Keywords

Abstract

In the real world we take the world around us for granted but in a simulation, all aspects of the world, the terrain, trees, lakes, vehicles, aircraft and the atmosphere they fly in have to be modelled with enough characteristics and fidelity to satisfy the purpose of the simulation. In a simulation, the world around the object we are simulating, is modelled in 3D and referred to as the synthetic physical environment.

Accurate and realistic modelling of the world surrounding a simulated system or a system operator is a complex, resource-intensive, and technically demanding task. The level of detail and fidelity required for representing the world varies significantly depending on the specific objectives of a given simulation task. Some applications demand highly detailed and precise data, while others may prioritize computational efficiency over absolute accuracy.

Moreover, constraints imposed by image generation technologies and other supporting systems often necessitate optimizations that, if not carefully managed, can introduce unwanted artifacts. These artifacts may compromise realism, reduce system interoperability, and ultimately impact the effectiveness of training, analysis, or operational decision-making. Additionally, factors such as data reuse, integration of live elements, and cross-platform interoperability further complicate the modeling process, making it essential to adopt standardized approaches and best practices.

This tutorial is designed to provide attendees with an overview of the challenges associated with acquiring or developing a 3D model of the world that meets the specific requirements of a simulation task while enabling future updates and allowing for reuse in and interoperability with other simulation systems.

Key topics covered in this tutorial include:

• Fundamentals of real-time 3D Simulation Databases: An introduction to what constitutes a simulation 3D database and its role in defense and operational simulation.
• Data Acquisition and Processing: How 3D models are derived from source data such as elevation datasets, satellite imagery, and geospatial information.
• Standards for Interoperability and Data Exchange: An overview of key international standards developed to facilitate data sharing and interoperability across simulation platforms.
• Standardization Organizations and Their Contributions: A discussion on relevant standardization bodies, including their roles and ongoing efforts to enhance interoperability in simulation environments.
• NATO Science and Technology Organization (STO) Guidelines: An examination of NATO’s recommendations and best practices for 3D modeling in defense applications.
• Emerging Technologies and Future Trends: Insights into new and upcoming advancements in 3D modeling