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Updated Skyboxes (markdown)

Blixibon 2020-12-02 17:48:20 -06:00
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Skyboxes.md

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**sky_camera** is the entity used to create a skybox. The area around it will be projected around the map via the `tools/skybox` texture. [Click here for more information on sky_camera in Source.](https://developer.valvesoftware.com/wiki/Sky_camera)
Outside of Mapbase, sky_camera is static. Once it's been placed, the skybox can't move. You can move the sky_camera itself through things like logic_measure_movement, but it doesn't update the skybox. There is a trick to update the skybox by continuously removing and respawning the sky_camera, but this is a complicated workaround and usually isn't very smooth.
Outside of Mapbase, sky_camera is static. Once it's been placed, the skybox can't move. You can move the sky_camera itself through things like logic_measure_movement, but it doesn't update the skybox. There is a trick to update the skybox by continuously removing and respawning the sky_camera, but this is a complicated workaround and usually isn't very smooth. `sky_camera` is also not capable of rotating the skybox.
## Moving skyboxes
In Mapbase, sky_camera has been updated to support parenting and continuous updating. Not just that, but there's a new option to use the sky_camera's angles for actual skybox rotation rather than fog direction.
In Mapbase, sky_camera has been updated to support parenting and continuous updating. There's also a new keyvalue to use the sky_camera's angles for actual skybox rotation rather than fog direction.
Together, these changes create the ability for the skybox to move around freely relative to the world.
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* **StartUpdating** `<void>` - Begins per-tick skybox updating, which is needed if you want this sky_camera to move.
* **StopUpdating** `<void>` - Ends per-tick skybox updating if it was enabled before.
There's also a spawnflag for a sky_camera to spawn continuously updating its position.
There's also a spawnflag for a sky_camera to spawn continuously updating its position without having to use the `StartUpdating` input.
## Multiple skyboxes
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## New fog inputs/keyvalues
`sky_camera` now has inputs and keyvalues from `env_fog_controller`, which allows for more skybox fog control. Lerping is not yet supported.
`sky_camera` now has inputs and keyvalues from `env_fog_controller`, which allows for more skybox fog control. Lerping is currently unsupported.