<div dir="ltr">What is the world space size of the triangles? Are they small enough to push the limits of GL float precision?</div><div class="gmail_extra"><br clear="all"><div>David E DeMarle<br>Kitware, Inc.<br>R&D Engineer<br>
21 Corporate Drive<br>Clifton Park, NY 12065-8662<br>Phone: 518-881-4909</div>
<br><br><div class="gmail_quote">On Tue, Nov 12, 2013 at 6:10 PM, Frank Gao <span dir="ltr"><<a href="mailto:Frank.Gao@guidemia.com" target="_blank">Frank.Gao@guidemia.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Hi All,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">We are having some problems with the surface rendering in VTK. If the users don’t set their graphics card preference to “Quality”, the surface rendering will show a lot of “ghost” lines between the triangles, but they are not the polydata edges. Completely display artifact. When the triangles are small, this is much more obvious. I places a picture in the following link. The left one has problem. The right one is when preference is set to “quality”.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><a href="https://www.dropbox.com/s/1kvpzia57uggist/vtk_polydata_rendering_case.PNG" target="_blank">https://www.dropbox.com/s/1kvpzia57uggist/vtk_polydata_rendering_case.PNG</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Because of this we have to tell the users to change their graphics card setting. Is this something we can do in the code? Thanks a lot in advance.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Regards,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","serif";color:#1f497d">Frank Gao<u></u><u></u></span></p></div></div><br>_______________________________________________<br>
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