2D Skybox Creation
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This article or section needs to be cleaned up to conform to a higher standard of quality because:
Quickly copy pasted from Source 1 counterpart, with some modifications. Info needs to be added.
For help, see the VDC Editing Help and Wikipedia cleanup process. Also, remember to check for any notes left by the tagger at this article's talk page.The 2D Skybox of a 
Source 2 map is a static 360° background image that is rendered only through skybox tool textures. This image is composed of a single Equirectangular panoramic image, such as an HDRI map.
As opposed to a 3D Skybox, it lacks geometrical depth, consisting only of textures.
A cubic sky texture template suitable for the sky from Source 1.
Equirectangular sky texture example.
Adding sky to a map
Simply texture a mesh (not a mesh entity) with the tools/toolsskybox.
In-game, the skybox will be seen through each surface that toolsskybox is applied to.
Changing the displayed skybox
The skybox for a map can be set in env_sky entity. With the correct map opened, follow these steps:
- Place an
env_skyentity. - Double click on the entity or
Right click > Properties. - Set Sky Material to your sky name. For the list of skies available in Source 2 games, see this page.
Skybox Lighting
[Todo]
Creating a Custom 2D Skybox Texture
Use Material Editor to create custom 2D Skybox texture.
Porting existing cubic sky texture
Todo: Document how to port GoldSrc/Source 1 cubic sky textures to a single equirectangular panoramic image.
See also
| Environment articles: | |
|---|---|
| Skies and environment maps |  GoldSrc: Skybox • List of skies Source: Skybox (2D) • Skybox (3D) • HDR Skies • Skybox with Terragen • Skybox with Terragen - Advanced • List of skies Source 2: Skybox (2D) • Skybox (3D) • List of skies
|
| Terrain and displacement mapping | Displacements • Creating Holes in Displacements • Digital Elevation Models • Creating custom terrain with Worldmachine |