gldf-rs is an open-source Rust library and viewer for GLDF files - the open standard for exchanging luminaire data in the lighting industry.

Architecture: gldf-rs is a cargo workspace that brings together my other lighting crates:

• eulumdat-rs - Parses EULUMDAT/IES photometric files and provides light distribution interpolation (WASM demo)
• l3d-rs - Parses L3D (Luminaire 3D) geometry format with light emitting surfaces

Together they enable full GLDF support: container parsing, photometric visualization, and 3D luminaire rendering.

Bevy 3D Scene Viewer: Some highlight is the interactive 3D scene viewer built with Bevy, featuring:

• Photometric light rendering - Visualizes actual light distribution with realistic beam angles, intensity falloff, and luminous flux
• L3D luminaire geometry - Renders the 3D model including housing, reflectors, and light emitting surfaces (LES)
• Accurate light emission - Photometric data is applied from the correct emission points defined in the L3D format

Cross-platform support:

• Desktop - Native GUI using egui
• Web - WASM build with Bevy for 3D rendering
• Python - PyPI package via pyo3 (pip install gldf-rs)

Live demo: https://gldf.icu

GitHub:

• GitHub - holg/gldf-rs: Process GLDF (workspace)
• GitHub - holg/eulumdat-rs (photometrics)
• https://github.com/holg/l3d-rs (3D geometry)

Feedback and contributions welcome!

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