Cheers, unfortunately no time to work on it recently due to the day job and a healthy appetite for womanising and beers on the weekend.
A few people are asking via PM how I generated the landscape mesh, It's called
SplineLand ......all self explanatory, you just need spline contours generated from the LIDAR mesh to work with.
I just used a C
ontour Generator script to try it out, seems to work ok with a spline every 10m, but more accurate contours from GIS / CAD packages will no doubt give a better result and more optimised topology.
Quite a nifty plugin, you can cut out the track using splines generated from the track edge, all with very neat topo and graduated density. Manually optimising LIDAR looks a right royal pain in the ass to do, SplineLand is just a few mouse clicks and a short wait.
Plenty of tuts on PooTube, you can generate contours using a Spline Section but the script is much quicker.
I have made some progress with Bathurst but just no time to make previews, I'm also resisting the urge to post screenshots every time I move a vertex ..best to wait for substantial changes.