Enum CubeFace 

#[repr(u8)]
pub enum CubeFace {
    PosX = 0,
    NegX = 1,
    PosY = 2,
    NegY = 3,
    PosZ = 4,
    NegZ = 5,
}

One of the six faces of an axis-aligned cube.

The discriminants are stable (u8) and match the wgpu cubemap face ordering, so CubeFace::index can be used directly to address a texture_cube_array layer set.

Variants

PosX = 0

+X face.

NegX = 1

-X face.

PosY = 2

+Y face.

NegY = 3

-Y face.

PosZ = 4

+Z face.

NegZ = 5

-Z face.

Implementations

impl CubeFace

pub const ALL: [CubeFace; 6]

All six faces in wgpu cubemap order: [+X, -X, +Y, -Y, +Z, -Z].

Use this with Iterator::map or array .map() to produce per-face data structures (view matrices, render passes, atlas slots…) in a stable order that matches the GPU’s expectation.

pub const fn index(self) -> usize

Returns the layer index this face occupies inside a texture_cube_array slice (0..=5).

pub const fn forward(self) -> Vec3

World-space direction the rendering camera looks toward when rasterising this face.

pub const fn up(self) -> Vec3

World-space “up” direction matching the wgpu / Vulkan / D3D11 cubemap convention. The ±Y faces use ±Z as their up vector to keep look_at_rh(eye, eye + face.forward(), face.up()) non-degenerate.

pub fn from_direction(dir: Vec3) -> CubeFace

Picks the face whose forward axis is most aligned with dir (largest absolute component wins, sign chooses the half-axis).

This is the major-axis selection used in CPU-side cubemap sampling debug paths and unit tests; the GPU equivalent runs in hardware during textureSampleCompareLevel(cube, ...).

Trait Implementations

impl Clone for CubeFace

fn clone(&self) -> CubeFace

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CubeFace

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

Formats the value using the given formatter.

impl Hash for CubeFace

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 PartialEq for CubeFace

fn eq(&self, other: &CubeFace) -> 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 Copy for CubeFace

impl Eq for CubeFace

impl StructuralPartialEq for CubeFace