Enum AssetId

pub enum AssetId<A>
where
    A: Asset,
{
    Index {
        index: AssetIndex,
        marker: PhantomData<fn() -> A>,
    },
    Uuid {
        uuid: Uuid,
    },
}

A unique runtime-only identifier for an Asset. This is cheap to Copy/Clone and is not directly tied to the lifetime of the Asset. This means it can point to an Asset that no longer exists.

For an identifier tied to the lifetime of an asset, see Handle.

For an “untyped” / “generic-less” id, see UntypedAssetId.

Variants

Index

A small / efficient runtime identifier that can be used to efficiently look up an asset stored in Assets. This is the “default” identifier used for assets. The alternative(s) (ex: AssetId::Uuid) will only be used if assets are explicitly registered that way.

Fields

index: AssetIndex

The unstable, opaque index of the asset.

marker: PhantomData<fn() -> A>

A marker to store the type information of the asset.

Uuid

A stable-across-runs / const asset identifier. This will only be used if an asset is explicitly registered in Assets with one.

Fields

uuid: Uuid

The UUID provided during asset registration.

Implementations

impl<A> AssetId<A>

where A: Asset,

pub const DEFAULT_UUID: Uuid

The uuid for the default AssetId. It is valid to assign a value to this in Assets and by convention (where appropriate) assets should support this pattern.

pub const INVALID_UUID: Uuid

This asset id should never be valid. Assigning a value to this in Assets will produce undefined behavior, so don’t do it!

pub const fn invalid() -> AssetId<A>

Returns an AssetId with Self::INVALID_UUID, which should never be assigned to.

Examples found in repository

examples/shader/custom_phase_item.rs (line 278)

fn queue_custom_phase_item(
    pipeline_cache: Res<PipelineCache>,
    custom_phase_pipeline: Res<CustomPhasePipeline>,
    mut opaque_render_phases: ResMut<ViewBinnedRenderPhases<Opaque3d>>,
    opaque_draw_functions: Res<DrawFunctions<Opaque3d>>,
    mut specialized_render_pipelines: ResMut<SpecializedRenderPipelines<CustomPhasePipeline>>,
    views: Query<(&ExtractedView, &RenderVisibleEntities, &Msaa)>,
    mut next_tick: Local<Tick>,
) {
    let draw_custom_phase_item = opaque_draw_functions
        .read()
        .id::<DrawCustomPhaseItemCommands>();

    // Render phases are per-view, so we need to iterate over all views so that
    // the entity appears in them. (In this example, we have only one view, but
    // it's good practice to loop over all views anyway.)
    for (view, view_visible_entities, msaa) in views.iter() {
        let Some(opaque_phase) = opaque_render_phases.get_mut(&view.retained_view_entity) else {
            continue;
        };

        // Find all the custom rendered entities that are visible from this
        // view.
        for &entity in view_visible_entities.get::<CustomRenderedEntity>().iter() {
            // Ordinarily, the [`SpecializedRenderPipeline::Key`] would contain
            // some per-view settings, such as whether the view is HDR, but for
            // simplicity's sake we simply hard-code the view's characteristics,
            // with the exception of number of MSAA samples.
            let pipeline_id = specialized_render_pipelines.specialize(
                &pipeline_cache,
                &custom_phase_pipeline,
                *msaa,
            );

            // Bump the change tick in order to force Bevy to rebuild the bin.
            let this_tick = next_tick.get() + 1;
            next_tick.set(this_tick);

