I want to simulate a complex building by TRnsys 18.I have the plans of the building drawn in 2D by Autocad2020 .
What are the possible and easy ways to generate and insert the 3 D building in TRnbuild18 using the 2 D autocad 2020 plans? knowing that The building is large and it would take a lot of time if we use the sketchup18 to model it in 3D .