Struct bevy::pbr::LightProbe

pub struct LightProbe;
Expand description

A marker component for a light probe, which is a cuboid region that provides global illumination to all fragments inside it.

The light probe range is conceptually a unit cube (1×1×1) centered on the origin. The bevy_transform::prelude::Transform applied to this entity can scale, rotate, or translate that cube so that it contains all fragments that should take this light probe into account.

Note that a light probe will have no effect unless the entity contains some kind of illumination, which can either be an EnvironmentMapLight or an IrradianceVolume.

When multiple sources of indirect illumination can be applied to a fragment, the highest-quality one is chosen. Diffuse and specular illumination are considered separately, so, for example, Bevy may decide to sample the diffuse illumination from an irradiance volume and the specular illumination from a reflection probe. From highest priority to lowest priority, the ranking is as follows:

RankDiffuseSpecular
1LightmapLightmap
2Irradiance volumeReflection probe
3Reflection probeView environment map
4View environment map

Note that ambient light is always added to the diffuse component and does not participate in the ranking. That is, ambient light is applied in addition to, not instead of, the light sources above.

A terminology note: Unfortunately, there is little agreement across game and graphics engines as to what to call the various techniques that Bevy groups under the term light probe. In Bevy, a light probe is the generic term that encompasses both reflection probes and irradiance volumes. In object-oriented terms, light probe is the superclass, and reflection probe and irradiance volume are subclasses. In other engines, you may see the term light probe refer to an irradiance volume with a single voxel, or perhaps some other technique, while in Bevy light probe refers not to a specific technique but rather to a class of techniques. Developers familiar with other engines should be aware of this terminology difference.

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impl LightProbe

pub fn new() -> LightProbe

Creates a new light probe component.

Trait Implementations§

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impl Clone for LightProbe

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fn clone(&self) -> LightProbe

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Component for LightProbe
where LightProbe: Send + Sync + 'static,

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

A constant indicating the storage type used for this component.
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fn register_component_hooks(_hooks: &mut ComponentHooks)

Called when registering this component, allowing mutable access to its ComponentHooks.
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impl Debug for LightProbe

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

Formats the value using the given formatter. Read more
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impl Default for LightProbe

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fn default() -> LightProbe

Returns the “default value” for a type. Read more
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impl FromReflect for LightProbe
where LightProbe: Any + Send + Sync,

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fn from_reflect(reflect: &(dyn Reflect + 'static)) -> Option<LightProbe>

Constructs a concrete instance of Self from a reflected value.
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fn take_from_reflect( reflect: Box<dyn Reflect>, ) -> Result<Self, Box<dyn Reflect>>

Attempts to downcast the given value to Self using, constructing the value using from_reflect if that fails. Read more
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impl GetTypeRegistration for LightProbe
where LightProbe: Any + Send + Sync,

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fn get_type_registration() -> TypeRegistration

Returns the default TypeRegistration for this type.
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fn register_type_dependencies(registry: &mut TypeRegistry)

Registers other types needed by this type. Read more
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impl Reflect for LightProbe
where LightProbe: Any + Send + Sync,

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

Returns the TypeInfo of the type represented by this value. Read more
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fn into_any(self: Box<LightProbe>) -> Box<dyn Any>

Returns the value as a Box<dyn Any>.
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fn as_any(&self) -> &(dyn Any + 'static)

Returns the value as a &dyn Any.
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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Returns the value as a &mut dyn Any.
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fn into_reflect(self: Box<LightProbe>) -> Box<dyn Reflect>

Casts this type to a boxed reflected value.
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fn as_reflect(&self) -> &(dyn Reflect + 'static)

Casts this type to a reflected value.
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fn as_reflect_mut(&mut self) -> &mut (dyn Reflect + 'static)

Casts this type to a mutable reflected value.
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fn clone_value(&self) -> Box<dyn Reflect>

Clones the value as a Reflect trait object. Read more
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fn set(&mut self, value: Box<dyn Reflect>) -> Result<(), Box<dyn Reflect>>

Performs a type-checked assignment of a reflected value to this value. Read more
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fn try_apply( &mut self, value: &(dyn Reflect + 'static), ) -> Result<(), ApplyError>

Tries to apply a reflected value to this value. Read more
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fn reflect_kind(&self) -> ReflectKind

Returns a zero-sized enumeration of “kinds” of type. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an immutable enumeration of “kinds” of type. Read more
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fn reflect_mut(&mut self) -> ReflectMut<'_>

Returns a mutable enumeration of “kinds” of type. Read more
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fn reflect_owned(self: Box<LightProbe>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type. Read more
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fn reflect_partial_eq(&self, value: &(dyn Reflect + 'static)) -> Option<bool>

Returns a “partial equality” comparison result. Read more
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fn apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_hash(&self) -> Option<u64>

Returns a hash of the value (which includes the type). Read more
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fn debug(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Debug formatter for the value. Read more
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fn serializable(&self) -> Option<Serializable<'_>>

Returns a serializable version of the value. Read more
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fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type. Read more
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impl Struct for LightProbe
where LightProbe: Any + Send + Sync,

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

Returns a reference to the value of the field named name as a &dyn Reflect.
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fn field_mut(&mut self, name: &str) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field named name as a &mut dyn Reflect.
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fn field_at(&self, index: usize) -> Option<&(dyn Reflect + 'static)>

Returns a reference to the value of the field with index index as a &dyn Reflect.
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fn field_at_mut(&mut self, index: usize) -> Option<&mut (dyn Reflect + 'static)>

Returns a mutable reference to the value of the field with index index as a &mut dyn Reflect.
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fn name_at(&self, index: usize) -> Option<&str>

Returns the name of the field with index index.
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fn field_len(&self) -> usize

Returns the number of fields in the struct.
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fn iter_fields(&self) -> FieldIter<'_>

Returns an iterator over the values of the reflectable fields for this struct.
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fn clone_dynamic(&self) -> DynamicStruct

Clones the struct into a DynamicStruct.
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impl TypePath for LightProbe
where LightProbe: Any + Send + Sync,

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fn type_path() -> &'static str

Returns the fully qualified path of the underlying type. Read more
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fn short_type_path() -> &'static str

Returns a short, pretty-print enabled path to the type. Read more
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fn type_ident() -> Option<&'static str>

Returns the name of the type, or None if it is anonymous. Read more
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fn crate_name() -> Option<&'static str>

Returns the name of the crate the type is in, or None if it is anonymous. Read more
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fn module_path() -> Option<&'static str>

Returns the path to the module the type is in, or None if it is anonymous. Read more
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impl Typed for LightProbe
where LightProbe: Any + Send + Sync,

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fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.
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impl Copy for LightProbe

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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Return the T ShaderType for self. When used in AsBindGroup derives, it is safe to assume that all images in self exist.
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fn component_ids( components: &mut Components, storages: &mut Storages, ids: &mut impl FnMut(ComponentId), )

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where F: for<'a> FnMut(&'a mut T) -> OwningPtr<'a>,

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fn get_component_ids( components: &Components, ids: &mut impl FnMut(Option<ComponentId>), )

Gets this Bundle’s component ids. This will be None if the component has not been registered.
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Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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