# Lights — user documentation

The **lighting side** of the scene: the light model, shadows, and emissive materials.

| Page | Topic |
|------|-------|
| [Lights](lights.md) | Scene-global lights (directional/point/spot/ambient), `MAX_LIGHTS`, packed indices |
| [Shadows](shadows.md) | Shadow mapping: picking the casting light, the packed-index pitfall, tuning |
| [Emissive + Exposure](emissive-exposure.md) | Emissive materials (HDR glow) and runtime exposure |

Example folder: [`lib/examples/lights/`](../../../lib/examples/lights/README.md)
(`shadow`, `shadow_test`, `spot_test`, `emissive`).

## Links

- [User documentation index](../README.md) · [Quickstart](../quickstart.md) · [Examples](../examples.md)