@Laurent:
And here a problem I noticed:
When kerb hight h3 is negative, the back part of the kerb is still computed to zero level...which looks weird...I always need to edit the z-values of the kerb object manaually later.
Is it possible to fix that? It would be nice if the back wall would always ponit downwards and touch/cut the verges/banks.
If you have negative banking you can look under the kerb from the back because the back wall is only drawn to zero level.
Do you know what I mean oder shall I show a screenshot?
I am struggling with this at Interlagos now because this track has many banked curves and verges/banks which causes a lot of trouble for the kerbs.