# Uncorrect Polydata Mesh via OpenIGTLinkIf

**URL:** https://discourse.slicer.org/t/uncorrect-polydata-mesh-via-openigtlinkif/40642
**Category:** Support
**Created:** [December 11, 2024, 9:50pm UTC](https://discourse.slicer.org/t/uncorrect-polydata-mesh-via-openigtlinkif/40642 "2024-12-11T21:50:47Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Filippo\_Parronchi](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/filippo_parronchi/32/77852_2.png) [@Filippo\_Parronchi](https://discourse.slicer.org/u/Filippo_Parronchi)
#### Post date: [December 11, 2024, 9:50pm UTC](https://discourse.slicer.org/t/uncorrect-polydata-mesh-via-openigtlinkif/40642/1 "2024-12-11T21:50:47Z")

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Hello everyone,

I am sending polydata (meshes) via the IGTLink protocol, specifically ModelNodes obtained from the segments generated by TotalSegmentator. On the Unity side, I have a reception script to reconstruct the mesh. I assume the script is correct, but something strange is happening.

Some meshes are reconstructed correctly, while others are always reconstructed incorrectly (for example, the Liver, as shown in the figure), even though the listening and reconstruction logic is the same. Could the issue be related to the triangles? Any advice would be greatly appreciated.

Thanks in advance!

 ![IMG_6984](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/3/f328642dc0d7a2db8a1808ed6266ff89147e2f2f.jpeg)