| Microsoft DirectX 8.1 (Visual Basic) | 
Used in a mesh object to specify which material applies to which faces. The nMaterials member specifies how many materials are present, and materials specify which material to apply.
<F6F23F42-7686-11cf-8F52-0040333594A3>
| Member name | Type | Optional array size | Optional data objects | 
|---|---|---|---|
| nMaterials | DWORD | Material | |
| nFaceIndexes | DWORD | ||
| FaceIndexes | array DWORD | nFaceIndexes |