Struct HslNode 

pub struct HslNode {
    pub hue_shift: f32,
    pub saturation: f32,
    pub lightness: f32,
    /* private fields */
}

Hue, saturation, and lightness adjustment.

Fields

hue_shift: f32

Hue rotation in degrees (−180 to +180; 0 = no change).

saturation: f32

Saturation multiplier (0.0 = greyscale, 1.0 = unchanged, 2.0 = double).

lightness: f32

Lightness offset (−1.0 to +1.0; 0 = no change).

Implementations

impl HslNode

pub fn new(hue_shift: f32, saturation: f32, lightness: f32) -> Self

Creates an HSL adjustment node.

Trait Implementations

impl Default for HslNode

fn default() -> Self

Identity node (no HSL change).

impl RenderNode for HslNode

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.

fn output_dimensions(&self, in_w: u32, in_h: u32) -> (u32, u32)

Output dimensions this node produces given its input dimensions.

fn set_param(&self, _param: NodeParam) -> bool

Applies param to this node in place, returning whether it was taken.

impl RenderNodeCpu for HslNode

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

Process rgba in-place.