Hi,
Thx for your answer.
The file format is specified here:
https://docs.otoy.com/#60The%20Scatter%20NodeI think this would do the trick. I'd write (or have it written!) a script or program that will convert PTR (=Krakatoa), BIN (Realflow) or any other file containing particles to one or several CSV files (when it comes to animations) in the format specified above. There is no need to see the particles in the Carrara view port, as the Octane IPR should be enough. All particles should then be represented by only one object as it is described in the manual when it comes to the Octane Scatter node.
Other information like temperature, speed, density, color, etc. need not to be implemented in the first place. Of course, if you want to make a statement, I won't say "no" to a plugin that supports "real" particle files such as PRT, ABC or BIN. There is quite some documentation on Alembic (
https://github.com/alembic/alembic) and Krakatoa PRT (
https://github.com/ThinkboxSoftware/PRT-IO-Library).
I'd also invest some money if you do contractual work and if you think that it's too much work.
Best wishes,
Thomas