Enum MaskKind 

pub enum MaskKind {
    Luminance,
    Alpha,
}

How to interpret a soft mask’s rasterised pixels as a coverage modulator.

Variants

Luminance

Convert the mask’s RGB to luminance (ITU-R BT.709 coefficients — Y = 0.2126·R + 0.7152·G + 0.0722·B) and use Y as the per-pixel alpha multiplier. Matches SVG <mask> default (mask-type="luminance") and PDF SMask /Luminosity.

Alpha

Use the mask’s own alpha channel as the multiplier. Matches SVG <mask mask-type="alpha"> and PDF SMask /Alpha.

Trait Implementations

impl Clone for MaskKind

fn clone(&self) -> MaskKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MaskKind

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

Formats the value using the given formatter.

impl Default for MaskKind

fn default() -> MaskKind

Returns the “default value” for a type.

impl PartialEq for MaskKind

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for MaskKind

impl Eq for MaskKind

impl StructuralPartialEq for MaskKind