Struct SHCoeffs 

pub struct SHCoeffs {
    pub coeffs: [f32; 9],
}

SH coefficients for propagation (2nd order, 9 coefficients).

Fields

coeffs: [f32; 9]

Implementations

impl SHCoeffs

pub fn evaluate(&self, direction: Vec3) -> f32

Evaluate the SH representation at a given direction.

pub fn project(&mut self, direction: Vec3, value: f32)

Project a directional contribution into SH.

pub fn add(&self, other: &SHCoeffs) -> SHCoeffs

pub fn scale(&self, s: f32) -> SHCoeffs

pub fn convolve_cosine(&self) -> SHCoeffs

Convolve with clamped cosine kernel (for diffuse transfer).

pub fn from_direction(dir: Vec3) -> SHCoeffs

Create SH representation of a delta function in the given direction.

pub fn energy(&self) -> f32

Total energy (L2 norm squared).

Trait Implementations

impl Clone for SHCoeffs

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 SHCoeffs

impl Debug for SHCoeffs

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

Formats the value using the given formatter.

impl Default for SHCoeffs

fn default() -> Self

Returns the “default value” for a type.