            // Add the custom render item. We use the
            // [`BinnedRenderPhaseType::NonMesh`] type to skip the special
            // handling that Bevy has for meshes (preprocessing, indirect
            // draws, etc.)
            //
            // The asset ID is arbitrary; we simply use [`AssetId::invalid`],
            // but you can use anything you like. Note that the asset ID need
            // not be the ID of a [`Mesh`].
            opaque_phase.add(
                Opaque3dBatchSetKey {
                    draw_function: draw_custom_phase_item,
                    pipeline: pipeline_id,
                    material_bind_group_index: None,
                    lightmap_slab: None,
                    vertex_slab: default(),
                    index_slab: None,
                },
                Opaque3dBinKey {
                    asset_id: AssetId::<Mesh>::invalid().untyped(),
                },
                entity,
                InputUniformIndex::default(),
                BinnedRenderPhaseType::NonMesh,
                *next_tick,
            );
        }
    }
}

examples/shader/specialized_mesh_pipeline.rs (line 425)

fn queue_custom_mesh_pipeline(
    pipeline_cache: Res<PipelineCache>,
    custom_mesh_pipeline: Res<CustomMeshPipeline>,
    (mut opaque_render_phases, opaque_draw_functions): (
        ResMut<ViewBinnedRenderPhases<Opaque3d>>,
        Res<DrawFunctions<Opaque3d>>,
    ),
    mut specialized_mesh_pipelines: ResMut<SpecializedMeshPipelines<CustomMeshPipeline>>,
    views: Query<(
        &RenderVisibleEntities,
        &ExtractedView,
        &Msaa,
        Has<NoIndirectDrawing>,
        Has<OcclusionCulling>,
    )>,
    (render_meshes, render_mesh_instances): (
        Res<RenderAssets<RenderMesh>>,
        Res<RenderMeshInstances>,
    ),
    param: StaticSystemParam<<MeshPipeline as GetBatchData>::Param>,
    mut phase_batched_instance_buffers: ResMut<
        PhaseBatchedInstanceBuffers<Opaque3d, <MeshPipeline as GetBatchData>::BufferData>,
    >,
    mut phase_indirect_parameters_buffers: ResMut<PhaseIndirectParametersBuffers<Opaque3d>>,
    mut change_tick: Local<Tick>,
) {
    let system_param_item = param.into_inner();

    let UntypedPhaseBatchedInstanceBuffers {
        ref mut data_buffer,
        ref mut work_item_buffers,
        ref mut late_indexed_indirect_parameters_buffer,
        ref mut late_non_indexed_indirect_parameters_buffer,
        ..
    } = phase_batched_instance_buffers.buffers;

    // Get the id for our custom draw function
    let draw_function_id = opaque_draw_functions
        .read()
        .id::<DrawSpecializedPipelineCommands>();

    // Render phases are per-view, so we need to iterate over all views so that
    // the entity appears in them. (In this example, we have only one view, but
    // it's good practice to loop over all views anyway.)
    for (view_visible_entities, view, msaa, no_indirect_drawing, gpu_occlusion_culling) in
        views.iter()
    {
        let Some(opaque_phase) = opaque_render_phases.get_mut(&view.retained_view_entity) else {
            continue;
        };

        // Create *work item buffers* if necessary. Work item buffers store the
        // indices of meshes that are to be rendered when indirect drawing is
        // enabled.
        let work_item_buffer = gpu_preprocessing::get_or_create_work_item_buffer::<Opaque3d>(
            work_item_buffers,
            view.retained_view_entity,
            no_indirect_drawing,
            gpu_occlusion_culling,
        );

        // Initialize those work item buffers in preparation for this new frame.
        gpu_preprocessing::init_work_item_buffers(
            work_item_buffer,
            late_indexed_indirect_parameters_buffer,
            late_non_indexed_indirect_parameters_buffer,
        );

        // Create the key based on the view. In this case we only care about MSAA and HDR
        let view_key = MeshPipelineKey::from_msaa_samples(msaa.samples())
            | MeshPipelineKey::from_hdr(view.hdr);

        // Set up a slot to hold information about the batch set we're going to
        // create. If there are any of our custom meshes in the scene, we'll
        // need this information in order for Bevy to kick off the rendering.
        let mut mesh_batch_set_info = None;

