Hi its a little late but if anyone needs it here's the dynamo definition that generates a CSV file based on the location of populated family instances in Revit. Once generated the file can be put into Octane plugin and the famile instances are no longer required in the Revit model.

(can't figure ...

Thanks Paul there wasn't a lot of documentation in the plugin manual where i was looking. Anyway the information included in the manual is pretty brief as well as i guess it's expected to be common knowledge. If anyone else needs additional resources on transformation matrices;

http://inside.mines ...

Hi sorry not able to post to the other board as I can't get the company email account to work

I am trying to generate a CSV file for instancing using dynamo in revit, however I'm not sure what the 12 number matrix corresponds to. I understand that index 3, 7 and 11 are XZY coordinates, and index 0 ...