Struct ToneMappingConfig 

pub struct ToneMappingConfig {
    pub operator: ToneMapOperator,
    pub peak_brightness: f32,
    pub white_point: f32,
    pub saturation_correction: f32,
    pub exposure: f32,
    pub knee_start: f32,
}

Configuration for HdrToneMapper.

Use ToneMappingConfig::builder() for ergonomic construction.

Fields

operator: ToneMapOperator

Tone-mapping operator to apply.

peak_brightness: f32

Peak scene-referred brightness of the HDR input, in nits.

For HDR10 content this is typically 1 000 – 4 000 nits. Defaults to 1 000 nits.

white_point: f32

Scene white point in nits — the luminance that should map to SDR white (100 nits).

Defaults to 203 nits (ITU-R BT.2408 reference diffuse white).

saturation_correction: f32

Multiplicative saturation correction applied in linear RGB after tone mapping.

1.0 = neutral. Values > 1 boost saturation, < 1 desaturate. Typical useful range: 0.5 – 2.0. Defaults to 1.0.

exposure: f32

Exposure pre-gain (linear multiplier applied before the tone curve).

1.0 = no adjustment. Use values < 1.0 to darken / protect highlights.

knee_start: f32

Soft-knee start, as a fraction of peak_brightness (0.0 → disabled).

When > 0, a smooth cosine blend replaces the hard transition at the shoulder, reducing clipping artefacts. Defaults to 0.0 (off).

Implementations

impl ToneMappingConfig

pub fn builder() -> ToneMappingConfigBuilder

Create a builder for ergonomic configuration.

Trait Implementations

impl Clone for ToneMappingConfig

fn clone(&self) -> ToneMappingConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToneMappingConfig

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

Formats the value using the given formatter.

impl Default for ToneMappingConfig

fn default() -> Self

Returns the “default value” for a type.