# Sky and light

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**What lights the scene, and what is behind it.** Most scenes want
[a sun](/b3d-shadows/) (which is also where shadows come from) and
[a sky](/b3d-skybox/) (day, night, stars and moons). [Ambient light](/b3d-light/)
fills the shadows; [lamps](/b3d-lamp/) are lights you can see, with a fixture.
The rest is atmosphere: [fog](/b3d-fog/), [light shafts](/b3d-light-shafts/),
[reflections](/b3d-reflections/) and [ambient occlusion](/b3d-ssao/).

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- [b3d-skybox](/b3d-skybox/)
- [Sun and shadows (b3d-shadows)](/b3d-shadows/)
- [Ambient light (b3d-light)](/b3d-light/)
- [Lamps](/b3d-lamp/)
- [b3d-light-shafts](/b3d-light-shafts/)
- [b3d-fog](/b3d-fog/)
- [b3d-reflections](/b3d-reflections/)
- [Ambient occlusion (SSAO)](/b3d-ssao/)
- [shadow-decal](/shadow-decal/)
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