I seem to have export problems with the 1.22 plug-in downloaded from http://www.refractivesoftware.com/forum/viewtopic.php?f=29&t=1612
It won't export meshes with more than 1.5-2.0 million tris. The meshes are composed of multiple objects.
Is this a confirmed limit of the plug-in?
I'm using Windows Vista 64 bit, XSI 6.5 64 bit and Octane 2.46 64 bit, Quadro 4000 2Gb.