Missing trees may mean the track is from a game that uses instancing.
...meaning the game is placing the trees, etc during loading(or on-the-fly - I don't know the details of how it works).
But they aren't actually part of the model - they're external references.
...so you'd have to replant them.
The Grid and Dirt series work like that and there's bound to be others too. Any game using Speedtree(moving 3d trees) is probably the same.
Of course if these KN files are models then yeah - go for it - convert and combine.
...but they might just be configuration files for instancing(place this tree model here - rotate by so much - scale so many percent, blah, blah).
...meaning the game is placing the trees, etc during loading(or on-the-fly - I don't know the details of how it works).
But they aren't actually part of the model - they're external references.
...so you'd have to replant them.
The Grid and Dirt series work like that and there's bound to be others too. Any game using Speedtree(moving 3d trees) is probably the same.
Of course if these KN files are models then yeah - go for it - convert and combine.
...but they might just be configuration files for instancing(place this tree model here - rotate by so much - scale so many percent, blah, blah).