/// <summary>
 /// Render
 /// </summary>
 /// <param name="grDevice"></param>
 /// <param name="vertexCount"></param>
 /// <param name="triCount"></param>
 public void Render(Device grDevice, int vertexCount)
 {
     grDevice.DrawIndexedPrimitive(PrimitiveType.TriangleList, 0, 0, vertexCount, IndexStart, TriCount);
     MyPerformanceCounter.PerCameraDrawWrite.TotalDrawCalls++;
 }