But fill in those spaces for what? if it remains behind the trees in the background, it is covered by the entire tree line.
I am not in favor of doing the things that are behind the background because after driving they are not seen, they are only seen in the repetitions and if you have intentionally placed a camera so that detail is seen.
For example, I have made a restaurant in this building, with an interior, tables, chairs, lamps etc ...
And then this is not seen when you drive because it is not at the foot of the track, you have to use an external camera to see that detail.
what
@Fanapryde de said I had also seen before haha, but let's go to that, when you drive those things you don't see them at all, what you see are trees, track and barriers, mostly, the rest remains to see in the replay
Anyway, we are talking about a track that is more than 12 years old, and that is adapted for assetto corsa, not built for assetto corsa, they are very different things.
By the way, I am also in favor of doing it from scratch, but such a track is at least 500 hours under, and this for one person can involve many months of work.
In addition, Barcelona has changed a lot since 75, this means that if you want to do a recreation of that year you have to model everything, you cannot do any 'tricks' like blender gis for buildings, or get elevations from lidar / google.