# Import 3D volume meshes

**URL:** <https://community.freefem.org/t/import-3d-volume-meshes/945>\
**Category:** General Discussion\
**Created:** [April 25, 2021, 6:07pm UTC](https://community.freefem.org/t/import-3d-volume-meshes/945 "2021-04-25T18:07:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mrbenson](https://avatars.discourse-cdn.com/v4/letter/m/d07c76/32.png) [@mrbenson](https://community.freefem.org/u/mrbenson)\
**Post date:** [April 25, 2021, 6:07pm UTC](https://community.freefem.org/t/import-3d-volume-meshes/945/1 "2021-04-25T18:07:34Z")

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Hello,

I exported a volume mesh in two different formats and import them :

- gmsh file format using gmshload3 : it works
- medit file format using readmesh3 : i have some “badly orienated tet”

These two files contain exactly the same informations.

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**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\
**Post date:** [April 26, 2021, 7:10am UTC](https://community.freefem.org/t/import-3d-volume-meshes/945/2 "2021-04-26T07:10:49Z")

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> [@mrbenson](#):
>
> badly orienated tet

Effectively in case of gmshload3 no test are done in freefem++,

Thank, I will correct this soon has possible.

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**Author:** ![yongxing](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/yongxing/32/3632_2.png) [@yongxing](https://community.freefem.org/u/yongxing)\
**Post date:** [April 27, 2021, 9:25am UTC](https://community.freefem.org/t/import-3d-volume-meshes/945/3 "2021-04-27T09:25:17Z")

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Hi,  
I just did a similar simulation by importing a Tet mesh as attached, which was OK using:

mesh3 Th=readmesh3(“ff.mesh”);  
plot(Th);  
 ![image](https://canada1.discourse-cdn.com/flex030/uploads/freefem/original/1X/bcf794e69ea162aabc6e27b8e04e222d9d4b3854.png)  
You may have a try.  
Best,  
Yognxing.  
[ff.mesh](https://community.freefem.org/uploads/short-url/7ST9EJk2OsxsPs0FqsNfx7jnQkd.mesh) (589.6 KB)