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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">I guess where I'm stuck at is why we have an initialize function to begin with. I still can't think of a use-case where we can't either 1) make a new mesh or 2) modify the components
of the old mesh.
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<div id="divRpF585415" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> Sreekanth Arikatla [sreekanth.arikatla@kitware.com]<br>
<b>Sent:</b> Thursday, July 27, 2017 4:37 PM<br>
<b>To:</b> Milef, Nicholas Boris<br>
<b>Cc:</b> imstk-developers@imstk.org<br>
<b>Subject:</b> Re: [Imstk-developers] Clearing surface mesh data on intialization<br>
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<div dir="ltr">Hi Nick,
<div> If you want to preserve the normals, you can add normals to the Initialize function arg. If the normals are supplied, initialize clears the previous data before assigning. </div>
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<div class="gmail_quote">On Thu, Jul 27, 2017 at 4:01 PM, Milef, Nicholas Boris <span dir="ltr">
<<a href="mailto:milefn@rpi.edu" target="_blank">milefn@rpi.edu</a>></span> wrote:<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">No, I don't. I need to preserve the original normals that ASSIMP imports because ASSIMP calculates the normals correctly. Otherwise, I can't identify the UV seams.
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<div>I can just do this computation in the SurfaceMeshRenderDelegate, but I'm not sure if the normals are used elsewhere after reinitializing the meshes. But isn't reinitializing a mesh dangerous in a multithreaded environment anyway?<br>
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<div id="m_2494556280979792691divRpF630068" style="direction:ltr"><font face="Tahoma" size="2" color="#000000"><b>From:</b> Sreekanth Arikatla [<a href="mailto:sreekanth.arikatla@kitware.com" target="_blank">sreekanth.arikatla@kitware.<wbr>com</a>]<br>
<b>Sent:</b> Thursday, July 27, 2017 3:55 PM
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<b>To:</b> Milef, Nicholas Boris<br>
<b>Cc:</b> <a href="mailto:imstk-developers@imstk.org" target="_blank">imstk-developers@imstk.org</a><br>
<b>Subject:</b> Re: [Imstk-developers] Clearing surface mesh data on intialization<br>
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<div dir="ltr">It could be used in some cases depending on the scenario. Do you plan to call this at every frame?
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<div class="gmail_quote">On Thu, Jul 27, 2017 at 3:53 PM, Milef, Nicholas Boris <span dir="ltr">
<<a href="mailto:milefn@rpi.edu" target="_blank">milefn@rpi.edu</a>></span> wrote:<br>
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">Is that a useful use case though? Why not just make a new mesh?
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<div id="m_2494556280979792691m_7396907404221061107divRpF289251" style="direction:ltr">
<font face="Tahoma" size="2" color="#000000"><b>From:</b> Sreekanth Arikatla [<a href="mailto:sreekanth.arikatla@kitware.com" target="_blank">sreekanth.arikatla@kitware.co<wbr>m</a>]<br>
<b>Sent:</b> Thursday, July 27, 2017 3:52 PM<span><br>
<b>To:</b> Milef, Nicholas Boris<br>
<b>Cc:</b> <a href="mailto:imstk-developers@imstk.org" target="_blank">imstk-developers@imstk.org</a><br>
<b>Subject:</b> Re: [Imstk-developers] Clearing surface mesh data on intialization<br>
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<div dir="ltr">Hi Nick,
<div> This is cleared in case one wants to reinitialize the mesh with a different data. Initialize should only be called at initilization or at runtime if the mesh data itself changes. </div>
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<div class="gmail_quote">On Thu, Jul 27, 2017 at 3:31 PM, Milef, Nicholas Boris <span dir="ltr">
<<a href="mailto:milefn@rpi.edu" target="_blank">milefn@rpi.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex; border-left:1px #ccc solid; padding-left:1ex">
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<div style="direction:ltr; font-family:Tahoma; color:#000000; font-size:10pt">I'm modifying the SurfaceMesh class currently, but why is all the data cleared on initialization? Is this necessary? I ask because I need this data to correct for the normals seams.</div>
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<div dir="ltr"><a href="http://www.kitware.com" style="font-size:12.8px" target="_blank">Kitware, Inc.</a>, Carrboro, NC.
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