Hi
After 8 days of research, i see your Thread, and it can save me.
I am working on the same project than you. That’s a very good work and i would to do the same.
In first way, i am not english, so sorry to my bad english, and i am only a graphist who code in blueprint 
I use a .las and i open it in Cloud compare. Then i save in .csv.
Il my folder the .csv is a .txt. That’s a problem, because i would use A-vekt/Software/ImageCSV to convert in bmp.
do you have a solution to convert to bitmap ?
I like the city. Verywonderful
Thancks to help and sorry to my bad English again