I think this could be done in progressive way,
improving the layout editor fist
For example, introducing for example a
plain grass field location that can allow building tracks that doesn't look like big grey parking lots.
Something like that
Along with that,
introducing these three elements:
asphalt,
gravel trap and
grass blocks.
Similar to the current pale cement square blocks, but you can choose from asphalt, gravel and grass.
A "Trees" element should be introduced, and could make all the difference in terms of look.
Those two or three "simple" modifications alone could make a
massive difference in layout building.
Custom layouts would look
massively better, realistic, and much more immersive than the current grey landscape.
I'm not a dev,
so i could be totally wrong, but i'm guessing this shouldn't a daunting task if the LFS engine allows it.
After that, to make a step further you could introduce in the editor a lot of the elements that we see on the official tracks.
Like grandstands, armco barriers, fencing, and a long list of decorative elements.
Along with allowing a
more precise gradient for the blocks (like, with 1-2% precision and not 6% like it is today), in order to re-create downhill and uphill sections without it being rough on the suspensions.
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So, i think this could be the
first step in the track editing process, wich could come later in the future in a proper way.
But i think that
improving the layout editor alone could attract a lot of costumers (Hey! Have you heard? In LFS you can build your own cool tracks and race on them!) and make the modding community go wild with more realistic layouts and sceneries.