Florian demmler

A middleware system enabling runtime lighting scenario switches and generation across desktop and Android XR clients. When a (accumulated) lighting change is triggered the server forwards the new state to a connected Unity editor instance, which bakes the scene using Progressive Enlighten and exports lightmaps, light probes, metadata, and a scenario manifest in the required formats. The server then distributes the updated lighting data to all clients, each of which evaluates the manifest and retrieves only the assets relevant to them. This keeps mobile XR clients free from unnecessary dynamic lighting calculations while still supporting different, adaptable lighting setups. Built as a set of independent packages with a custom data format, multiple synchronization options, caching, checksum verification, and custom editor tooling for a streamlined workflow.

Heart of Dresden visualizes the rhythm of the city through an interactive map. Dresden's districts expand and contract in real time, reflecting activity levels based on public data. This "heart", created through a dynamic cartogram, reveals patterns, hotspots, and the pulse of urban life, turning complex city data into an engaging, living map.

A modular discrete event simulator supporting both wired and wireless networks, with free-space path loss modelling, deterministic seeding, and flexible execution control. Includes a statistics/plotting API, rich logging, an interactive event list, and a PyQt6 GUI for inspection each simulation step. All in a fully module-based architecture where scenarios can be reused and composed.

Investigated Unity's Netcode for GameObjects and Netcode for Entities libraries for real-time physics-based interactions in XR applications, comparing their object-oriented and data-oriented paradigms. Conducted controlled lab measurements of motion-to-photon latency and network throughput under varying server loads and network configurations, alongside theoretical bandwidth analysis for networked physics scenarios.