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OrtogOnBlender beta for Blender 2.80 available for download


cogitas3d writes:

Finally, the version of OrtogOnBlender (beta) for Blender 2.80 is available for download.

Originally the addon was developed for the planning of orthognathic surgery, however, a series of features are used by users of other fields, among them we can mention:

- Photogrammetry with OpenMVG + OpenMVS;
- Complex boolean with Cork;
- Direct importation of CT-Scan (DICOM) with DicomToMesh;
- Segmentation tools.

Making these tools available to users that are migrating to Blender 2.80 was our biggest inspiration.

We prepare installation tutorials for each operating system:

The tutorials are in Portuguese, use Google Translator, but do not copy and paste the translated commands! Use the original version of them!

Any questions, get in touch with WhatsApp: +55 66 999 037 511

A big hug!

About Author

Cícero Moraesícero_Moraes


  1. I ended up getting this to work for me just last night for the first time, but I did have to run my data through 3d Slicer before I could get it into Blender. Thought this tidbit of information would bear repeating here. Thanks for helping me find out what kind of person I am on the inside. ;)

    Anyone have any ideas how to convert the resulting slices of data into voxel data?

  2. Hey Cicero!

    Thank you for this amazing work!

    I kind of made it work on macOS 11.0. However 50% of the time during some photogrammetry work I was getting some kind of Python errors. So decided to run all the installation steps again and it seems that there are problems with the following step:

    python3 -m ensurepip && \
    python3 -m pip install opencv-python && \
    python3 -m pip install dlib && \
    python3 -m pip install imutils

    This is the error message that I get:

    Installing build dependencies ... error
    ERROR: Command errored out with exit status 1:

    Don't really know what should be done now - could you help me here?

    Thanks a lot from Stuttgart,

    • Thank you for your answer!

      I did a quick test now with some photos of my bonsai tree. It works with the SMVS+MeshLab method, however it does not work with the Standard OpenMVG+OpenMVS method, giving the following error:

      Error: Traceback (most recent call last):
      File "/Users/rudolfneumerkel/Programs/OrtogOnBlender/Blender280/", line 145, in execute
      return import_obj.load(context, **keywords)
      File "/Users/rudolfneumerkel/Programs/OrtogOnBlender/Blender280/", line 933, in load
      float_func = get_float_func(filepath)
      File "/Users/rudolfneumerkel/Programs/OrtogOnBlender/Blender280/", line 840, in get_float_func
      file = open(filepath, 'rb')
      FileNotFoundError: [Errno 2] No such file or directory: '/var/folders/14/55f1vpy14tq2_st30dv5zjjr0000gn/T/tmpm6vjfcjx/MVS/scene_dense_mesh_texture.obj'

      Do you know why this is happening?


  3. Hi All,

    I have been working in 3D for a while, but I am new to Blender. My initial interest is in OrtogOnBlender. I work with a couple of different scanning devices that create point clouds, also with DICOM medical scans.

    My question is can I use the current version of Blender (2.91.0) or should I roll back to version 2.80?

    I am interested in using this software on my computer and also in VR using HTC Vive or another device.

    Thank you for any information or tips you can provide.


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