When the idea of a large scale projection mapping is conceived, the pitch is incomplete without a 3D visualization of what the end result will. We have been leveraging virtual production methodologies on Unreal Engine to create visualizations that resemble the final outcome. With projections, lights, sound and all the action packed into a short video - this conveys exactly what the client is getting into.
It is also a useful artifact that helps align all the stakeholders and teams involved into a single vision - saving a lot of time and effort of translating the idea to reality. We have worked along with creative agencies to help at this initial stage to capture the narrative along with the audio visual direction.