        // Find all the custom rendered entities that are visible from this
        // view.
        for &(render_entity, visible_entity) in
            view_visible_entities.get::<CustomRenderedEntity>().iter()
        {
            // Get the mesh instance
            let Some(mesh_instance) = render_mesh_instances.render_mesh_queue_data(visible_entity)
            else {
                continue;
            };

            // Get the mesh data
            let Some(mesh) = render_meshes.get(mesh_instance.mesh_asset_id) else {
                continue;
            };

            // Specialize the key for the current mesh entity
            // For this example we only specialize based on the mesh topology
            // but you could have more complex keys and that's where you'd need to create those keys
            let mut mesh_key = view_key;
            mesh_key |= MeshPipelineKey::from_primitive_topology(mesh.primitive_topology());

            // Initialize the batch set information if this was the first custom
            // mesh we saw. We'll need that information later to create the
            // batch set.
            if mesh_batch_set_info.is_none() {
                mesh_batch_set_info = Some(MeshBatchSetInfo {
                    indirect_parameters_index: phase_indirect_parameters_buffers
                        .buffers
                        .allocate(mesh.indexed(), 1),
                    is_indexed: mesh.indexed(),
                });
            }
            let mesh_info = mesh_batch_set_info.unwrap();

            // Allocate some input and output indices. We'll need these to
            // create the *work item* below.
            let Some(input_index) =
                MeshPipeline::get_binned_index(&system_param_item, visible_entity)
            else {
                continue;
            };
            let output_index = data_buffer.add() as u32;

            // Finally, we can specialize the pipeline based on the key
            let pipeline_id = specialized_mesh_pipelines
                .specialize(
                    &pipeline_cache,
                    &custom_mesh_pipeline,
                    mesh_key,
                    &mesh.layout,
                )
                // This should never with this example, but if your pipeline specialization
                // can fail you need to handle the error here
                .expect("Failed to specialize mesh pipeline");

            // Bump the change tick so that Bevy is forced to rebuild the bin.
            let next_change_tick = change_tick.get() + 1;
            change_tick.set(next_change_tick);

            // Add the mesh with our specialized pipeline
            opaque_phase.add(
                Opaque3dBatchSetKey {
                    draw_function: draw_function_id,
                    pipeline: pipeline_id,
                    material_bind_group_index: None,
                    vertex_slab: default(),
                    index_slab: None,
                    lightmap_slab: None,
                },
                // The asset ID is arbitrary; we simply use [`AssetId::invalid`],
                // but you can use anything you like. Note that the asset ID need
                // not be the ID of a [`Mesh`].
                Opaque3dBinKey {
                    asset_id: AssetId::<Mesh>::invalid().untyped(),
                },
                (render_entity, visible_entity),
                mesh_instance.current_uniform_index,
                // This example supports batching, but if your pipeline doesn't
                // support it you can use `BinnedRenderPhaseType::UnbatchableMesh`
                BinnedRenderPhaseType::BatchableMesh,
                *change_tick,
            );

            // Create a *work item*. A work item tells the Bevy renderer to
            // transform the mesh on GPU.
            work_item_buffer.push(
                mesh.indexed(),
                PreprocessWorkItem {
                    input_index: input_index.into(),
                    output_or_indirect_parameters_index: if no_indirect_drawing {
                        output_index
                    } else {
                        mesh_info.indirect_parameters_index
                    },
                },
            );
        }

        // Now if there were any meshes, we need to add a command to the
        // indirect parameters buffer, so that the renderer will end up
        // enqueuing a command to draw the mesh.
        if let Some(mesh_info) = mesh_batch_set_info {
            phase_indirect_parameters_buffers
                .buffers
                .add_batch_set(mesh_info.is_indexed, mesh_info.indirect_parameters_index);
        }
    }
}

pub fn untyped(self) -> UntypedAssetId

Converts this to an “untyped” / “generic-less” Asset identifier that stores the type information inside the UntypedAssetId.

