Struct ChromaticParams 

pub struct ChromaticParams {
    pub enabled: bool,
    pub red_offset: f32,
    pub blue_offset: f32,
    pub green_offset: f32,
    pub radial_scale: bool,
    pub tangential: f32,
    pub spectrum_spread: f32,
    pub barrel_distortion: f32,
}

Chromatic aberration pass parameters.

Fields

enabled: bool

red_offset: f32

Radial offset amount in UV units for the red channel (0.002 = subtle).

blue_offset: f32

Radial offset for the blue channel (usually slightly more than red).

green_offset: f32

Green channel offset (usually 0 — green is the reference channel).

radial_scale: bool

Whether to scale the offset with distance from screen center (true = realistic lens).

tangential: f32

Direction distortion: 0.0 = purely radial, 1.0 = tangential (rotational aberration).

spectrum_spread: f32

Fringe color mixing: 0.0 = clean R/G/B, 1.0 = smeared spectrum.

barrel_distortion: f32

Barrel distortion applied before chromatic split (0.0 = none, 0.1 = visible).

Implementations

impl ChromaticParams

pub fn none() -> Self

Disabled chromatic aberration.

pub fn subtle() -> Self

Subtle lens fringing (high quality glass).

pub fn cheap_lens() -> Self

Cheap plastic lens (pronounced aberration at edges).

pub fn glitch() -> Self

Glitch / digital corruption (non-radial, strong).

pub fn chaos_rift(entropy: f32) -> Self

Chaos Rift proximity effect — scales with entropy [0, 1].

pub fn trauma_shake(trauma: f32) -> Self

Trauma shake chromatic (scales with camera trauma [0, 1]).

pub fn lerp(a: &Self, b: &Self, t: f32) -> Self

Lerp between two chromatic configs.

pub fn channel_uvs(&self, uv: [f32; 2]) -> ([f32; 2], [f32; 2], [f32; 2])

CPU preview: compute the UV offset for each channel at a given screen UV.

Returns (r_uv, g_uv, b_uv) — sample the texture at each of these UVs for the corresponding channel. uv is in [0, 1], center is (0.5, 0.5).

Trait Implementations

impl Clone for ChromaticParams

fn clone(&self) -> ChromaticParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChromaticParams

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

Formats the value using the given formatter.

impl Default for ChromaticParams

fn default() -> Self

Returns the “default value” for a type.