Struct PointLight 

pub struct PointLight {
    pub color: Color,
    pub intensity: f32,
    pub range: f32,
    pub radius: f32,
    pub shadows_enabled: bool,
    pub soft_shadows_enabled: bool,
    pub affects_lightmapped_mesh_diffuse: bool,
    pub shadow_depth_bias: f32,
    pub shadow_normal_bias: f32,
    pub shadow_map_near_z: f32,
}

A light that emits light in all directions from a central point.

Real-world values for intensity (luminous power in lumens) based on the electrical power consumption of the type of real-world light are:

Luminous Power (lumen) (i.e. the intensity member)	Incandescent non-halogen (Watts)	Incandescent halogen (Watts)	Compact fluorescent (Watts)	LED (Watts)
200	25		3-5	3
450	40	29	9-11	5-8
800	60		13-15	8-12
1100	75	53	18-20	10-16
1600	100	72	24-28	14-17
2400	150		30-52	24-30
3100	200		49-75	32
4000	300		75-100	40.5

Source: Wikipedia

Shadows

To enable shadows, set the shadows_enabled property to true.

To control the resolution of the shadow maps, use the PointLightShadowMap resource.

Fields

color: Color

The color of this light source.

intensity: f32

Luminous power in lumens, representing the amount of light emitted by this source in all directions.

range: f32

Cut-off for the light’s area-of-effect. Fragments outside this range will not be affected by this light at all, so it’s important to tune this together with intensity to prevent hard lighting cut-offs.

radius: f32

Simulates a light source coming from a spherical volume with the given radius.

This affects the size of specular highlights created by this light, as well as the soft shadow penumbra size. Because of this, large values may not produce the intended result – for example, light radius does not affect shadow softness or diffuse lighting.

shadows_enabled: bool

Whether this light casts shadows.

soft_shadows_enabled: bool

Available on crate feature experimental_pbr_pcss only.

Whether soft shadows are enabled.

Soft shadows, also known as percentage-closer soft shadows or PCSS, cause shadows to become blurrier (i.e. their penumbra increases in radius) as they extend away from objects. The blurriness of the shadow depends on the PointLight::radius of the light; larger lights result in larger penumbras and therefore blurrier shadows.

Currently, soft shadows are rather noisy if not using the temporal mode. If you enable soft shadows, consider choosing ShadowFilteringMethod::Temporal and enabling temporal antialiasing (TAA) to smooth the noise out over time.

Note that soft shadows are significantly more expensive to render than hard shadows.

affects_lightmapped_mesh_diffuse: bool

Whether this point light contributes diffuse lighting to meshes with lightmaps.

Set this to false if your lightmap baking tool bakes the direct diffuse light from this point light into the lightmaps in order to avoid counting the radiance from this light twice. Note that the specular portion of the light is always considered, because Bevy currently has no means to bake specular light.

By default, this is set to true.

shadow_depth_bias: f32

A bias used when sampling shadow maps to avoid “shadow-acne”, or false shadow occlusions that happen as a result of shadow-map fragments not mapping 1:1 to screen-space fragments. Too high of a depth bias can lead to shadows detaching from their casters, or “peter-panning”. This bias can be tuned together with shadow_normal_bias to correct shadow artifacts for a given scene.

shadow_normal_bias: f32

A bias applied along the direction of the fragment’s surface normal. It is scaled to the shadow map’s texel size so that it can be small close to the camera and gets larger further away.

shadow_map_near_z: f32

The distance from the light to near Z plane in the shadow map.

Objects closer than this distance to the light won’t cast shadows. Setting this higher increases the shadow map’s precision.

This only has an effect if shadows are enabled.

Implementations

impl PointLight

pub const DEFAULT_SHADOW_DEPTH_BIAS: f32 = 0.08

pub const DEFAULT_SHADOW_NORMAL_BIAS: f32 = 0.6

pub const DEFAULT_SHADOW_MAP_NEAR_Z: f32 = 0.1

Trait Implementations

impl Clone for PointLight

fn clone(&self) -> PointLight

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Component for PointLight

where PointLight: Send + Sync + 'static,

Required Components: CubemapFrusta, CubemapVisibleEntities, Transform, Visibility, VisibilityClass.

A component’s Required Components are inserted whenever it is inserted. Note that this will also insert the required components of the required components, recursively, in depth-first order.

const STORAGE_TYPE: StorageType = bevy_ecs::component::StorageType::Table

A constant indicating the storage type used for this component.

type Mutability = Mutable

A marker type to assist Bevy with determining if this component is mutable, or immutable. Mutable components will have Component<Mutability = Mutable>, while immutable components will instead have Component<Mutability = Immutable>.

fn register_required_components( _requiree: ComponentId, required_components: &mut RequiredComponentsRegistrator<'_, '_>, )

Registers required components.

fn on_add() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_add ComponentHook for this Component if one is defined.

fn clone_behavior() -> ComponentCloneBehavior

Called when registering this component, allowing to override clone function (or disable cloning altogether) for this component.

