Struct LightProbeGrid 

pub struct LightProbeGrid {
    pub origin: Vec3,
    pub cell_size: Vec3,
    pub count_x: u32,
    pub count_y: u32,
    pub count_z: u32,
    pub probes: Vec<LightProbe>,
}

A 3D grid of SH light probes with trilinear interpolation.

Fields

origin: Vec3

Grid origin (minimum corner).

cell_size: Vec3

Grid cell size.

count_x: u32

Number of probes along each axis.

count_y: u32

count_z: u32

probes: Vec<LightProbe>

Probes stored in a flat array: index = z * (count_x * count_y) + y * count_x + x.

Implementations

impl LightProbeGrid

pub fn new( origin: Vec3, cell_size: Vec3, count_x: u32, count_y: u32, count_z: u32, ) -> Self

Create a new grid of probes.

pub fn probe_at(&self, x: u32, y: u32, z: u32) -> Option<&LightProbe>

Get a reference to the probe at grid coordinates.

pub fn probe_at_mut( &mut self, x: u32, y: u32, z: u32, ) -> Option<&mut LightProbe>

Get a mutable reference to the probe at grid coordinates.

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

Sample irradiance at a world position using trilinear interpolation.

pub fn bounds(&self) -> (Vec3, Vec3)

Get the bounding box of the grid in world space.

pub fn contains(&self, point: Vec3) -> bool

Check if a world position is inside the grid.

pub fn probe_count(&self) -> usize

Total number of probes.

pub fn fill_uniform(&mut self, color: Color)

Mark all probes as valid with a uniform ambient color.

pub fn fill_sky_ground(&mut self, sky: Color, ground: Color)

Mark all probes as valid with a sky/ground gradient.

Trait Implementations

impl Clone for LightProbeGrid

fn clone(&self) -> LightProbeGrid

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LightProbeGrid

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

Formats the value using the given formatter.