Struct LightUniforms 

#[repr(C)]
pub struct LightUniforms {
    pub directional: [DirectionalLightData; 4],
    pub point: [PointLightData; 8],
    pub num_directional: i32,
    pub num_point: i32,
    pub ambient_intensity: f32,
    pub num_local_lights: i32,
}

All scene lights packed into a single GPU buffer pushed at fragment buffer(4). Must stay in sync with LightUniforms in every .metal shader.

Fields

directional: [DirectionalLightData; 4]

Directional lights, the first num_directional entries live.

point: [PointLightData; 8]

Point lights, the first num_point entries live.

num_directional: i32

Live entries in directional.

num_point: i32

Live entries in point.

ambient_intensity: f32

Multiplier on the indirect (IBL / flat-fallback) ambient term in the main pass, resolved from PostProcessConfig.ambient_intensity. 1.0 leaves the physically derived ambient untouched; higher values lift fill in shadowed areas the directional light cannot reach. Occupies the first of the two trailing pad words, so the 400-byte layout is unchanged.

num_local_lights: i32

Number of valid entries in the GpuLight storage buffer the forward pass reads. Occupies the second trailing pad word, so the 400-byte layout is unchanged. The raymarch / fog / probe paths ignore it and read num_point against the fixed point array instead.

Implementations

impl LightUniforms

pub const DEFAULT: LightUniforms

Neutral directional sun; used when no Light components are declared.

Trait Implementations

impl Clone for LightUniforms

fn clone(&self) -> LightUniforms

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LightUniforms

impl NoUninit for LightUniforms