Struct ShadowAtlasRegion 

pub struct ShadowAtlasRegion {
    pub x: u32,
    pub y: u32,
    pub width: u32,
    pub height: u32,
    pub light_id: Option<LightId>,
}

A region within the shadow atlas.

Fields

x: u32

Top-left X in the atlas (in texels).

y: u32

Top-left Y in the atlas (in texels).

width: u32

Width of this region.

height: u32

Height of this region.

light_id: Option<LightId>

Which light owns this region.

Implementations

impl ShadowAtlasRegion

pub fn new(x: u32, y: u32, width: u32, height: u32) -> Self

pub fn atlas_to_region_uv( &self, atlas_width: u32, atlas_height: u32, u: f32, v: f32, ) -> (f32, f32)

Convert atlas-space UV to region-space UV.

pub fn region_to_atlas_uv( &self, atlas_width: u32, atlas_height: u32, u: f32, v: f32, ) -> (f32, f32)

Convert region-space UV to atlas-space UV.

pub fn contains(&self, px: u32, py: u32) -> bool

Check if a point (in texels) falls within this region.

pub fn area(&self) -> u32

Area in texels.

Trait Implementations

impl Clone for ShadowAtlasRegion

fn clone(&self) -> ShadowAtlasRegion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShadowAtlasRegion

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

Formats the value using the given formatter.

impl Copy for ShadowAtlasRegion