# model maker- external (binary) nifti mask

**URL:** https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475
**Category:** Support
**Created:** [July 12, 2018, 4:35pm UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475 "2018-07-12T16:35:33Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![Moran\_Artzi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/moran_artzi/32/9566_2.png) [@Moran\_Artzi](https://discourse.slicer.org/u/Moran_Artzi)
#### Post date: [July 12, 2018, 4:35pm UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475/1 "2018-07-12T16:35:34Z")

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Operating system: Win 64  
Slicer version: 4.8.1

Hi all,  
I’m trying to use model maker to do 3D visualization of external (binary) nifti mask  
On the older Slicer version i used to upload and assign such a mask as label and then a model could be easily produced  
How should this be done in the new version?

Thanks  
Moran

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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: [July 12, 2018, 5:09pm UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475/2 "2018-07-12T17:09:59Z")

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Model maker module has not changed in the last couple of years, so you can still use it the same way as before.

If you wanted to edit the labelmap then you would import it to a segmentation node and there are many new possibilities around there. But if you just want to convert a labelmap to models then Model maker should work just fine.

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### Author: ![Moran\_Artzi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/moran_artzi/32/9566_2.png) [@Moran\_Artzi](https://discourse.slicer.org/u/Moran_Artzi)
#### Post date: [July 12, 2018, 5:46pm UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475/3 "2018-07-12T17:46:13Z")

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Thanks for your fast reply

I uploaded the Lesion file

 ![](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/d/d/dd1f77519f52d6cf9a9b65a410060b085d9b52ea.png)

But at the model maker, on the IO: Input/output parameters Tab

I can not see this file

What should I change?

 ![](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/8/9889067ce01bb4648a60e507de846459e780097c.png)

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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: [July 12, 2018, 6:01pm UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475/4 "2018-07-12T18:01:38Z")

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Model maker requires labelmap volume as input. In the _Add data_ dialog, check _Label_ option to indicate that the file should be interpreted as labelmap. If you’ve forgot to set it when you loaded the file, you can convert scalar volume to labelmap volume in Volumes module.

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### Author: ![Moran\_Artzi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/moran_artzi/32/9566_2.png) [@Moran\_Artzi](https://discourse.slicer.org/u/Moran_Artzi)
#### Post date: [July 13, 2018, 4:20am UTC](https://discourse.slicer.org/t/model-maker-external-binary-nifti-mask/3475/5 "2018-07-13T04:20:57Z")

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Works perfect, Thanks a lot!