public ObjectXYZW(ObjectXYZ obxyz, double _W)
{
this.X = obxyz.X;
this.Y = obxyz.Y;
this.Z = obxyz.Z;
this.W = _W;
}
ObjectXYZW tangent; //切线
public Vertex(ObjectXYZ _position, ObjectXYZ _normal, ObjectXY _texcoord1, ObjectXY _texcoord2, ObjectXYZW _tangent)
{
this.position = _position;
this.normal = _normal;
this.texcoord1 = _texcoord1;
this.texcoord2 = _texcoord2;
this.tangent = _tangent;
}