View source for Draft:Cubemaps (Source 2)

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{{Tabs|Cubemaps|source=1|source2=1|main=source}}
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[[File:Env_cubemap.png|left]]
[[File:Specular.jpg|thumb|right|300px|An example of specular reflections on some models (exaggerated through {{cmd|r_showenvcubemap}}).]]
A '''cubemap''' is a texture that represents a three-dimensional rendering of an area. {{source2|4.1}} has {{ent|env_cubemap|engine=source2}} and/or {{ent|env_cubemap_box}} entities as sampling points to generate these textures, which are then integrated into the [[VPK|map file]]. <!-- old stuff for S1 commented out. !!! Cubemaps, when [[#Building cubemaps|built]], are reflected on materials that use the [[$envmap]] parameter (surfaces such as reflective glass, tiles, water, etc.) A map without built or existing '''env_cubemap''' or '''env_cubemap_box''' entities will instead use other kinds of "reflections" that don't properly depict it. --> Cubemaps in Source 2 are also [[Parallax Corrected Cubemaps|parallax corrected]] if {{code|env_cubemap_box}} is used.

{{Todo|Document about [[env_cubemap_fog]].}}

==Building cubemaps==
{{Confirm|Confirm if these commands works, and add something if its missing here.}}
{| class="wikitable"
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! Command !! Description
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| {{Command|map}} ''map_name''</code> || Loads the map; replace "''map_name''" with the map's actual name
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| {{Command|sv_cheats|1}} || Enables the use of cheat commands; required to build cubemaps
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| {{Command|buildcubemaps}} || Begins building cubemaps. Optionally, specify the number of iterations (e.g.: <code>buildcubemaps 2</code> (default is 1))
|-
| {{Command|disconnect}} || Unloads the map and returns to the main menu
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| {{Command|quit}} || (optional) Exits the game. On some games, relaunching is required to display newly-built cubemaps
|}