In the end that was not the problem. However, I really appreciate your help. Beforehand, the problem was that for some reason, the model in blender had a vertex color activated and that is why the model was very dark, I clarify it so that any developer who has this same problem can see this.
Anyway, thanks for the help mate.
(By the way, the scenery is a sculpture that exists in real life and is located in the middle of the Atacama desert in my country Chile. You can find it for free at flightsim.to)
Cheers
