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Shadow control.png
shadow_control is a point entity available in all Source games.定义整个地图的动态阴影的方向、颜色和衰减距离。

The properties of this entity apply to the whole map. Multiple instances of this entity within a map may cause errors.

  • light_environment指定直射日光的方向、颜色和强度,以及漫反射光的颜色和强度。
  • shadow_control实体指定light_environment所创建的动态阴影的方向、颜色和距离。如果没有该实体,动态阴影将会有bug且不可配置。
  • env_sun在天空盒中放置一个发光的图标来表示太阳在天空中的明显位置。
  • env_cascade_light给地图投射一个精细的实时阴影,其设置通常来自light_environment。只能用于<Counter-Strike: Global Offensive><Insurgency><Black Mesa (Source)>

要使它们有意义,确保以上每个实体在地图中只有一个,并且实体的Pitch and Yaw <角度>设置为相同的值。(Pitch相当于太阳的仰角,而Yaw则类似于指南针轴承。)


Pitch会对light_environmentenv_sun强制,但不能对shadow_controlPitch的强制也不能被关闭,且它的旋转是从水平方向逆时针开始的(因此竖直向下是-90°),而<角度> Pitch的旋转是顺时针的(因此竖直向下是+90°)。一个应对方法是确保你的Pitch强制只重复<角度>的值;例如,如果你的shadow_controllight_environmentenv_sun<角度>是「45 -60 0」,把Pitch设置为「-45」。




Pitch Yaw Roll (Y Z X) <角度>
Shadow Color <color255>
Maximum Distance <float>
All Shadows Disabled <boolean>


Name (targetname) <string>
The targetname that other entities refer to this entity by.
Entity Scripts (vscripts) <scriptlist> (in all games since <Left 4 Dead 2>)
Space delimited list of VScript files (without file extension) that are executed after all entities have spawned. The scripts are all executed in the same script scope, later ones overwriting any identical variables and functions.
Script think function (thinkfunction) <string> (in all games since <Left 4 Dead 2>)
Name of a function in this entity's script which will be called automatically every 100 milliseconds (ten times a second) for the duration of the script. It can be used to create timers or to simulate autonomous behavior. The return value (if present) will set the time until the next call.
Note:Try to avoid expensive operations in this function, as it may cause performance problems.


color <color255>
direction <vector>
SetDistance <float>
SetAngles <string>
SetShadowsDisabled <integer>


Removes this entity from the world.
Removes this entity and its children from the world.
Note:Entities already remove orphaned children upon being removed, but this input removes all children on the same frame, being marginally faster than Kill.
AddOutput <string>
Adds a keyvalue/output to this entity. It can be potentially very dangerous, use with care.
KV Format: <key> <value>
I/O Format: <output name> <targetname>:<inputname>:<parameter>:<delay>:<max times to fire, -1 means infinite>
FireUser1 to FireUser4
Fire the OnUser outputs; see User Inputs and Outputs.
Use  !FGD
Same as a player invoking +use; may not do anything depending on the entity. Can also be invoked by firing an output that does not specify an input.
RunScriptFile <script> (in all games since <Left 4 Dead 2>)
Execute a VScript file from disk, without file extension. The script contents are merged with the script scope of the receiving entity.
RunScriptCode <string> (in all games since <Left 4 Dead 2>)
Execute a string of VScript source code in the scope of the entity receiving the input. String quotation may be needed when fired via console.
Bug: In <Left 4 Dead 2>, the code is executed in the script scope of the entity that fires the output, not the one receiving the input.
Warning: Never try to pass string parameters to a script function with this input. It will corrupt the VMF structure because of the nested quotation marks, which then must be removed manually with a text editor.
CallScriptFunction <string> (in all games since <Left 4 Dead 2>) !FGD
Execute a VScript function in the scope of the receiving entity.
SetLocalOrigin <coordinates> (in all games since <Alien Swarm>) !FGD
Send this entity to a spot in the map. If the entity is parented to something, it will be offset from the parent by this amount.
SetLocalAngles <angles> (in all games since <Alien Swarm>) !FGD
Set this entity's angles.



OnUser1 to OnUser4
These outputs each fire in response to the firing of the like-numbered FireUser1 to FireUser4 Input; see User Inputs and Outputs.
OnKilled  (only in <Left 4 Dead><Left 4 Dead 2>)
This output fires when the entity is killed and removed from the game.