[Imstk-developers] Multiple materials per import

[Andinet Enquobahrie]

I would think we will need a scene graph support at some point in iMSTK

For example,

https://www.sofa-framework.org/community/doc/main-principles/scene-graph/

On Mon, Sep 18, 2017 at 11:39 AM, Milef, Nicholas Boris <milefn at rpi.edu>
wrote:

> Yes, it's very common to have this functionality, and many meshes we have
> use this. Currently, I have to individually export each material as a
> separate mesh, but this gets tedious when you end up with hundreds of
> meshes and have to separate/export each one individually. Also, managing
> these is a pain. Note that a single face can only have one material
> assigned to it (i.e., not layered materials).
>
> We still don't have the scene graph, but what if we introduce one and then
> when you import a mesh it adds a new node (called MeshGroup) under root
> (the scene) and then nodes (meshes) under the MeshGroup? Or it could be
> called MeshObject or something, etc.
> ------------------------------
> *From:* Sreekanth Arikatla [sreekanth.arikatla at kitware.com]
> *Sent:* Monday, September 18, 2017 11:03 AM
> *To:* Milef, Nicholas Boris
> *Cc:* imstk-developers at imstk.org
> *Subject:* Re: [Imstk-developers] Multiple materials per import
>
> Having mesh split and maintained as separate pieces might complicate
> imstk's geometry mappers. Do you have a use case from one of the projects?
>
> On Mon, Sep 18, 2017 at 10:52 AM, Milef, Nicholas Boris <milefn at rpi.edu>
> wrote:
>
>> This question has a subtle difference compared to a previous question I
>> asked before, but should we add support for mesh files with multiple
>> materials?
>>
>> When the mesh gets imported, the regions with a different material would
>> get split into a new mesh. Or should we introduce a new primitive such as a
>> MeshGroup to handle this? Or should we keep them as separate, unrelated
>> meshes?
>>
>> _______________________________________________
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>>
>>
>
>
> --
> Sreekanth Arikatla, Ph.D.,
> Senior R&D Engineer,
> Kitware, Inc. <http://www.kitware.com>, Carrboro, NC.
>
>
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>
>


-- 
Andinet Enquobahrie, Ph.D., MBA
Director of Medical Computing
Kitware, Inc.

http://www.kitware.com
(919) 969-6990 x311 <%28919%29%20969-6990%20x311>
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