April 18, 2013, 02:35:03 am
You are correct in that you can move the scene and library files to the new Lumion 3 folder (preferably do as a Copy so have your L2 files retained).
Please also refer to this topic: HOW DO I LOAD A LUMION 2 SCENE IN LUMION 3?
in LUMION 3: Tips, Tricks and Shortcuts
Please ensure that you have moved/copied all the required files that were part of your scene. This could be one reason why the L3 did not recognise the L2 files, but there are others.
Lumion is forward compatible so most scenes created in version 2 can be read/opened in version 3, however there were lots of changes in version 3, for example, there were a number of changes to effects, so in Lumion 3 you would need to remove and re-do the effects for your scene to ensure they work as needed.
What version of L2 and of L3 were you using?