Examples found in repository

examples/shader/custom_phase_item.rs (line 278)

fn queue_custom_phase_item(
    pipeline_cache: Res<PipelineCache>,
    custom_phase_pipeline: Res<CustomPhasePipeline>,
    mut opaque_render_phases: ResMut<ViewBinnedRenderPhases<Opaque3d>>,
    opaque_draw_functions: Res<DrawFunctions<Opaque3d>>,
    mut specialized_render_pipelines: ResMut<SpecializedRenderPipelines<CustomPhasePipeline>>,
    views: Query<(&ExtractedView, &RenderVisibleEntities, &Msaa)>,
    mut next_tick: Local<Tick>,
) {
    let draw_custom_phase_item = opaque_draw_functions
        .read()
        .id::<DrawCustomPhaseItemCommands>();

    // Render phases are per-view, so we need to iterate over all views so that
    // the entity appears in them. (In this example, we have only one view, but
    // it's good practice to loop over all views anyway.)
    for (view, view_visible_entities, msaa) in views.iter() {
        let Some(opaque_phase) = opaque_render_phases.get_mut(&view.retained_view_entity) else {
            continue;
        };

        // Find all the custom rendered entities that are visible from this
        // view.
        for &entity in view_visible_entities.get::<CustomRenderedEntity>().iter() {
            // Ordinarily, the [`SpecializedRenderPipeline::Key`] would contain
            // some per-view settings, such as whether the view is HDR, but for
            // simplicity's sake we simply hard-code the view's characteristics,
            // with the exception of number of MSAA samples.
            let pipeline_id = specialized_render_pipelines.specialize(
                &pipeline_cache,
                &custom_phase_pipeline,
                *msaa,
            );

            // Bump the change tick in order to force Bevy to rebuild the bin.
            let this_tick = next_tick.get() + 1;
            next_tick.set(this_tick);

            // Add the custom render item. We use the
            // [`BinnedRenderPhaseType::NonMesh`] type to skip the special
            // handling that Bevy has for meshes (preprocessing, indirect
            // draws, etc.)
            //
            // The asset ID is arbitrary; we simply use [`AssetId::invalid`],
            // but you can use anything you like. Note that the asset ID need
            // not be the ID of a [`Mesh`].
            opaque_phase.add(
                Opaque3dBatchSetKey {
                    draw_function: draw_custom_phase_item,
                    pipeline: pipeline_id,
                    material_bind_group_index: None,
                    lightmap_slab: None,
                    vertex_slab: default(),
                    index_slab: None,
                },
                Opaque3dBinKey {
                    asset_id: AssetId::<Mesh>::invalid().untyped(),
                },
                entity,
                InputUniformIndex::default(),
                BinnedRenderPhaseType::NonMesh,
                *next_tick,
            );
        }
    }
}

examples/shader/specialized_mesh_pipeline.rs (line 425)

fn queue_custom_mesh_pipeline(
    pipeline_cache: Res<PipelineCache>,
    custom_mesh_pipeline: Res<CustomMeshPipeline>,
    (mut opaque_render_phases, opaque_draw_functions): (
        ResMut<ViewBinnedRenderPhases<Opaque3d>>,
        Res<DrawFunctions<Opaque3d>>,
    ),
    mut specialized_mesh_pipelines: ResMut<SpecializedMeshPipelines<CustomMeshPipeline>>,
    views: Query<(
        &RenderVisibleEntities,
        &ExtractedView,
        &Msaa,
        Has<NoIndirectDrawing>,
        Has<OcclusionCulling>,
    )>,
    (render_meshes, render_mesh_instances): (
        Res<RenderAssets<RenderMesh>>,
        Res<RenderMeshInstances>,
    ),
    param: StaticSystemParam<<MeshPipeline as GetBatchData>::Param>,
    mut phase_batched_instance_buffers: ResMut<
        PhaseBatchedInstanceBuffers<Opaque3d, <MeshPipeline as GetBatchData>::BufferData>,
    >,
    mut phase_indirect_parameters_buffers: ResMut<PhaseIndirectParametersBuffers<Opaque3d>>,
    mut change_tick: Local<Tick>,
) {
    let system_param_item = param.into_inner();

    let UntypedPhaseBatchedInstanceBuffers {
        ref mut data_buffer,
        ref mut work_item_buffers,
        ref mut late_indexed_indirect_parameters_buffer,
        ref mut late_non_indexed_indirect_parameters_buffer,
        ..
    } = phase_batched_instance_buffers.buffers;

