💡 Light

A Light represents a Lighting source.

info

🟦🟧 Authority: This class can be spawned on both Client and Server (if you spawn it on client, it won't be synchronized with other players).

⏬ Inheritance: This class inherits from Actor.

nanos world provides 3 types of lights: Spot, Point and Rect. All lights are Dynamic and because of that, very expensive! Keep that in mind before spawning 1000 lights 😉.

Usage

local my_light = Light(
    Vector(-152, 245, 115),
    Rotator(0, 90, 90), -- Relevant only for Rect and Spot light types
    Color(1, 0, 0), -- Red Tint
    LightType.Point, -- Point Light type
    100, -- Intensity
    250, -- Attenuation Radius
    44, -- Cone Angle (Relevant only for Spot light type)
    0, -- Inner Cone Angle Percent (Relevant only for Spot light type)
    5000, -- Max Draw Distance (Good for performance - 0 for infinite)
    true, -- Whether to use physically based inverse squared distance falloff, where Attenuation Radius is only clamping the light's contribution. (Spot and Point types only)
    true, -- Cast Shadows?
    true -- Enabled?
)

Constructor Parameters

Type	Name	Default	Description
Vector	location	Vector(0, 0, 0)
Rotator	rotation	Rotator(0, 0, 0)	Relevant only for Rect and Spot LightTypes
Color	color	Color(1, 1, 1)
LightType	light_type	LightType.Point
number	intensity	30
number	attenuation_radius	250
number	cone_angle	44	Relevant only for Spot LightType
number	inner_cone_angle_percent	0	Inner Cone Angle Percent (Relevant only for Spot LightType) (0-1)
number	max_daw_distance	5000	Max Draw Distance (Good for performance - 0 for infinite
boolean	use_inverse_squared_falloff	true	Whether to use physically based inverse squared distance falloff, where Attenuation Radius is only clamping the light's contribution. (Spot and Point types only)
boolean	cast_shadows	true
boolean	visible	true

Functions

Inherited Actor Functions

Base Actorscripting-reference/classes/base-classes/actor

	Returns	Name	Description
		AddImpulse	Applies a Force in world space to this Actor
		AttachTo	Attaches this Actor to another Actor
		Destroy	Destroys this Actor
		Detach	Detaches this Actor if attached
		SetCollision	Sets this Actor's collision type
		SetForce	Adds a permanent force to this Actor
		SetGravityEnabled	Sets whether gravity is enabled on this Actor
		SetVisibility	Sets the Actor visibility
		SetHighlightEnabled	Sets whether the highlight is enabled on this Actor, and which highlight index to use
		SetOutlineEnabled	Sets whether the outline is enabled on this Actor, and which outline index to use
		SetLifeSpan	Sets the time (in seconds) before this Actor is destroyed
		SetLocation	Sets this Actor's location in the game world
		SetNetworkAuthority	Sets the Player this Actor will have its physics calculated on Network Authority
		SetRelativeLocation	Sets this Actor's relative location in local space
		SetRelativeRotation	Sets this Actor's relative rotation in local space
		SetRotation	Sets this Actor's rotation in the game world
		SetScale	Sets this Actor's scale
		SetValue	Sets a value in this Actor, which can be accessed by any package
		TranslateTo	Smoothly moves this Actor to the specified location
		RotateTo	Smoothly rotates this Actor to the specified angle
	boolean	HasNetworkAuthority	Gets if the LocalPlayer is currently the Network Authority of this Actor
	boolean	HasAuthority	Gets if this Actor was spawned by the client side
	boolean	IsBeingDestroyed	Gets if this Actor is being destroyed
	boolean	IsGravityEnabled	Gets whether gravity is enabled on this Actor
	boolean	IsVisible	Gets whether this actor is Visible or not
	boolean	IsInWater	Gets if this Actor is in water
	boolean	IsNetworkDistributed	Gets if this Actor is currently Network Distributed
	boolean	IsValid	Returns if this Actor is valid (i.e. not destroyed)
	table	GetAttachedEntities	Gets all Actors attached to this Actor
	any	GetAttachedTo	Gets the Actor this Actor is attached to
	table	GetBounds	Gets this Actor's bounds
	number	GetCollision	Gets this Actor's collision type
	number	GetID	Gets the universal network ID of this Actor
	Vector	GetLocation	Gets this Actor's location in the game world
	Rotator	GetRotation	Gets this Actor's angle in the game world
	Vector	GetForce	Gets this Actor's scale
	Vector	GetScale	Gets this Actor's scale
	string	GetType	Gets the type of this Actor
	any	GetValue	Gets a value stored on this Actor at the given key
	Vector	GetVelocity	Returns this Actor's current velocity
	string	AddActorTag	Adds an Unreal Actor Tag to this Actor
	string	RemoveActorTag`	Remove an Unreal Actor Tag from this Actor
	table	GetActorTags	Gets all Unreal Actor Tags from this Actor
	function	Subscribe	Subscribes to an Event
		Unsubscribe	Unsubscribes from an Event

	Returns	Name	Description
		SetColor	Sets the light color
		SetTextureLightProfile	Sets the light texture profile
		SetEnabled	Enables/Disables the light
		SetCastShadows	Enables/Disables the shadows
		SetIntensity	Sets the intensity
		SetAttenuationRadius	Sets the Attenuation Radius
	boolean	IsEnabled
	boolean	GetCastShadows
	number	GetIntensity
	number	GetAttenuationRadius
	Color	GetColor

SetColor

Sets the light color

my_light:SetColor(color)

Type	Parameter	Default Value	Description
Color	color		The light color

SetTextureLightProfile

Sets the light Texture Profile

my_light:SetTextureLightProfile(light_profile)

Type	Parameter	Default Value	Description
LightProfile	light_profile		The Light Profile to use

SetEnabled

my_light:SetEnabled(is_enabled)

Type	Parameter	Default Value	Description
number	is_enabled

SetCastShadows

my_light:SetCastShadows(is_shadows_enabled)

Type	Parameter	Default Value	Description
number	is_shadows_enabled

SetIntensity

my_light:SetIntensity(intensity)

Type	Parameter	Default Value	Description
number	intensity

SetAttenuationRadius

my_light:SetAttenuationRadius(attenuation_radius)

Type	Parameter	Default Value	Description
number	attenuation_radius

Events

Inherited Actor Events

Base Actorscripting-reference/classes/base-classes/actor

	Name	Description
	Destroy	Triggered when an Actor is destroyed
	Spawn	Triggered when an Actor is spawned/created
	ValueChange	Triggered when an Actor has a value changed with :SetValue()

Light Profiles

Light Profiles are texture files which describes a light's distribution from a light source using real world measured data.

tip

Please check Unreal Engine Light Profile documentation for more information about Light Profiles!

nanos world provides 50 Light Profiles included in the base game which you can use to enhance your Lights. You can set them using :SetTextureLightProfile() with the enum LightProfile.