May 20, 2016, 02:36:10 am
Thanks for letting us know it's now working.
The key is that Geometry Accuracy would need to be set to maximum value. This will ensure the highest number of polygons are generated for things like curved surfaces and piping so that in Lumion the object is nicely smoothed. Each increase in the Accuracy slider steps will improve the smoothness of the curves.
Be aware though that it can increase a models polygon count and complexity significantly, and it is possible for that to impact on performance for displaying it in realtime. So, in some cases it required model parts such as piping to be separately exported to Lumion, rather than as part of a larger single model.