Fog volume: Difference between revisions
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Warning:Affects players based on its AABB instead of the actual brush model (tested in 
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Tip:
Note:
Note:
Xengine does not have a postprocess_controller entity.
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{{tip|{{clr}} | {{tip|{{clr}} | ||
* There is a Fog Panel in {{l4d2|4.1}} that allows in-game manipulation of fog parameters. It is loaded via console command <code>fogui</code>. This command exists in {{portal2|4.1}}, but will not work unless <code>resource/foguipanel.res</code> is copied from another game. | * There is a Fog Panel in {{l4d2|4.1}} that allows in-game manipulation of fog parameters. It is loaded via console command <code>fogui</code>. This command exists in {{portal2|4.1}}, but will not work unless <code>resource/foguipanel.res</code> is copied from another game. | ||
* Use <code>tools/toolsfog</code> texture for your fog volumes to | * Use <code>tools/toolsfog</code> texture for your fog volumes to distinguish them from triggers during level creation.}} | ||
{{note|{{clr}} | {{note|{{clr}} | ||
* {{as|4.1}} does not use the origin of a player to decide which fog volume they are in, but rather camera position. Due to this, you must make sure that your fog volume is taller (height) | * {{as|4.1}} does not use the origin of a player to decide which fog volume they are in, but rather the camera position. Due to this, you must make sure that your fog volume is taller (height) than the highest point a marine's camera can reach, i.e: The distance from the camera in height from the marine. | ||
* | * Mods using {{src07|4.1}} or {{src13|4.1}} can create client-side fog-changing functionality in a multiplayer game using instead {{ent|trigger_multiple}}. Place at least 2 {{ent|env_fog_controller}} with different fog settings and one checked with Master flag. Use <code>OnStartTouch > !activator > SetFogController > [name of env_fog_controller entity]</code>. The input will appear as red, but it still works. Use <code>OnEndTouch()</code> to change the fog back. | ||
* In {{csgo}} (and perhaps other games), binding multiple brushes to fog_volume will produce the fog effect for the bounding box of the group of brushes i.e. if you have 2 blocks for fog_volume in an L-shaped hallway, standing in a room in the inside corner of that hallway will trigger the fog as well}} | * In {{csgo}} (and perhaps other games), binding multiple brushes to fog_volume will produce the fog effect for the bounding box of the group of brushes i.e. if you have 2 blocks for fog_volume in an L-shaped hallway, standing in a room in the inside corner of that hallway will trigger the fog as well}} | ||
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==See also== | ==See also== | ||
*[[color_correction|Color Correction]] | *[[color_correction|Color Correction]] | ||
* | *{{ent|color_correction}} (entity) | ||
* | *{{ent|env_fog_controller}} | ||
* | *{{ent|postprocess_controller}} | ||
==External links== | ==External links== | ||
*[http://www.l4d.com/blog/post.php?id=1962 L4D Art Direction, Part 1: Filmic Effects] - Valve blog post regarding film effects in Left 4 Dead. | *[http://www.l4d.com/blog/post.php?id=1962 L4D Art Direction, Part 1: Filmic Effects] - Valve blog post regarding film effects in Left 4 Dead. | ||
*[http://forums.steampowered.com/forums/showthread.php?t=3065769 Changing fog in multiplayer game with Source 2007 ] - Steam forum. | *[http://forums.steampowered.com/forums/showthread.php?t=3065769 Changing fog in multiplayer game with Source 2007 ] - Steam forum. | ||
Revision as of 12:24, 8 March 2024
 Class hierarchy
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|---|
| CFogVolume |
| fogvolume.cpp
|
fog_volume is an e2 available in 
Left 4 Dead, Left 4 Dead 2, 
Black Mesa, and 
Mapbase. It controls fog and other visual cinematic elements within its volume. It is necessary to have at least one fog_volume in order for (a master) color_correction to take effect in the Left 4 Dead series.
Warning:Affects players based on its AABB instead of the actual brush model (tested in )Tip:
- There is a Fog Panel in Left 4 Dead 2 that allows in-game manipulation of fog parameters. It is loaded via console command
fogui. This command exists in
Portal 2, but will not work unless resource/foguipanel.resis copied from another game. - Use
tools/toolsfogtexture for your fog volumes to distinguish them from triggers during level creation.
Note:
Alien Swarm does not use the origin of a player to decide which fog volume they are in, but rather the camera position. Due to this, you must make sure that your fog volume is taller (height) than the highest point a marine's camera can reach, i.e: The distance from the camera in height from the marine.- Mods using
Source 2007 or 
Source 2013 can create client-side fog-changing functionality in a multiplayer game using instead trigger_multiple. Place at least 2 env_fog_controller with different fog settings and one checked with Master flag. Use OnStartTouch > !activator > SetFogController > [name of env_fog_controller entity]. The input will appear as red, but it still works. UseOnEndTouch()to change the fog back. - In
(and perhaps other games), binding multiple brushes to fog_volume will produce the fog effect for the bounding box of the group of brushes i.e. if you have 2 blocks for fog_volume in an L-shaped hallway, standing in a room in the inside corner of that hallway will trigger the fog as well
Keyvalues
- Fog Name (FogName) <targetname>
- The name of the fog entity associated with this volume.
- Postprocess Name (PostProcessName) <targetname>
- The name of the postprocess_controller entity associated with this volume. (not in Xengine)
Note: Xengine does not have a postprocess_controller entity.
- ColorCorrection Name (ColorCorrectionName) <targetname>
- The name of the color_correction entity associated with this volume.
- Name (targetname) <string>[ Edit ]
- The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g.
parentnameortarget).
Also displayed in Hammer's 2D views and Entity Report.See also: Generic Keyvalues, Inputs and Outputs available to all entities
- Start Disabled (StartDisabled) <boolean>
- Stay dormant until activated (with the
Enableinput).
Inputs
EnableDisable:
- Enable / Disable
- Enable/disable this entity from performing its task. It might also disappear from view.
See also
External links
- L4D Art Direction, Part 1: Filmic Effects - Valve blog post regarding film effects in Left 4 Dead.
- Changing fog in multiplayer game with Source 2007 - Steam forum.