<p dir="ltr">I reported a bug issue id 0015892. It's a bug for opengl2. Extra cells are shown in 2nd/3rd renderer layers. I've seen the bug in 6.3 and 7.0rc1. I've checked with the official 64 bit python release and my own 6.3 builds.</p>
<div class="gmail_quote">On Dec 17, 2015 2:39 PM, "David E DeMarle" <<a href="mailto:dave.demarle@kitware.com">dave.demarle@kitware.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><span style="font-size:13px">The </span><span style="font-size:13px">VTK</span><span style="font-size:13px"> developement team is happy to announce that </span><span style="font-size:13px">VTK</span><span style="font-size:13px"> </span><span style="font-size:13px">7.0</span><span style="font-size:13px"> has entered</span><br style="font-size:13px"><span style="font-size:13px">the </span><span style="font-size:13px">release</span><span style="font-size:13px"> </span><span style="font-size:13px">candidate</span><span style="font-size:13px"> stage!</span><br style="font-size:13px"><br style="font-size:13px"><span style="font-size:13px">You can find the source, data, and vtkpython binary packages here:</span><br style="font-size:13px"><br style="font-size:13px"><a href="http://www.vtk.org/download/#candidate" rel="noreferrer" style="font-size:13px" target="_blank">http://www.vtk.org/download/#candidate</a><br style="font-size:13px"><br style="font-size:13px"><span style="font-size:13px">Please try this version of </span><span style="font-size:13px">VTK</span><span style="font-size:13px"> and report any issues to the list or the</span><br style="font-size:13px"><span style="font-size:13px">bug tracker so that we can try to address them before </span><span style="font-size:13px">VTK</span><span style="font-size:13px"> 7.0.0</span><span style="font-size:13px"> final.</span><br style="font-size:13px"><br style="font-size:13px"><span style="font-size:13px">The official </span><span style="font-size:13px">release</span><span style="font-size:13px"> notes will be available when </span><span style="font-size:13px">VTK</span><span style="font-size:13px"> final is </span><span style="font-size:13px">released</span><br style="font-size:13px"><span style="font-size:13px">in the next few weeks. In the meantime here is a </span><span style="font-size:13px">preview</span><span style="font-size:13px">:</span><br style="font-size:13px"><br style="font-size:13px"><div>The big news is that the OpenGL"new" backend is now the default and that VTK is for the first time compatible with Python 3.</div><div><br></div><div>Other new functionality includes:</div><div>- the introduction of the Flying Edges SMP optimized (very fast) isocontour filter</div><div>- a new and improved <span style="font-size:13px">vtkPUnstructuredGridGhostCells filter that efficiently creates ghost cells in DMP parallel contexts. </span></div><div><div><div>- allow the Python Global Interpreter Lock (GIL) for multithreaded Python routines</div><div></div></div></div><div><div><div>- offscreen rendering through EGL now supported<br></div><div>- remove vtkFreeTypeUtilities</div></div></div><div><br></div><div><span style="font-size:13px">Improvements to existing functionality includes:</span></div><div><span style="font-size:13px">- optimizations to the Contingency Statistics class which provides a significant </span><span style="font-size:13px">performance boost when using only integer or floating point data</span><br></div><div>- improved MPAS file handling including <span style="font-size:13px">including arbitrary </span><span style="font-size:13px">vertical dimensions and more general attribute reading</span></div><div><div><span style="font-size:13px">- m</span><span style="font-size:13px">odernize depth sorting code. In tests the improved depth sort is 2 to 3x faster than before.</span></div><div></div></div><div><div>- <span style="font-size:13px">fixes to the ExodusWriter, especially when handling side sets and node</span> <span style="font-size:13px">set data.</span><br></div></div><div><div>- updates to the PLY Writer</div></div><div><br></div><div>Some of the changes that affect building and using VTK in applications include:</div><div>- the OpenGL2 backend requires newer rendering capabilities than its predecessor</div><div><div>- <span style="font-size:13px">QtWebKit is no longer part of the Qt build group and thus easier to do without</span><br></div><div></div></div><div><span style="font-size:13px">- vtkStreamer and related classes are deprecated; use vtkStreamTracer </span><span style="font-size:13px">instead.</span><br></div><div><span style="font-size:13px">- a new option (when building with newer CMake) to build with C++11 support</span><br></div><div><div><div>- a<span style="font-size:13px">dd support for Visual Studio 2015</span></div><div>- <span style="font-size:13px">Java 1.6 is now the minimum version that is tested; 1.5 may not work</span><br></div></div><div>- remove support for OSX10.5 Leopard and the Carbon (OSX9 compatibility layer) API<br></div><div>- remove support for gcc 4.1</div><div><br></div><div><div><span style="font-size:13px">And many bug fixes across the codebase.</span></div><div><span style="font-size:13px"><br></span></div><span style="font-size:13px">We hope you enjoy this </span><span style="font-size:13px">release</span><span style="font-size:13px"> of </span><span style="font-size:13px">VTK</span><span style="font-size:13px">! As always, contact Kitware and</span><br style="font-size:13px"><span style="font-size:13px">the mailing lists for assistance.</span><br style="font-size:13px"><br style="font-size:13px"><span style="font-size:13px">Thanks,</span><br><div><br clear="all"><div><div>David E DeMarle<br>Kitware, Inc.<br>R&D Engineer<br>21 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: <a href="tel:518-881-4909" value="+15188814909" target="_blank">518-881-4909</a></div></div>
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