# 3D model STL color

**URL:** <https://discourse.slicer.org/t/3d-model-stl-color/36543>\
**Category:** Support\
**Created:** [June 1, 2024, 10:00pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543 "2024-06-01T22:00:40Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Assaad](https://avatars.discourse-cdn.com/v4/letter/a/958977/32.png) [@Assaad](https://discourse.slicer.org/u/Assaad)\
**Post date:** [June 1, 2024, 10:00pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/1 "2024-06-01T22:00:40Z")

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Hi,  
I have a question about the 3D model export into STL file  
I have no problem with exporting the 3D model  
However, when I include it into a powerpoint presentation, the 3D model is all time in gray color and I can not conserve the color used in the segmentation.  
Please can You help me !

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 1, 2024, 10:10pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/2 "2024-06-01T22:10:32Z")

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STL file can only store the surface geometry and nothing else (no colors, no material properties, no lighting, …). If you cannot find a way to set these in powerpoint then you can try to export as obj or glTF format (using OpenAnatomy extension), which preserve color.

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**Author:** ![Assaad](https://avatars.discourse-cdn.com/v4/letter/a/958977/32.png) [@Assaad](https://discourse.slicer.org/u/Assaad)\
**Post date:** [June 2, 2024, 6:40am UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/3 "2024-06-02T06:40:59Z")

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Thank you so much it works with an obj file but I did not find the extension OpenAnatomy in the extension list. How can I get it?

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 2, 2024, 12:59pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/4 "2024-06-02T12:59:58Z")

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You can use the search box:

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/5/6/56546107a5493573d98d7a1fc0ba33942be195c8.png)

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**Author:** ![Assaad](https://avatars.discourse-cdn.com/v4/letter/a/958977/32.png) [@Assaad](https://discourse.slicer.org/u/Assaad)\
**Post date:** [June 3, 2024, 4:28pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/5 "2024-06-03T16:28:53Z")

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I finally downloaded the extension. Please if you have any tutorial or youtube video link for how to use this extension please share it with me.

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [June 4, 2024, 4:05pm UTC](https://discourse.slicer.org/t/3d-model-stl-color/36543/6 "2024-06-04T16:05:47Z")

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You can find all information in the [extension documentation](https://github.com/PerkLab/SlicerOpenAnatomy?tab=readme-ov-file#slicer-open-anatomy-extension). If anything is not clear then you can ask here.