs three indices for each triangle.

Additional resources: indexStart, Mesh.SetSubMesh, Mesh.GetSubMesh, Mesh.SetIndexBufferParams, Mesh.SetIndexBufferData.