FaceUndoFlags

Name	Value	Description
FACE_GROUP	0x0001	Includes smoothing group id in the undo unit.
FACE_TEX	0x0002	Includes the material id in the undo unit.
FACE_TEXCOORD	0x0004	Includes the texture coordinates in the undo unit.
FACE_NORMALS	0x0008	Includes the vertex normals in the undo unit.
FACE_FLAGS	0x0010	Includes the face flags in the undo unit.
FACE_INDEX	0x0020	Includes the vertex indices in the undo unit.
FACE_SMOOTH	0x0040
FACE_DIFFUSE	0x0080
FACE_SPECULAR	0x0100
FACE_UVGROUP	0x0200
FACE_SELGROUP	0x0400
FACE_ALL	0xFFFF