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<div>I don't know how texture coordinates are being used in your application, but I suspect that your overlapping points have different texture coordinates, which is probably creating (intentionally) discontinuous colors. When you merge the points, the texture
coordinates get averaged together.</div>
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<div>If this is the case, I can't think of a straightforward way to retain the texture coordinates and also create smooth normals.</div>
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<div>-Ken</div>
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<span style="font-weight:bold">From: </span>Den Fairol <<a href="mailto:den.fairol@infovalley.net.my">den.fairol@infovalley.net.my</a>><br>
<span style="font-weight:bold">Date: </span>Tuesday, March 18, 2014 7:27 PM<br>
<span style="font-weight:bold">To: </span>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<span style="font-weight:bold">Subject: </span>[EXTERNAL] RE: [Paraview] Surface representation inconsistency<br>
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<p class="MsoNormal">Yeah, that 3-step process saves the day! No problem executing the ‘Clean’ filter on ParaView 4.1.0 stable version. However, the texture map is abit off. Could I tweak the transformation process so much so that the texture coordinates are
retained?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks and Regards,<o:p></o:p></p>
<p class="MsoNormal">Den<o:p></o:p></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; ">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; "> Moreland, Kenneth [<a href="mailto:kmorel@sandia.gov">mailto:kmorel@sandia.gov</a>]
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<b>Sent:</b> 18 March 2014 10:47 PM<br>
<b>To:</b> Den Fairol<br>
<b>Cc:</b> <a href="mailto:paraview@paraview.org">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Surface representation inconsistency<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">If Generate Surface Normals is not creating smooth normals by default, it probably means that your mesh is a polygon soup. That is, the points in your mesh are repeated and the connections of adjacent
polygons is missing. If this is the case, the Generate Surface Normals can't find the curve of the surface and instead just finds the normal of the attached polygon.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">If this is the case, you can solve the problem by merging coincident points. Normally you do that with the "Clean" filter. Unfortunately, I notice that the Clean filter is crashing my version of
ParaView (I've raised a bug for that, too). If that happens to you, you can instead run the "Clean to Grid" filter and then "Extract Surface" filter. After your data is cleaned, run Generate Surface Normals.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Ken<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Den Fairol <<a href="mailto:den.fairol@infovalley.net.my">den.fairol@infovalley.net.my</a>><br>
<b>Date: </b>Monday, March 17, 2014 8:25 PM<br>
<b>To: </b>Kenneth Moreland <<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>><br>
<b>Cc: </b>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] RE: [Paraview] Surface representation inconsistency<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Ken,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">It turns out the bug is only prevalent in ParaView, no such issue in ParaViewWeb which the platform of interest. Thanks for the heads up though.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Oddly enough, the “Generate Surface Normals” ‘trick’ only works during interaction. Pixelation returns when I stop moving the object around. Do I need to change the default settings for that filter?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Den<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; ">From:</span></b><span style="font-size: 10pt; font-family: Tahoma, sans-serif; color: black; "> Moreland, Kenneth [<a href="mailto:kmorel@sandia.gov">mailto:kmorel@sandia.gov</a>]
<br>
<b>Sent:</b> 17 March 2014 11:45 PM<br>
<b>To:</b> Den Fairol; <a href="mailto:paraview@paraview.org">paraview@paraview.org</a><br>
<b>Subject:</b> Re: [Paraview] Surface representation inconsistency</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">Den,</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">The first issue appears to be a bug. I've submitted a bug report: <a href="http://www.paraview.org/Bug/view.php?id=14638">http://www.paraview.org/Bug/view.php?id=14638</a>. You should be able to
work around the problem by making some other superficial change to the data or display. For example, changing the color should do the trick.</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">The second issue is probably because you don't have surface normals. Try running the "Generate Surface Normals" filter on your data.</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black">-Ken</span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Den Fairol <<a href="mailto:den.fairol@infovalley.net.my">den.fairol@infovalley.net.my</a>><br>
<b>Date: </b>Sunday, March 16, 2014 6:06 PM<br>
<b>To: </b>"<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>" <<a href="mailto:paraview@paraview.org">paraview@paraview.org</a>><br>
<b>Subject: </b>[EXTERNAL] [Paraview] Surface representation inconsistency<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;color:black"> </span><span style="color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hi guys,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I have two issues when trying to display a surface representation:
<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span style="color:black"><span style="mso-list:Ignore">1.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman'; ">
</span></span></span><!--[endif]--><span style="color:black">Inconsistent rendered images between still and interactive as shown in the first two pictures. It should be showing the muscle blockset during interaction instead of the skeletal blockset. It appears
that last known render is still presiding in the memory during interaction. How can I flush it?<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span style="color:black"><span style="mso-list:Ignore">2.<span style="font-style: normal; font-variant: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman'; ">
</span></span></span><!--[endif]--><span style="color:black">Inconsistent lighting effect on different objects as depicted in the last image. Changing from Flat to Gouraud does not affecting the left side object, it still would apply Flat lighting, which in
turn causing it to appear pixelated. How do I remedy this?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Den<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="402" height="315" id="Picture_x0020_6" src="cid:image001.png@01CF4354.9CD9B160"><img border="0" width="402" height="315" id="Picture_x0020_7" src="cid:image002.png@01CF4354.9CD9B160"></span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"> </span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><img border="0" width="491" height="321" id="_x0000_i1027" src="cid:image003.png@01CF4354.9CD9B160"></span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
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