Enum Semantic 

pub enum Semantic {
    Position,
    Normal,
    Tangent(u8),
    TexCoord(u8),
    Color(u8),
    Joints(u8),
    Weights(u8),
    ShaderInput(u8),
    Point(u8),
}

A vertex attribute’s meaning.

Variants

Position

Normal

Tangent(u8)

Tangent set: xyz tangent, w the bitangent sign. Set 0 is glTF’s standard TANGENT.

TexCoord(u8)

u right, v down: (0, 0) is the image’s top-left corner (glTF). Readers of bottom-left conventions store 1 - v.

Color(u8)

Joints(u8)

Weights(u8)

ShaderInput(u8)

Opaque per-vertex shader data, bound by the game’s input index and passed through untransformed. Geometry passes must copy it through; a pass that cannot preserve it must refuse ShaderInput by name. glTF has no attribute for them: a GLB primase writes leaves them out, and its writer counts them.

Point(u8)

A point per vertex in the mesh’s own space (xyz, three floats), bound by the game’s input index: a pivot a vertex program turns the vertex about (a billboard card’s centre). Whatever moves the positions moves it the same way (Moves::Point). glTF has no attribute for it: a GLB primase writes leaves it out, and its writer counts it.

Implementations

impl Semantic

pub const fn moves(self) -> Moves

How a map of space moves a stream of this meaning.

Trait Implementations

impl Clone for Semantic

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Semantic

impl Debug for Semantic

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

Formats the value using the given formatter.

impl Eq for Semantic

impl From<Attribute> for Semantic

fn from(a: Attribute) -> Self

Converts to this type from the input type.

impl From<Semantic> for Attribute

A shader input reads a vertex attribute by the same meaning a mesh stream has.

fn from(s: Semantic) -> Self

Converts to this type from the input type.

impl Hash for Semantic

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

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 Semantic

fn cmp(&self, other: &Self) -> 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.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

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

Restrict a value to a certain range.

impl PartialEq for Semantic

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Semantic

fn partial_cmp(&self, other: &Self) -> 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 Semantic

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Semantic