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Lights

3 topics

Lighting brings a 3D scene to life. Without lights, PBR materials appear completely black. Three.js provides several light types that simulate real-world lighting, plus shadow mapping for grounded, realistic visuals and environment maps for ambient illumination.

Light Types
Ambient, directional, point, spot, hemisphere, and rect area — each light type and when to use it.
Shadows
Enabling shadow maps, configuring shadow cameras, and tuning quality vs performance.
Environment Maps
HDR environment maps for realistic image-based lighting and reflections on PBR materials.