    // Get the id for our custom draw function
    let draw_function_id = opaque_draw_functions
        .read()
        .id::<DrawSpecializedPipelineCommands>();

    // Render phases are per-view, so we need to iterate over all views so that
    // the entity appears in them. (In this example, we have only one view, but
    // it's good practice to loop over all views anyway.)
    for (view_visible_entities, view, msaa, no_indirect_drawing, gpu_occlusion_culling) in
        views.iter()
    {
        let Some(opaque_phase) = opaque_render_phases.get_mut(&view.retained_view_entity) else {
            continue;
        };

        // Create *work item buffers* if necessary. Work item buffers store the
        // indices of meshes that are to be rendered when indirect drawing is
        // enabled.
        let work_item_buffer = gpu_preprocessing::get_or_create_work_item_buffer::<Opaque3d>(
            work_item_buffers,
            view.retained_view_entity,
            no_indirect_drawing,
            gpu_occlusion_culling,
        );

        // Initialize those work item buffers in preparation for this new frame.
        gpu_preprocessing::init_work_item_buffers(
            work_item_buffer,
            late_indexed_indirect_parameters_buffer,
            late_non_indexed_indirect_parameters_buffer,
        );

        // Create the key based on the view. In this case we only care about MSAA and HDR
        let view_key = MeshPipelineKey::from_msaa_samples(msaa.samples())
            | MeshPipelineKey::from_hdr(view.hdr);

        // Set up a slot to hold information about the batch set we're going to
        // create. If there are any of our custom meshes in the scene, we'll
        // need this information in order for Bevy to kick off the rendering.
        let mut mesh_batch_set_info = None;

        // Find all the custom rendered entities that are visible from this
        // view.
        for &(render_entity, visible_entity) in
            view_visible_entities.get::<CustomRenderedEntity>().iter()
        {
            // Get the mesh instance
            let Some(mesh_instance) = render_mesh_instances.render_mesh_queue_data(visible_entity)
            else {
                continue;
            };

            // Get the mesh data
            let Some(mesh) = render_meshes.get(mesh_instance.mesh_asset_id) else {
                continue;
            };

            // Specialize the key for the current mesh entity
            // For this example we only specialize based on the mesh topology
            // but you could have more complex keys and that's where you'd need to create those keys
            let mut mesh_key = view_key;
            mesh_key |= MeshPipelineKey::from_primitive_topology(mesh.primitive_topology());

            // Initialize the batch set information if this was the first custom
            // mesh we saw. We'll need that information later to create the
            // batch set.
            if mesh_batch_set_info.is_none() {
                mesh_batch_set_info = Some(MeshBatchSetInfo {
                    indirect_parameters_index: phase_indirect_parameters_buffers
                        .buffers
                        .allocate(mesh.indexed(), 1),
                    is_indexed: mesh.indexed(),
                });
            }
            let mesh_info = mesh_batch_set_info.unwrap();

            // Allocate some input and output indices. We'll need these to
            // create the *work item* below.
            let Some(input_index) =
                MeshPipeline::get_binned_index(&system_param_item, visible_entity)
            else {
                continue;
            };
            let output_index = data_buffer.add() as u32;

