SubMeshStartIndexLocation Property

Start index in IndexBuffer in the Mesh that was used to create the MultiMaterialModelNode. Note that index numbers are not triangle indexes but indices in the IndexBuffer. For example to set start location to the second triangle, set StartIndexLocation to 3 (indices from 0 to 2 define the first triangle). This number is clamped to a value between zero and triangle indices count.

public int StartIndexLocation { get; set; }