Struct Features

pub struct Features { /* private fields */ }

Features that are not guaranteed to be supported.

These are either part of the webgpu standard, or are extension features supported by wgpu when targeting native.

If you want to use a feature, you need to first verify that the adapter supports the feature. If the adapter does not support the feature, requesting a device with it enabled will panic.

Implementations

impl Features

pub const MAPPABLE_PRIMARY_BUFFERS: Features

Webgpu only allows the MAP_READ and MAP_WRITE buffer usage to be matched with COPY_DST and COPY_SRC respectively. This removes this requirement.

This is only beneficial on systems that share memory between CPU and GPU. If enabled on a system that doesn’t, this can severely hinder performance. Only use if you understand the consequences.

Supported platforms:

• All

This is a native only feature.

pub const SAMPLED_TEXTURE_BINDING_ARRAY: Features

Allows the user to create uniform arrays of sampled textures in shaders:

eg. uniform texture2D textures[10].

This capability allows them to exist and to be indexed by compile time constant values.

Supported platforms:

• DX12
• Metal (with MSL 2.0+ on macOS 10.13+)
• Vulkan

This is a native only feature.

pub const SAMPLED_TEXTURE_ARRAY_DYNAMIC_INDEXING: Features

Allows shaders to index sampled texture arrays with dynamically uniform values:

eg. texture_array[uniform_value]

This capability means the hardware will also support SAMPLED_TEXTURE_BINDING_ARRAY.

Supported platforms:

• DX12
• Metal (with MSL 2.0+ on macOS 10.13+)
• Vulkan’s shaderSampledImageArrayDynamicIndexing feature

This is a native only feature.

pub const SAMPLED_TEXTURE_ARRAY_NON_UNIFORM_INDEXING: Features

Allows shaders to index sampled texture arrays with dynamically non-uniform values:

eg. texture_array[vertex_data]

In order to use this capability, the corresponding GLSL extension must be enabled like so:

#extension GL_EXT_nonuniform_qualifier : require

HLSL does not need any extension.

This capability means the hardware will also support SAMPLED_TEXTURE_ARRAY_DYNAMIC_INDEXING and SAMPLED_TEXTURE_BINDING_ARRAY.

Supported platforms:

• DX12
• Metal (with MSL 2.0+ on macOS 10.13+)
• Vulkan 1.2+ (or VK_EXT_descriptor_indexing)’s shaderSampledImageArrayNonUniformIndexing feature)

This is a native only feature.

pub const UNSIZED_BINDING_ARRAY: Features

Allows the user to create unsized uniform arrays of bindings:

eg. uniform texture2D textures[].

If this capability is supported, SAMPLED_TEXTURE_ARRAY_NON_UNIFORM_INDEXING is very likely to also be supported

Supported platforms:

• DX12
• Vulkan 1.2+ (or VK_EXT_descriptor_indexing)’s runtimeDescriptorArray feature

This is a native only feature.

pub const MULTI_DRAW_INDIRECT: Features

Allows the user to call [RenderPass::multi_draw_indirect] and [RenderPass::multi_draw_indexed_indirect].

Allows multiple indirect calls to be dispatched from a single buffer.

Supported platforms:

• DX12
• Metal
• Vulkan

This is a native only feature.

pub const MULTI_DRAW_INDIRECT_COUNT: Features

Allows the user to call [RenderPass::multi_draw_indirect_count] and [RenderPass::multi_draw_indexed_indirect_count].

This allows the use of a buffer containing the actual number of draw calls.

Supported platforms:

• DX12
• Vulkan 1.2+ (or VK_KHR_draw_indirect_count)

This is a native only feature.

pub const ALL_WEBGPU: Features

Features which are part of the upstream webgpu standard

pub const ALL_NATIVE: Features

Features that are only available when targeting native (not web)

pub const fn empty() -> Features

Returns an empty set of flags

pub const fn all() -> Features

Returns the set containing all flags.

pub const fn bits(&self) -> u64

Returns the raw value of the flags currently stored.

pub fn from_bits(bits: u64) -> Option<Features>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u64) -> Features

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u64) -> Features

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: Features) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: Features) -> bool

Returns true all of the flags in other are contained within self.

pub fn insert(&mut self, other: Features)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: Features)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: Features)

Toggles the specified flags in-place.

pub fn set(&mut self, other: Features, value: bool)

Inserts or removes the specified flags depending on the passed value.

Trait Implementations

impl Binary for Features

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

Formats the value using the given formatter.

impl BitAnd for Features

fn bitand(self, other: Features) -> Features

Returns the intersection between the two sets of flags.

type Output = Features

The resulting type after applying the & operator.

impl BitAndAssign for Features

fn bitand_assign(&mut self, other: Features)

Disables all flags disabled in the set.

impl BitOr for Features

fn bitor(self, other: Features) -> Features

Returns the union of the two sets of flags.

type Output = Features

The resulting type after applying the | operator.

impl BitOrAssign for Features

fn bitor_assign(&mut self, other: Features)

Adds the set of flags.

impl BitXor for Features

fn bitxor(self, other: Features) -> Features

Returns the left flags, but with all the right flags toggled.

type Output = Features

The resulting type after applying the ^ operator.

impl BitXorAssign for Features

fn bitxor_assign(&mut self, other: Features)

Toggles the set of flags.

impl Clone for Features

fn clone(&self) -> Features

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Features

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

Formats the value using the given formatter.

impl Default for Features

fn default() -> Features

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Features

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Extend<Features> for Features

fn extend<T>(&mut self, iterator: T)

where T: IntoIterator<Item = Features>,

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<Features> for Features

fn from_iter<T>(iterator: T) -> Features

where T: IntoIterator<Item = Features>,

Creates a value from an iterator.

impl Hash for Features

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 LowerHex for Features

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

Formats the value using the given formatter.

impl Not for Features

fn not(self) -> Features

Returns the complement of this set of flags.

type Output = Features

The resulting type after applying the ! operator.

impl Octal for Features

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

Formats the value using the given formatter.

impl Ord for Features

fn cmp(&self, other: &Features) -> 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 PartialEq for Features

fn eq(&self, other: &Features) -> 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 PartialOrd for Features

fn partial_cmp(&self, other: &Features) -> 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 Serialize for Features

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 Sub for Features

fn sub(self, other: Features) -> Features

Returns the set difference of the two sets of flags.

type Output = Features

The resulting type after applying the - operator.

impl SubAssign for Features

fn sub_assign(&mut self, other: Features)

Disables all flags enabled in the set.

impl UpperHex for Features

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

Formats the value using the given formatter.

impl Copy for Features

impl Eq for Features

impl StructuralPartialEq for Features