            // Finally, we can specialize the pipeline based on the key
            let pipeline_id = specialized_mesh_pipelines
                .specialize(
                    &pipeline_cache,
                    &custom_mesh_pipeline,
                    mesh_key,
                    &mesh.layout,
                )
                // This should never with this example, but if your pipeline specialization
                // can fail you need to handle the error here
                .expect("Failed to specialize mesh pipeline");

            // Bump the change tick so that Bevy is forced to rebuild the bin.
            let next_change_tick = change_tick.get() + 1;
            change_tick.set(next_change_tick);

            // Add the mesh with our specialized pipeline
            opaque_phase.add(
                Opaque3dBatchSetKey {
                    draw_function: draw_function_id,
                    pipeline: pipeline_id,
                    material_bind_group_index: None,
                    vertex_slab: default(),
                    index_slab: None,
                    lightmap_slab: None,
                },
                // The asset ID is arbitrary; we simply use [`AssetId::invalid`],
                // but you can use anything you like. Note that the asset ID need
                // not be the ID of a [`Mesh`].
                Opaque3dBinKey {
                    asset_id: AssetId::<Mesh>::invalid().untyped(),
                },
                (render_entity, visible_entity),
                mesh_instance.current_uniform_index,
                // This example supports batching, but if your pipeline doesn't
                // support it you can use `BinnedRenderPhaseType::UnbatchableMesh`
                BinnedRenderPhaseType::BatchableMesh,
                *change_tick,
            );

            // Create a *work item*. A work item tells the Bevy renderer to
            // transform the mesh on GPU.
            work_item_buffer.push(
                mesh.indexed(),
                PreprocessWorkItem {
                    input_index: input_index.into(),
                    output_or_indirect_parameters_index: if no_indirect_drawing {
                        output_index
                    } else {
                        mesh_info.indirect_parameters_index
                    },
                },
            );
        }

        // Now if there were any meshes, we need to add a command to the
        // indirect parameters buffer, so that the renderer will end up
        // enqueuing a command to draw the mesh.
        if let Some(mesh_info) = mesh_batch_set_info {
            phase_indirect_parameters_buffers
                .buffers
                .add_batch_set(mesh_info.is_indexed, mesh_info.indirect_parameters_index);
        }
    }
}

Trait Implementations

impl<A> Clone for AssetId<A>

where A: Asset,

fn clone(&self) -> AssetId<A>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A> Debug for AssetId<A>

where A: Asset,

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

Formats the value using the given formatter.

impl<A> Default for AssetId<A>

where A: Asset,

fn default() -> AssetId<A>

Returns the “default value” for a type.

impl<'de, A> Deserialize<'de> for AssetId<A>

where A: Asset,

fn deserialize<__D>( __deserializer: __D, ) -> Result<AssetId<A>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<A> Display for AssetId<A>

where A: Asset,

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

Formats the value using the given formatter.

impl<A> Enum for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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

Returns a reference to the value of the field (in the current variant) with the given name.

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

Returns a reference to the value of the field (in the current variant) at the given index.

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

Returns a mutable reference to the value of the field (in the current variant) with the given name.

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

Returns a mutable reference to the value of the field (in the current variant) at the given index.

fn index_of(&self, __name_param: &str) -> Option<usize>

Returns the index of the field (in the current variant) with the given name.

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

Returns the name of the field (in the current variant) with the given index.

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

Returns an iterator over the values of the current variant’s fields.

fn field_len(&self) -> usize

Returns the number of fields in the current variant.

fn variant_name(&self) -> &str

The name of the current variant.

fn variant_index(&self) -> usize

The index of the current variant.

fn variant_type(&self) -> VariantType

The type of the current variant.

fn to_dynamic_enum(&self) -> DynamicEnum

Creates a new DynamicEnum from this enum.

fn clone_dynamic(&self) -> DynamicEnum

👎Deprecated since 0.16.0: use to_dynamic_enum instead

fn is_variant(&self, variant_type: VariantType) -> bool

Returns true if the current variant’s type matches the given one.