fn relationship_accessor() -> Option<ComponentRelationshipAccessor<PointLight>>

Returns ComponentRelationshipAccessor required for working with relationships in dynamic contexts.

fn on_insert() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_insert ComponentHook for this Component if one is defined.

fn on_replace() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_replace ComponentHook for this Component if one is defined.

fn on_remove() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_remove ComponentHook for this Component if one is defined.

fn on_despawn() -> Option<for<'w> fn(DeferredWorld<'w>, HookContext)>

Gets the on_despawn ComponentHook for this Component if one is defined.

fn map_entities<E>(_this: &mut Self, _mapper: &mut E)

where E: EntityMapper,

Maps the entities on this component using the given EntityMapper. This is used to remap entities in contexts like scenes and entity cloning. When deriving Component, this is populated by annotating fields containing entities with #[entities]

impl Debug for PointLight

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for PointLight

fn default() -> PointLight

Returns the “default value” for a type.

impl FromArg for PointLight

type This<'from_arg> = PointLight

The type to convert into.

fn from_arg(arg: Arg<'_>) -> Result<<PointLight as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl FromReflect for PointLight

fn from_reflect(reflect: &(dyn PartialReflect + 'static)) -> Option<PointLight>

Constructs a concrete instance of Self from a reflected value.

fn take_from_reflect( reflect: Box<dyn PartialReflect>, ) -> Result<Self, Box<dyn PartialReflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails.

impl GetOwnership for PointLight

fn ownership() -> Ownership

Returns the ownership of Self.

impl GetTypeRegistration for PointLight

fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.

fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type.

impl IntoReturn for PointLight

fn into_return<'into_return>(self) -> Return<'into_return>

where PointLight: 'into_return,

Converts Self into a Return value.

impl PartialReflect for PointLight

fn get_represented_type_info(&self) -> Option<&'static TypeInfo>

Returns the TypeInfo of the type represented by this value.

fn try_apply( &mut self, value: &(dyn PartialReflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value.

fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type.

fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type.

fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type.

fn reflect_owned(self: Box<PointLight>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn try_into_reflect( self: Box<PointLight>, ) -> Result<Box<dyn Reflect>, Box<dyn PartialReflect>>

Attempts to cast this type to a boxed, fully-reflected value.

fn try_as_reflect(&self) -> Option<&(dyn Reflect + 'static)>

Attempts to cast this type to a fully-reflected value.

fn try_as_reflect_mut(&mut self) -> Option<&mut (dyn Reflect + 'static)>

Attempts to cast this type to a mutable, fully-reflected value.

fn into_partial_reflect(self: Box<PointLight>) -> Box<dyn PartialReflect>

Casts this type to a boxed, reflected value.

fn as_partial_reflect(&self) -> &(dyn PartialReflect + 'static)

Casts this type to a reflected value.

fn as_partial_reflect_mut(&mut self) -> &mut (dyn PartialReflect + 'static)

Casts this type to a mutable, reflected value.

fn reflect_partial_eq( &self, value: &(dyn PartialReflect + 'static), ) -> Option<bool>

Returns a “partial equality” comparison result.

fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value.

fn reflect_clone(&self) -> Result<Box<dyn Reflect>, ReflectCloneError>

Attempts to clone Self using reflection.

fn apply(&mut self, value: &(dyn PartialReflect + 'static))

Applies a reflected value to this value.

fn to_dynamic(&self) -> Box<dyn PartialReflect>

Converts this reflected value into its dynamic representation based on its kind.

fn reflect_clone_and_take<T>(&self) -> Result<T, ReflectCloneError>

where T: 'static, Self: Sized + TypePath,

For a type implementing PartialReflect, combines reflect_clone and take in a useful fashion, automatically constructing an appropriate ReflectCloneError if the downcast fails.

fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type).

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl Reflect for PointLight

fn into_any(self: Box<PointLight>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.

fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.

fn into_reflect(self: Box<PointLight>) -> Box<dyn Reflect>

Casts this type to a boxed, fully-reflected value.

fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a fully-reflected value.

fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable, fully-reflected value.

fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value.

impl Struct for PointLight

fn field(&self, name: &str) -> Option<&(dyn PartialReflect + 'static)>

Returns a reference to the value of the field named name as a &dyn PartialReflect.

fn field_mut( &mut self, name: &str, ) -> Option<&mut (dyn PartialReflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn PartialReflect.

fn field_at(&self, index: usize) -> Option<&(dyn PartialReflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn PartialReflect.

fn field_at_mut( &mut self, index: usize, ) -> Option<&mut (dyn PartialReflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn PartialReflect.

fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.

fn field_len(&self) -> usize

Returns the number of fields in the struct.

fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.

fn to_dynamic_struct(&self) -> DynamicStruct

Creates a new DynamicStruct from this struct.

fn get_represented_struct_info(&self) -> Option<&'static StructInfo>

Will return None if TypeInfo is not available.

impl TypePath for PointLight

fn type_path() -> &'static str

Returns the fully qualified path of the underlying type.

fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type.

fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous.

fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous.

fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous.

impl Typed for PointLight

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

impl Copy for PointLight