Struct ColorGradeNode 

pub struct ColorGradeNode {
    pub brightness: f32,
    pub contrast: f32,
    pub saturation: f32,
    pub temperature: f32,
    pub tint: f32,
    /* private fields */
}

Basic colour grading: brightness, contrast, saturation, temperature, tint.

Processing order

brightness → contrast → temperature/tint → saturation

Fields

brightness: f32

Additive brightness offset (−1.0 – +1.0; 0.0 = no change).

contrast: f32

Contrast multiplier around 0.5 (0.0 – 4.0; 1.0 = no change).

saturation: f32

Saturation multiplier (0.0 = greyscale; 1.0 = no change; 2.0 = double).

temperature: f32

Colour temperature offset (−1.0 = cool/blue; +1.0 = warm/orange).

tint: f32

Tint offset (−1.0 = magenta; +1.0 = green).

Implementations

impl ColorGradeNode

pub fn new( brightness: f32, contrast: f32, saturation: f32, temperature: f32, tint: f32, ) -> Self

Identity node (no colour change).

Trait Implementations

impl Default for ColorGradeNode

fn default() -> Self

Returns the “default value” for a type.

impl RenderNode for ColorGradeNode

Available on crate feature wgpu only.

fn process( &self, inputs: &[&Texture], outputs: &[&Texture], ctx: &RenderContext, )

Run the GPU render pass.

fn input_count(&self) -> usize

Number of input textures required by this node (default: 1).

fn pass_count(&self) -> usize

Number of render passes (default: 1). Multi-pass nodes (e.g. gaussian blur) return 2 or more.

impl RenderNodeCpu for ColorGradeNode

fn process_cpu(&self, rgba: &mut [u8], _w: u32, _h: u32)

Process rgba in-place.