fn variant_path(&self) -> String

Returns the full path to the current variant.

fn get_represented_enum_info(&self) -> Option<&'static EnumInfo>

Will return None if TypeInfo is not available.

impl From<&AnimationGraphHandle> for AssetId<AnimationGraph>

fn from(handle: &AnimationGraphHandle) -> AssetId<AnimationGraph>

Converts to this type from the input type.

impl<A> From<&Handle<A>> for AssetId<A>

where A: Asset,

fn from(value: &Handle<A>) -> AssetId<A>

Converts to this type from the input type.

impl<M> From<&MaterialNode<M>> for AssetId<M>

where M: UiMaterial,

fn from(material: &MaterialNode<M>) -> AssetId<M>

Converts to this type from the input type.

impl From<&Mesh2d> for AssetId<Mesh>

fn from(mesh: &Mesh2d) -> AssetId<Mesh>

Converts to this type from the input type.

impl From<&Mesh3d> for AssetId<Mesh>

fn from(mesh: &Mesh3d) -> AssetId<Mesh>

Converts to this type from the input type.

impl<M> From<&MeshMaterial2d<M>> for AssetId<M>

where M: Material2d,

fn from(material: &MeshMaterial2d<M>) -> AssetId<M>

Converts to this type from the input type.

impl<M> From<&MeshMaterial3d<M>> for AssetId<M>

where M: Material,

fn from(material: &MeshMaterial3d<M>) -> AssetId<M>

Converts to this type from the input type.

impl From<&MeshletMesh3d> for AssetId<MeshletMesh>

fn from(mesh: &MeshletMesh3d) -> AssetId<MeshletMesh>

Converts to this type from the input type.

impl<A> From<&mut Handle<A>> for AssetId<A>

where A: Asset,

fn from(value: &mut Handle<A>) -> AssetId<A>

Converts to this type from the input type.

impl<A> From<(AssetIndex, PhantomData<fn() -> A>)> for AssetId<A>

where A: Asset,

fn from(value: (AssetIndex, PhantomData<fn() -> A>)) -> AssetId<A>

Converts to this type from the input type.

impl From<AnimationGraphHandle> for AssetId<AnimationGraph>

fn from(handle: AnimationGraphHandle) -> AssetId<AnimationGraph>

Converts to this type from the input type.

impl<A> From<AssetId<A>> for UntypedAssetId

where A: Asset,

fn from(value: AssetId<A>) -> UntypedAssetId

Converts to this type from the input type.

impl<A> From<AssetIndex> for AssetId<A>

where A: Asset,

fn from(value: AssetIndex) -> AssetId<A>

Converts to this type from the input type.

impl<M> From<MaterialNode<M>> for AssetId<M>

where M: UiMaterial,

fn from(material: MaterialNode<M>) -> AssetId<M>

Converts to this type from the input type.

impl From<Mesh2d> for AssetId<Mesh>

fn from(mesh: Mesh2d) -> AssetId<Mesh>

Converts to this type from the input type.

impl From<Mesh3d> for AssetId<Mesh>

fn from(mesh: Mesh3d) -> AssetId<Mesh>

Converts to this type from the input type.

impl<M> From<MeshMaterial2d<M>> for AssetId<M>

where M: Material2d,

fn from(material: MeshMaterial2d<M>) -> AssetId<M>

Converts to this type from the input type.

impl<M> From<MeshMaterial3d<M>> for AssetId<M>

where M: Material,

fn from(material: MeshMaterial3d<M>) -> AssetId<M>

Converts to this type from the input type.

impl From<MeshletMesh3d> for AssetId<MeshletMesh>

fn from(mesh: MeshletMesh3d) -> AssetId<MeshletMesh>

Converts to this type from the input type.

impl<A> From<Uuid> for AssetId<A>

where A: Asset,

fn from(value: Uuid) -> AssetId<A>

Converts to this type from the input type.

impl<A> FromArg for &'static AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = &'from_arg AssetId<A>

The type to convert into.

fn from_arg( arg: Arg<'_>, ) -> Result<<&'static AssetId<A> as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl<A> FromArg for &'static mut AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = &'from_arg mut AssetId<A>

The type to convert into.

fn from_arg( arg: Arg<'_>, ) -> Result<<&'static mut AssetId<A> as FromArg>::This<'_>, ArgError>

Creates an item from an argument.

impl<A> FromArg for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

type This<'from_arg> = AssetId<A>

The type to convert into.

