/// <summary>
/// Clear all draw calls
/// </summary>
public void Clear()
{
for (int i = 0; i < m_buffers.Count; i++)
{
GeometryBuffer buffer = m_buffers[i];
if (!buffer.IsEmpty())
{
m_buffers[i].Clear();
}
}
ReleaseOldData();
m_visible = false;
}