Light2D

Inherits: Node2D < CanvasItem < Node < Object

Inherited By: DirectionalLight2D, PointLight2D

Casts light in a 2D environment.

Description

Casts light in a 2D environment. A light is defined as a color, an energy value, a mode (see constants), and various other parameters (range and shadows-related).

Tutorials

• 2D lights and shadows

Properties

Methods

Enumerations

enum ShadowFilter: 🔗

ShadowFilter SHADOW_FILTER_NONE = 0

No filter applies to the shadow map. This provides hard shadow edges and is the fastest to render. See shadow_filter.

ShadowFilter SHADOW_FILTER_PCF5 = 1

Percentage closer filtering (5 samples) applies to the shadow map. This is slower compared to hard shadow rendering. See shadow_filter.

ShadowFilter SHADOW_FILTER_PCF13 = 2

Percentage closer filtering (13 samples) applies to the shadow map. This is the slowest shadow filtering mode, and should be used sparingly. See shadow_filter.

enum BlendMode: 🔗

BlendMode BLEND_MODE_ADD = 0

Adds the value of pixels corresponding to the Light2D to the values of pixels under it. This is the common behavior of a light.

BlendMode BLEND_MODE_SUB = 1

Subtracts the value of pixels corresponding to the Light2D to the values of pixels under it, resulting in inversed light effect.

BlendMode BLEND_MODE_MIX = 2

Mix the value of pixels corresponding to the Light2D to the values of pixels under it by linear interpolation.

Property Descriptions

BlendMode blend_mode = 0 🔗

• void set_blend_mode(value: BlendMode)

• BlendMode get_blend_mode()

The Light2D’s blend mode. See BlendMode constants for values.

Color color = Color(1, 1, 1, 1) 🔗

• void set_color(value: Color)

• Color get_color()

The Light2D’s Color.

bool editor_only = false 🔗

• void set_editor_only(value: bool)

• bool is_editor_only()

If true, Light2D will only appear when editing the scene.

bool enabled = true 🔗

• void set_enabled(value: bool)

• bool is_enabled()

If true, Light2D will emit light.

float energy = 1.0 🔗

• void set_energy(value: float)

• float get_energy()

The Light2D’s energy value. The larger the value, the stronger the light.

int range_item_cull_mask = 1 🔗

• void set_item_cull_mask(value: int)

• int get_item_cull_mask()

The layer mask. Only objects with a matching CanvasItem.light_mask will be affected by the Light2D. See also shadow_item_cull_mask, which affects which objects can cast shadows.

Note: range_item_cull_mask is ignored by DirectionalLight2D, which will always light a 2D node regardless of the 2D node’s CanvasItem.light_mask.

int range_layer_max = 0 🔗

• void set_layer_range_max(value: int)

• int get_layer_range_max()

Maximum layer value of objects that are affected by the Light2D.

int range_layer_min = 0 🔗

• void set_layer_range_min(value: int)

• int get_layer_range_min()

Minimum layer value of objects that are affected by the Light2D.

int range_z_max = 1024 🔗

• void set_z_range_max(value: int)

• int get_z_range_max()

Maximum z value of objects that are affected by the Light2D.

int range_z_min = -1024 🔗

• void set_z_range_min(value: int)

• int get_z_range_min()

Minimum z value of objects that are affected by the Light2D.

Color shadow_color = Color(0, 0, 0, 0) 🔗

• void set_shadow_color(value: Color)

• Color get_shadow_color()

Color of shadows cast by the Light2D.

bool shadow_enabled = false 🔗

• void set_shadow_enabled(value: bool)

• bool is_shadow_enabled()

If true, the Light2D will cast shadows.

ShadowFilter shadow_filter = 0 🔗

• void set_shadow_filter(value: ShadowFilter)

• ShadowFilter get_shadow_filter()

Shadow filter type. See ShadowFilter for possible values.

float shadow_filter_smooth = 0.0 🔗

• void set_shadow_smooth(value: float)

• float get_shadow_smooth()

Smoothing value for shadows. Higher values will result in softer shadows, at the cost of visible streaks that can appear in shadow rendering. shadow_filter_smooth only has an effect if shadow_filter is SHADOW_FILTER_PCF5 or SHADOW_FILTER_PCF13.

int shadow_item_cull_mask = 1 🔗

• void set_item_shadow_cull_mask(value: int)

• int get_item_shadow_cull_mask()

The shadow mask. Used with LightOccluder2D to cast shadows. Only occluders with a matching CanvasItem.light_mask will cast shadows. See also range_item_cull_mask, which affects which objects can receive the light.

Method Descriptions

float get_height() const 🔗

Returns the light’s height, which is used in 2D normal mapping. See PointLight2D.height and DirectionalLight2D.height.

void set_height(height: float) 🔗

Sets the light’s height, which is used in 2D normal mapping. See PointLight2D.height and DirectionalLight2D.height.

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