/// <summary>
/// Retrieves the top RenderState from stack</summary>
/// <returns>Top RenderState in stack</returns>
public RenderState Peek()
{
if (m_contents.Count == 0)
{
return(null);
}
RenderState topOfStack = m_contents[m_contents.Count - 1];
return(topOfStack.Clone() as RenderState);
}
