For this project, we are first going to construct an art gallery building to display artwork and provide a space for the user to interact. If you'd like to skip this topic, you can use the prebuilt GalleryBuilding.obj file included with the downloadable files for this project. If you'd like to make the building from scratch using ProBuilder, continue with this section.
In previous editions of this book, we used the free and open source Blender software (https://www.blender.org/) to construct the art gallery building. Since then, Unity acquired ProBuilder, and these tools are now directly integrated with the Unity Editor. While not as robust as Blender, ProBuilder provides the tools we need for this project.
To begin, I've drawn a simple floor plan on an 11" x 8.5" piece of graph paper and scanned with a desktop scanner (gallery-floorplan.png). Each square of the graph paper is a one-foot scale. It...