A motive is the reason why we are producing a 3D walk-through. If you think about it, if we are deprived of a motive, we wouldn't know exactly what to show and how to present the project. For instance, for a particular project, the client might need to display how the planned building interacts and blends with the environment, and this could be what he or she needs for a planning application. For another project, we might have a real-estate agent trying to show his/her customers how one would be living in the house they are promoting.

The approach and techniques used for the first instance have nothing to do with the second example, and this demonstrates why a motive is the first step to create an expert movie. Now that we have the motive, there is a need for an extra step: creating a storyboard. Do you really need a storyboard? And what is a storyboard?

A storyboard is a graphic representation of how your video will flow, and it can look something...