pub struct ViewVisibility(/* private fields */);
Expand description

Algorithmically-computed indication or whether an entity is visible and should be extracted for rendering.

Each frame, this will be reset to false during VisibilityPropagate systems in PostUpdate. Later in the frame, systems in CheckVisibility will mark any visible entities using ViewVisibility::set. Because of this, values of this type will be marked as changed every frame, even when they do not change.

If you wish to add custom visibility system that sets this value, make sure you add it to the CheckVisibility set.

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impl ViewVisibility

pub const HIDDEN: ViewVisibility = _

An entity that cannot be seen from any views.

pub fn get(self) -> bool

Returns true if the entity is visible in any view. Otherwise, returns false.

pub fn set(&mut self)

Sets the visibility to true. This should not be considered reversible for a given frame, as this component tracks whether or not the entity visible in any view.

This will be automatically reset to false every frame in VisibilityPropagate and then set to the proper value in CheckVisibility.

You should only manually set this if you are defining a custom visibility system, in which case the system should be placed in the CheckVisibility set. For normal user-defined entity visibility, see Visibility.

Trait Implementations§

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impl Clone for ViewVisibility

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fn clone(&self) -> ViewVisibility

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 ViewVisibilitywhere ViewVisibility: Send + Sync + 'static,

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type Storage = TableStorage

A marker type indicating the storage type used for this component. This must be either TableStorage or SparseStorage.
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impl Debug for ViewVisibility

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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 ViewVisibility

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fn default() -> ViewVisibility

Returns the “default value” for a type. Read more
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impl Deref for ViewVisibility

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type Target = bool

The resulting type after dereferencing.
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fn deref(&self) -> &<ViewVisibility as Deref>::Target

Dereferences the value.
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impl FromReflect for ViewVisibilitywhere bool: FromReflect,

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

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 ViewVisibilitywhere bool: FromReflect,

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impl PartialEq for ViewVisibility

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fn eq(&self, other: &ViewVisibility) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Reflect for ViewVisibilitywhere bool: FromReflect,

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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<ViewVisibility>) -> 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<ViewVisibility>) -> 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 apply(&mut self, value: &(dyn Reflect + 'static))

Applies a reflected value to this value. Read more
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fn reflect_ref(&self) -> ReflectRef<'_>

Returns an 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<ViewVisibility>) -> 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 type_name(&self) -> &str

👎Deprecated since 0.12.0: view the method documentation to find alternatives to this method.
Returns the type path of the underlying type. 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 TupleStruct for ViewVisibilitywhere bool: FromReflect,

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fn field(&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_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 field_len(&self) -> usize

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

Returns an iterator over the values of the tuple struct’s fields.
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fn clone_dynamic(&self) -> DynamicTupleStruct

Clones the struct into a DynamicTupleStruct.
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impl TypePath for ViewVisibilitywhere bool: FromReflect,

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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 ViewVisibilitywhere bool: FromReflect,

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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 ViewVisibility

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impl Eq for ViewVisibility

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impl StructuralEq for ViewVisibility

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impl StructuralPartialEq for ViewVisibility

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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fn as_bind_group_shader_type(&self, _images: &RenderAssets<Image>) -> U

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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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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