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Tutorial #9: Introduction to ASAM OpenMATERIAL 3D Materials

  • clemenslinnhoff
  • Jul 2
  • 1 min read

In this video, Clemens, CTO of Persival, shifts focus from geometry to the material side of the ASAM OpenMATERIAL 3D standard. He explains how physical and wavelength-dependent material properties are defined, stored, and used in simulation environments, enabling realistic sensor modeling for technologies like lidar and radar.


  • Material Data Structure: Learn how material properties are defined using JSON-based .xomp files and extended through .xompt lookup tables for advanced, wavelength-dependent data.

  • Sensor-Specific Material Behavior: Understand why different sensors (e.g., 905 nm vs. 1550 nm lidar) require distinct material definitions, and how the standard supports this through electromagnetic and optical property tables.

  • Metadata & Licensing: Explore how each material entry includes metadata such as name, description, author, and licensing, ensuring traceability and compliance in simulation workflows.

  • BRDF Lookup Tables: Discover how Bidirectional Reflectance Distribution Functions (BRDFs) are used to model reflection behavior across angles and wavelengths, supporting both real-time and offline simulations.

  • Real-World Measurement Integration: See how Persival’s reflectivity measurement device captures BRDF data for different materials, enabling accurate simulation.


Tools & Standards for Co-Simulation


Next Steps: In the next tutorial, Clemens will demonstrate how to link these material definitions to 3D geometry and access them within simulation environments.


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