Struct AmbientCube 

pub struct AmbientCube {
    pub positive_x: Color,
    pub negative_x: Color,
    pub positive_y: Color,
    pub negative_y: Color,
    pub positive_z: Color,
    pub negative_z: Color,
}

A 6-directional ambient cube encoding low-frequency lighting from the six axis directions. Simpler than SH but can capture more directional variation than a single ambient color.

Fields

positive_x: Color

Color contribution from the +X direction.

negative_x: Color

Color contribution from the -X direction.

positive_y: Color

Color contribution from the +Y direction (up).

negative_y: Color

Color contribution from the -Y direction (down).

positive_z: Color

Color contribution from the +Z direction.

negative_z: Color

Color contribution from the -Z direction.

Implementations

impl AmbientCube

pub fn new( px: Color, nx: Color, py: Color, ny: Color, pz: Color, nz: Color, ) -> Self

pub fn uniform(color: Color) -> Self

Create a uniform ambient cube from a single color.

pub fn from_sky_ground(sky: Color, ground: Color) -> Self

Create from sky (up) and ground (down) colors with interpolation for sides.

pub fn evaluate(&self, normal: Vec3) -> Color

Evaluate the ambient color for a given normal direction.

pub fn lerp(&self, other: &Self, t: f32) -> Self

Linearly interpolate between two ambient cubes.

pub fn to_sh(&self) -> SphericalHarmonics9

Convert to spherical harmonics (L=1 approximation).

Trait Implementations

impl Clone for AmbientCube

fn clone(&self) -> AmbientCube

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AmbientCube

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

Formats the value using the given formatter.

impl Default for AmbientCube

fn default() -> Self

Returns the “default value” for a type.