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

Creates an item from an argument.

impl<A> FromReflect for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn from_reflect(__param0: &(dyn PartialReflect + 'static)) -> Option<AssetId<A>>

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<A> GetOwnership for &AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl<A> GetOwnership for &mut AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl<A> GetOwnership for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn ownership() -> Ownership

Returns the ownership of Self.

impl<A> GetTypeRegistration for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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<A> Hash for AssetId<A>

where A: Asset,

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<A> IntoReturn for &AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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

where &AssetId<A>: 'into_return,

Converts Self into a Return value.

impl<A> IntoReturn for &mut AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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

where &mut AssetId<A>: 'into_return,

Converts Self into a Return value.

impl<A> IntoReturn for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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

where AssetId<A>: 'into_return,

Converts Self into a Return value.

impl<A> Ord for AssetId<A>

where A: Asset,

fn cmp(&self, other: &AssetId<A>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<A> PartialEq<AssetId<A>> for UntypedAssetId

where A: Asset,

fn eq(&self, other: &AssetId<A>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A> PartialEq<UntypedAssetId> for AssetId<A>

where A: Asset,

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A> PartialEq for AssetId<A>

where A: Asset,

fn eq(&self, other: &AssetId<A>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<A> PartialOrd<AssetId<A>> for UntypedAssetId

where A: Asset,

fn partial_cmp(&self, other: &AssetId<A>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<A> PartialOrd<UntypedAssetId> for AssetId<A>

where A: Asset,

fn partial_cmp(&self, other: &UntypedAssetId) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<A> PartialOrd for AssetId<A>

where A: Asset,

fn partial_cmp(&self, other: &AssetId<A>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<A> PartialReflect for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

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_param: &(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<AssetId<A>>) -> ReflectOwned

Returns an owned enumeration of “kinds” of type.

fn try_into_reflect( self: Box<AssetId<A>>, ) -> 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<AssetId<A>>) -> 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_hash(&self) -> Option<u64>

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

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 clone_value(&self) -> Box<dyn PartialReflect>

👎Deprecated since 0.16.0: to clone reflected values, prefer using reflect_clone. To convert reflected values to dynamic ones, use to_dynamic.

Clones Self into its dynamic representation.

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

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

fn is_dynamic(&self) -> bool

Indicates whether or not this type is a dynamic type.

impl<A> Reflect for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn into_any(self: Box<AssetId<A>>) -> 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<AssetId<A>>) -> 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<A> Serialize for AssetId<A>

where A: Asset,

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<A> TryFrom<UntypedAssetId> for AssetId<A>

where A: Asset,

type Error = UntypedAssetIdConversionError

The type returned in the event of a conversion error.

fn try_from( value: UntypedAssetId, ) -> Result<AssetId<A>, <AssetId<A> as TryFrom<UntypedAssetId>>::Error>

Performs the conversion.

impl<A> TypePath for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync,

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<A> Typed for AssetId<A>

where A: Asset + TypePath, AssetId<A>: Any + Send + Sync, AssetIndex: FromReflect + TypePath + MaybeTyped + RegisterForReflection, Uuid: FromReflect + TypePath + MaybeTyped + RegisterForReflection,

fn type_info() -> &'static TypeInfo

Returns the compile-time info for the underlying type.

impl<A> Copy for AssetId<A>

where A: Asset,

impl<A> Eq for AssetId<A>

where A: Asset,