Inspo for stage rises massing concept diagram I assume illustrator and acad was used. I like this diagram because the was the layers are sequenced and the mass is displayed.
Deconstructing and reconstructing the landscape Diagram: Landscaping Saint-Barthelemy d'Anjou / Atelier Arcau
The designer used proper colors to communicate meaning and the diagram shows simply how the basic form of the buildings was established. The diagram also shows why they decided to design the building this way, to connect views and paths.