Struct SpotShadowData 

#[repr(C)]
pub struct SpotShadowData {
    pub light_vp: [[f32; 4]; 4],
    pub depth_bias: f32,
    pub normal_bias: f32,
    pub _pad: [f32; 2],
}

One shadowed spot light’s slice of the spot shadow map array. Indexed by GpuLight.shadow_index; the index doubles as the array slice. Uploaded once per scene, since local lights are static.

80 bytes: the matrix fills the first four 16-byte lanes and the three scalars plus a pad fill the fifth, so the MSL (float4x4 + floats), HLSL (no 16-byte straddle), and GLSL std430 (mat4 align-16) layouts all agree.

Fields

light_vp: [[f32; 4]; 4]

World -> light clip matrix for this spot, column-major.

depth_bias: f32

Constant depth offset applied when comparing against the stored depth.

normal_bias: f32

Offset along the surface normal before projecting, which suppresses shadow acne on surfaces near-parallel to the light.

_pad: [f32; 2]

Padding so the field layout matches the shader-side struct.

Implementations

impl SpotShadowData

pub const ZERO: SpotShadowData

An all-zero slice, used to fill unused entries.

Trait Implementations

impl Clone for SpotShadowData

fn clone(&self) -> SpotShadowData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SpotShadowData

impl Debug for SpotShadowData

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

Formats the value using the given formatter.

impl NoUninit for SpotShadowData