# Open Anatomy Export in gltf format

**URL:** https://discourse.slicer.org/t/open-anatomy-export-in-gltf-format/34819
**Category:** Support
**Tags:** extensions-manager, file-export, openanatomy
**Created:** [March 11, 2024, 10:43am UTC](https://discourse.slicer.org/t/open-anatomy-export-in-gltf-format/34819 "2024-03-11T10:43:57Z")
**Posts on this page:** 1
**Showing post:** 5

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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: [March 17, 2024, 12:13am UTC](https://discourse.slicer.org/t/open-anatomy-export-in-gltf-format/34819/5 "2024-03-17T00:13:29Z")

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> [@Caterina](#):
>
> Why if I export only the segmentation, the lung models are correctly visible and the vessels not?

The gltTF file is generated the same way, regardless of the input is a segmentation or a model tree. Please compare the two files (they are just simple text files that you can open in any text editor or text comparison tool) and let us know what the differences are.

However, it would better if you used a 3D viewer that propertly supports transparent surface rendering (can do depth sorting, depth peeling, or similar methods).

> [@Caterina](#):
>
> So the correct procedure is to convert segmentation to models, set the PBR interpolation and then export in gltf format using Open Anatomy Export?

What you describe works but more complex than necessary.

> [@Caterina](#):
>
> The vessels segmentation in Slicer (using chest ct of your database) appeared with poor dimensional resolution (vessels seems to be unreal). Can I ask you the best results concerning lung vessels segmentation and what resolution and type of source dicoms should be considered?

For high-quality vessel segmentation you need high-resolution images. Typical resolution for surgical planning is 1mm. For vessel segmentation (especially for veins) you may need contrast agent.

* * *

For your information, Slicer now offers fully automated lung, lobes, airways, and vessel segmentation. There are several active discussions about it see for example here:

> [@Using MONAI label to fine tune the vessel segmentation](https://discourse.slicer.org/t/using-monai-label-to-fine-tune-the-vessel-segmentation/34869):
>
> Hi, I have acheived robust and satisfactory segmentation result when using lungCTsegmenter before. [image] However, if i use other samples(LIDC-IDRI dataset), most of the results have lung/vessel leaks. Should I use MONAI label to finetune the vessel segmentation part, or this is not a good use case? Since I watch this demo: [[MONAI Label Workshop - Project Week 37] ](https://www.youtube.com/watch?v=wtiEe_jiUzg&t=5531s) (1:35:27) and t…

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