VRScenarioBuilder: Free-Hand Immersive Authoring Tool for Scenario-based Testing of Automated Vehicles

Virtual Reality has become an important medium in the automotive industry, providing engineers with a simulated platform to actively engage with and evaluate realistic driving scenarios for testing and validating automated vehicles. However, engineers are often restricted to using 2D desktop-based tools for designing driving scenarios, which can result in inefficiencies in the development and testing cycles. To this end, we present VRScenarioBuilder, an immersive authoring tool that enables engineers to create and modify dynamic driving scenarios directly in VR using free-hand interactions. Our tool features a natural user interface that enables users to create scenarios by using drag-and-drop building blocks. To evaluate the interface components and interactions, we conducted a user study with VR experts. Our findings highlight the effectiveness and potential improvements of our tool. We have further identified future research directions, such as exploring the spatial arrangement of the interface components and managing lengthy blocks.