Version: 2018.4
LanguageEnglish
  • C#

Light

class in UnityEngine

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Inherits from:Behaviour

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Implemented in:UnityEngine.CoreModule

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Description

Script interface for light components.

Use this to control all aspects of Unity's lights. The properties are an exact match for the values shown in the Inspector.

Usually lights are just created in the editor but sometimes you want to create a light from a script:

using UnityEngine;

public class Example : MonoBehaviour { void Start() { // Make a game object GameObject lightGameObject = new GameObject("The Light");

// Add the light component Light lightComp = lightGameObject.AddComponent<Light>();

// Set color and position lightComp.color = Color.blue;

// Set the position (or any transform property) lightGameObject.transform.position = new Vector3(0, 5, 0); } }

Properties

areaSizeThe size of the area light.
bakingOutputThis property describes the output of the last Global Illumination bake.
bounceIntensityThe multiplier that defines the strength of the bounce lighting.
colorThe color of the light.
colorTemperature The color temperature of the light. Correlated Color Temperature (abbreviated as CCT) is multiplied with the color filter when calculating the final color of a light source. The color temperature of the electromagnetic radiation emitted from an ideal black body is defined as its surface temperature in Kelvin. White is 6500K according to the D65 standard. Candle light is 1800K. If you want to use lightsUseCCT, lightsUseLinearIntensity has to be enabled to ensure physically correct output. See Also: GraphicsSettings.lightsUseLinearIntensity, GraphicsSettings.lightsUseCCT.
commandBufferCountNumber of command buffers set up on this light (Read Only).
cookieThe cookie texture projected by the light.
cookieSizeThe size of a directional light's cookie.
cullingMaskThis is used to light certain objects in the Scene selectively.
flareThe flare asset to use for this light.
intensityThe Intensity of a light is multiplied with the Light color.
layerShadowCullDistancesPer-light, per-layer shadow culling distances.
lightmapBakeTypeThis property describes what part of a light's contribution can be baked.
lightShadowCasterModeAllows you to override the global Shadowmask Mode per light. Only use this with render pipelines that can handle per light Shadowmask modes. Incompatible with the legacy renderers.
rangeThe range of the light.
renderModeHow to render the light.
shadowAngleControls the amount of artificial softening applied to the edges of shadows cast by directional lights.
shadowBiasShadow mapping constant bias.
shadowCustomResolutionThe custom resolution of the shadow map.
shadowNearPlaneNear plane value to use for shadow frustums.
shadowNormalBiasShadow mapping normal-based bias.
shadowRadiusControls the amount of artificial softening applied to the edges of shadows cast by the Point or Spot light.
shadowResolutionThe resolution of the shadow map.
shadowsHow this light casts shadows
shadowStrengthStrength of light's shadows.
spotAngleThe angle of the light's spotlight cone in degrees.
typeThe type of the light.

Public Methods

AddCommandBufferAdd a command buffer to be executed at a specified place.
AddCommandBufferAsyncAdds a command buffer to the GPU's async compute queues and executes that command buffer when graphics processing reaches a given point.
GetCommandBuffersGet command buffers to be executed at a specified place.
RemoveAllCommandBuffersRemove all command buffers set on this light.
RemoveCommandBufferRemove command buffer from execution at a specified place.
RemoveCommandBuffersRemove command buffers from execution at a specified place.
ResetRevert all light parameters to default.
SetLightDirtySets a light dirty to notify the light baking backends to update their internal light representation.

Inherited Members

Properties

enabledEnabled Behaviours are Updated, disabled Behaviours are not.
isActiveAndEnabledHas the Behaviour had active and enabled called?
gameObjectThe game object this component is attached to. A component is always attached to a game object.
tagThe tag of this game object.
transformThe Transform attached to this GameObject.
hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.

Public Methods

BroadcastMessageCalls the method named methodName on every MonoBehaviour in this game object or any of its children.
CompareTagIs this game object tagged with tag ?
GetComponentReturns the component of Type type if the game object has one attached, null if it doesn't.
GetComponentInChildrenReturns the component of Type type in the GameObject or any of its children using depth first search.
GetComponentInParentReturns the component of Type type in the GameObject or any of its parents.
GetComponentsReturns all components of Type type in the GameObject.
GetComponentsInChildrenReturns all components of Type type in the GameObject or any of its children.
GetComponentsInParentReturns all components of Type type in the GameObject or any of its parents.
SendMessageCalls the method named methodName on every MonoBehaviour in this game object.
SendMessageUpwardsCalls the method named methodName on every MonoBehaviour in this game object and on every ancestor of the behaviour.
GetInstanceIDReturns the instance id of the object.
ToStringReturns the name of the GameObject.

Static Methods

DestroyRemoves a gameobject, component or asset.
DestroyImmediateDestroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoadDo not destroy the target Object when loading a new Scene.
FindObjectOfTypeReturns the first active loaded object of Type type.
FindObjectsOfTypeReturns a list of all active loaded objects of Type type.
InstantiateClones the object original and returns the clone.

Operators

boolDoes the object exist?
operator !=Compares if two objects refer to a different object.
operator ==Compares two object references to see if they refer to the same object.