On the table are blocks, one for each of the unbuilt projects, and a visitor simply places the appropriate block in a receptacle in the center of the table to change the visible plan to that of another project. The slides change then as well. The visitor can understand precisely the views presented. These are not virtual reality models. Viewers cannot metaphorically wander about the models and look in any direction from any point.
Images are available only for the points marked and in the directions selected in advance.
Others might prefer a VR model with lower-quality images in return for the ability to experience views from any position within the model. For me, though, the quality of these images is such that I much prefer this exhibit to a VR model. These seem to be, as I have already said, photographs. Of course, there is also no computer-game aspect to this, as there might be with a VR system. The power of the technology has been harnessed to provide effective images, and appropriate ways of presenting the information have been used.