/// <summary>
 /// Indicates whether this instance and a specified object are equal.
 /// </summary>
 /// <param name="other">
 /// The object to compare this instance to.
 /// </param>
 /// <returns>
 /// Whether or not this instance is equal to the specified object.
 /// </returns>
 public bool Equals(VertexPositionNormal other)
 {
     return(this.Position.Equals(other.Position) && this.Normal.Equals(other.Normal));
 }
 /// <summary>
 /// Indicates whether this instance and a specified object are equal.
 /// </summary>
 /// <param name="other">
 /// The object to compare this instance to.
 /// </param>
 /// <returns>
 /// Whether or not this instance is equal to the specified object.
 /// </returns>
 public bool Equals(VertexPositionNormal other)
 {
     return this.Position.Equals(other.Position) && this.Normal.Equals(other.Normal);
 }