## 4 Case Study: Racer/Cruiser Yacht Configurator  
As a case study, we selected an Italian shipyard specializing in high-performance carbon fiber sailing yachts designed for recreational cruising but also capable of racing. This represents an ideal showcase for the potential of MAGIC, as these yachts are large, difficult to transport, and highly customizable in terms of aesthetics and technical elements and because they require careful configuration of limited spaces. Figure 5: Multi-user authoring management algorithm path. Figure 6: Environmental and narrative content: moving trawler with spherical engine noise (**left**); cargo ship in the background (**right**). A focus group with the company's head and the technical and commercial staff highlighted the need for virtualization tools to reduce transportation costs and environmental impact associated with trade fairs and client visits. A simulation was conducted to estimate the CO\({}_{2}\) emissions related to transferring a \(\pm\)13 m yacht from Bari to key fairs in Dusseldorf and Genoa (Figure 7). We considered road distances of 1745 km and 960 km, respectively, and a total transport weight of 20.1 tons, including the yacht (5.6 tons) and the heavy-duty transport vehicle (14.5 tons). The estimated weight of the special transport vehicle is based on typical configurations for heavy-duty trucks and trailers used in oversized transport. This includes a tractor unit (8-12 tons) and a specialized trailer (2-8 tons; volvotrucks.com (accessed on 15 January 2025)). Assuming fuel consumption based on weight (The International Council on Clean Transportation (ICCT) reports that the fuel consumption of a typical tractor-trailer is approximately 0.326 L/km (theicct.org (accessed on 15 January 2025)). Based on a typical payload, fuel consumption per ton per km can be reasonably estimated at 0.4 L/ton/km, though this varies with vehicle efficiency, load, and road conditions. A widely accepted value for average CO\({}_{2}\) emissions per liter of diesel is 2.68 kg CO\({}_{2}\)/L (drivingets.co.nz (accessed on 15 January 2025)). On this basis, we estimated a fuel consumption of approximately 28,060 L for the Bari-Dusseldorf round trip, resulting in 75.2 tons of CO\({}_{2}\) emissions. Using the same calculation, the Bari-Genoa route produces approximately 41.4 tons of CO\({}_{2}\). Results indicate that this transportation process generates approximately **116.6 tons of** CO\({}_{2}\) annually for one round trip to each destination. These findings highlight the importance of exploring more sustainable transportation methods or implementing compensatory measures to reduce the environmental impact of these operations. Alongside this issue, customers--generally non-Italian--ask for a user-friendly remote configuration tool to avoid the time, cost, and burden of international travel. A configurator provides a more realistic idea of the result, enabling a more engaging and confident decision-making process. Customer involvement currently relies on static 2D renderings and regular visits to monitor construction progress and support key decisions, often aided by disposable rapid prototypes, samples, and models. However, 2D desktop tools fail to effectively convey the perception of onboard spaces, lack ergonomic immersion, and prevent active interaction  
Figure 7: Total CO\({}_{2}\) emission estimated on two round trips to main trade fairs. with environmental elements. For instance, the commercial team reported losing a large client because they could not fully demonstrate the accessibility of the final result. An innovative full-carbon yacht design was chosen to showcase MAGIC's capabilities. We imported the CAD models from Rhinoceros and modeled missing parts and components, materials, and setup. All variants available to define the aesthetic and functional aspects of the yacht's features (e.g., hull, deck, rigging, furniture, lighting) were implemented to ensure flexibility in customization and immersive support to evaluate spaces within the cabin and on the deck.