Enum BuiltIn 

pub enum BuiltIn {
    Position {
        invariant: bool,
    },
    ViewIndex,
    BaseInstance,
    BaseVertex,
    ClipDistance,
    CullDistance,
    InstanceIndex,
    PointSize,
    VertexIndex,
    DrawID,
    FragDepth,
    PointCoord,
    FrontFacing,
    PrimitiveIndex,
    Barycentric,
    SampleIndex,
    SampleMask,
    GlobalInvocationId,
    LocalInvocationId,
    LocalInvocationIndex,
    WorkGroupId,
    WorkGroupSize,
    NumWorkGroups,
    NumSubgroups,
    SubgroupId,
    SubgroupSize,
    SubgroupInvocationId,
    MeshTaskSize,
    CullPrimitive,
    PointIndex,
    LineIndices,
    TriangleIndices,
    VertexCount,
    Vertices,
    PrimitiveCount,
    Primitives,
}

Available on crate feature unstable-wgpu-28 only.

Built-in inputs and outputs.

Variants

Position

Written in vertex/mesh shaders, read in fragment shaders

Fields

invariant: bool

ViewIndex

Read in task, mesh, vertex, and fragment shaders

BaseInstance

Read in vertex shaders

BaseVertex

Read in vertex shaders

ClipDistance

Written in vertex & mesh shaders

CullDistance

Written in vertex & mesh shaders

InstanceIndex

Read in vertex shaders

PointSize

Written in vertex & mesh shaders

VertexIndex

Read in vertex shaders

DrawID

Read in vertex & task shaders, or mesh shaders in pipelines without task shaders

FragDepth

Written in fragment shaders

PointCoord

Read in fragment shaders

FrontFacing

Read in fragment shaders

PrimitiveIndex

Read in fragment shaders, written in mesh shaders

Barycentric

Read in fragment shaders

SampleIndex

Read in fragment shaders

SampleMask

Read or written in fragment shaders

GlobalInvocationId

Read in compute, task, and mesh shaders

LocalInvocationId

Read in compute, task, and mesh shaders

LocalInvocationIndex

Read in compute, task, and mesh shaders

WorkGroupId

Read in compute, task, and mesh shaders

WorkGroupSize

Read in compute, task, and mesh shaders

NumWorkGroups

Read in compute, task, and mesh shaders

NumSubgroups

Read in compute, task, and mesh shaders

SubgroupId

Read in compute, task, and mesh shaders

SubgroupSize

Read in compute, fragment, task, and mesh shaders

SubgroupInvocationId

Read in compute, fragment, task, and mesh shaders

MeshTaskSize

Written in task shaders

CullPrimitive

Written in mesh shaders

PointIndex

Written in mesh shaders

LineIndices

Written in mesh shaders

TriangleIndices

Written in mesh shaders

VertexCount

Written to a workgroup variable in mesh shaders

Vertices

Written to a workgroup variable in mesh shaders

PrimitiveCount

Written to a workgroup variable in mesh shaders

Primitives

Written to a workgroup variable in mesh shaders

Trait Implementations

impl Clone for BuiltIn

fn clone(&self) -> BuiltIn

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BuiltIn

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

Formats the value using the given formatter.

impl Hash for BuiltIn

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 Ord for BuiltIn

fn cmp(&self, other: &BuiltIn) -> 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 BuiltIn

fn eq(&self, other: &BuiltIn) -> 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 BuiltIn

fn partial_cmp(&self, other: &BuiltIn) -> 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 TryToWgsl for BuiltIn

const DESCRIPTION: &'static str = "builtin value"

What kind of WGSL thing Self represents.

fn try_to_wgsl(self) -> Option<&'static str>

Return the WGSL form of self as a 'static string.

fn to_wgsl_for_diagnostics(self) -> String

where Self: Debug + Copy,

Return the WGSL form of self as appropriate for diagnostics.

impl Copy for BuiltIn

impl Eq for BuiltIn

impl StructuralPartialEq for BuiltIn