Struct PcfKernel 

pub struct PcfKernel {
    pub offsets: Vec<(f32, f32)>,
    pub weights: Vec<f32>,
    pub texel_size: f32,
}

Percentage-closer filtering kernel for soft shadows.

Fields

offsets: Vec<(f32, f32)>

Sample offsets (in texels).

weights: Vec<f32>

Corresponding weights (should sum to 1.0).

texel_size: f32

Texel size for the shadow map.

Implementations

impl PcfKernel

pub fn kernel_3x3(texel_size: f32) -> Self

Create a 3x3 PCF kernel.

pub fn kernel_5x5(texel_size: f32) -> Self

Create a 5x5 PCF kernel.

pub fn poisson_disk(sample_count: usize, texel_size: f32) -> Self

Create a Poisson disk PCF kernel with the given number of samples.

pub fn sample(&self, shadow_map: &ShadowMap, world_pos: Vec3, bias: f32) -> f32

Sample the shadow map with PCF filtering. Returns shadow factor (0.0..1.0).

pub fn sample_atlas( &self, atlas: &ShadowAtlas, region_idx: usize, u: f32, v: f32, depth: f32, bias: f32, ) -> f32

Sample from a shadow atlas region.

Trait Implementations

impl Clone for PcfKernel

fn clone(&self) -> PcfKernel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PcfKernel

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

Formats the value using the given formatter.