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Problem with SLPK Format

My names is Andres.
I am using pix4d to make a 3d mesh and export it in SLPK format to ArcGIS and I see that although the SLPK format is a compressed format, the results I am getting weigh hundreds of megabytes, for example, 593 megabytes or 766, 144 etc. . These three values ​​are three examples that I have made. I know it is a beta format and I understand that it will be in development, but I have made the same examples with ESRI’s drone2map software, which is based on the pix4d engine and gives me 40 megabytes. It’s too much difference. I am interested to know if you could explain to me why this may be happening since the monthly licenses of pix4d at the moment interest me a lot for my work, but I cannot obtain such heavy products since the SLPK format is supposed to be a compressed format .

I remain attentive to your response.

Thank you


I would advise changing the settings for the export (see yellow section in the screenshot below). This way, you will be able to have control on the size of the SLPK file.

You can tweak the settings for your output 3D textured mesh in the LOD (level of details) format by adjusting the Number of Levels and the Texture Quality. The lower the number of levels and the texture quality, the smaller the size of your output files. For more information about exporting the 3D texture mesh, click here.

Were you able to upload the SLPK file in ArcGIS Online or ArcGIS Pro? Have you tried uploading SLPK files generated with other software, in order to check if this problem is Pix4D or ArcGIS-related?

If the SLPK file failed to be uploaded, then you could use I3S tool to convert the file to the newest i3s specification or validate your existing SLPK. This is a command line tool that should first be cloned and installed with Git (git clone) as follows:

  1. go to the command prompt.
  2. type cd and the path to the directory that contains the newly installed i3s_converter.exe
  3. type i3s_converter "path\to\your\slpk\file\filename.slpk"
  4. a new version of the SLPK file will be stored along with a JSON file in the folder where the installer file i3s_converter.exe is located.

  1. try reuploading this new file on ArcGIS.

I hope this could help.