Struct Brush 

#[repr(C)]
pub struct Brush {
    pub color: ColorU,
    pub radius: f32,
    pub hardness: f32,
    pub flow: f32,
    pub spacing: f32,
}

A soft round brush for the painting API.

The same parameters drive the CPU rasterizer (RawImage::paint_dot) and the GPU brush shader, so a stroke looks identical whether it lands on a RawImage or a Texture.

Fields

color: ColorU

Brush color (its alpha scales the dab opacity together with flow).

radius: f32

Brush radius in pixels.

hardness: f32

Edge hardness, 0.0 (fully feathered) .. 1.0 (hard edge). Opaque out to hardness * radius, then a smooth falloff to zero at the edge.

flow: f32

Per-dab opacity multiplier, 0.0..1.0. Values < 1 let overlapping dabs build up smoothly (the “metaball”-like blend).

spacing: f32

Spacing between stamped dabs along a stroke, as a fraction of radius (e.g. 0.25 = a dab every quarter-radius). Smaller = smoother + slower.

Implementations

impl Brush

pub const fn new(color: ColorU, radius: f32) -> Self

A sensible default brush: medium-soft, full flow, dense spacing.

Trait Implementations

impl Clone for Brush

fn clone(&self) -> Brush

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Brush

impl Debug for Brush

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

Formats the value using the given formatter.

impl PartialEq for Brush

fn eq(&self, other: &Brush) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Brush