(Quoted from here)As with Nuke Non-commercial, Mari Non-commercial includes most of the functionality of the commercial version of the software, although there are some important restrictions.
First, the software saves in its own native MNC file format which cannot be loaded into the commercial edition.
Export is capped at 4K resolution and 16-bit colour per channel, and limited to PSD, PNG, TGA and JPEG formats: you can’t export TIF, HDR, DDS or Ptex files.
Users are also limited to five objects, and six UV texture patches per object, although the number of channels and layers that can be used is not restricted.
In addition, Python scripting is disabled, as is the use of custom shaders.
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