[Imstk-developers] Clearing surface mesh data on intialization

[Sreekanth Arikatla]

Hi Nick,
            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.

On Thu, Jul 27, 2017 at 4:01 PM, Milef, Nicholas Boris <milefn at rpi.edu>
wrote:

> 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.
>
> 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?
> ------------------------------
> *From:* Sreekanth Arikatla [sreekanth.arikatla at kitware.com]
> *Sent:* Thursday, July 27, 2017 3:55 PM
>
> *To:* Milef, Nicholas Boris
> *Cc:* imstk-developers at imstk.org
> *Subject:* Re: [Imstk-developers] Clearing surface mesh data on
> intialization
>
> It could be used in some cases depending on the scenario. Do you plan to
> call this at every frame?
>
>
> On Thu, Jul 27, 2017 at 3:53 PM, Milef, Nicholas Boris <milefn at rpi.edu>
> wrote:
>
>> Is that a useful use case though? Why not just make a new mesh?
>> ------------------------------
>> *From:* Sreekanth Arikatla [sreekanth.arikatla at kitware.com]
>> *Sent:* Thursday, July 27, 2017 3:52 PM
>> *To:* Milef, Nicholas Boris
>> *Cc:* imstk-developers at imstk.org
>> *Subject:* Re: [Imstk-developers] Clearing surface mesh data on
>> intialization
>>
>> Hi Nick,
>>             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.
>>
>> On Thu, Jul 27, 2017 at 3:31 PM, Milef, Nicholas Boris <milefn at rpi.edu>
>> wrote:
>>
>>> 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.
>>>
>>> _______________________________________________
>>> Imstk-developers mailing list
>>> Imstk-developers at imstk.org
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>>>
>>>
>>
>>
>> --
>> Sreekanth Arikatla, Ph.D.,
>> Senior R&D Engineer,
>> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>>
>>
>
>
> --
> Sreekanth Arikatla, Ph.D.,
> Senior R&D Engineer,
> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>
>


-- 
Sreekanth Arikatla, Ph.D.,
Senior R&D Engineer,
Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
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