Enum screen_13::gpu::BlendMode

pub enum BlendMode {
    Add,
    AlphaAdd,
    ColorBurn,
    ColorDodge,
    Color,
    Darken,
    DarkerColor,
    Difference,
    Divide,
    Exclusion,
    HardLight,
    HardMix,
    LinearBurn,
    Multiply,
    Normal,
    Overlay,
    Screen,
    Subtract,
    VividLight,
}

Specifies a method for combining two images using a mathmatical formula.

Variants

Add

Blend formula: a + b

AlphaAdd

Blend formula:

ColorBurn

Blend formula: 1 - (1 - a) / b

ColorDodge

Blend formula: a / (1 - b)

Color

Blend formula:

Darken

Blend formula: min(a, b)

DarkerColor

Blend formula: min(a, b) (per-component)

Difference

Blend formula: abs(a - b)

Divide

Blend formula: a / b

Exclusion

Blend formula: a + b - 2 * a * b

HardLight

Blend formula: hard_light(a, b) (per-component)

Where:

• hard_light(a, b) = if b < 0.5 { 2 * a * b } else { 1 - 2 * (1 - a) * (1 - b) }

HardMix

Blend formula: hard_mix(a, b) (per-component)

Where:

• hard_mix(a, b) = if b < 0.5 { 2 * a * b } else { 1 - 2 * (1 - a) * (1 - b) }

LinearBurn

Blend formula: a + b - 1

Multiply

Blend formula: a * b

Normal

Blend formula: b

NOTE: This is the default blend mode.

Overlay

Blend formula: overlay(a, b) (per-component)

Where:

• overlay(a, b) = if b < 0.5 { 2 * a * b } else { 1 - 2 * (1 - a) * (1 - b) }

Screen

Blend formula: 1 - (1 - a) * (1 - b)

Subtract

Blend formula: a - b

VividLight

Blend formula: vivid_light(a, b) (per-component)

Where:

• vivid_light(a, b) = if b < 0.5 { 1 - (1 - a) / b } else { a / (1 - b) }

Trait Implementations

impl Clone for BlendMode

pub fn clone(&self) -> BlendMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for BlendMode

impl Debug for BlendMode

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

Formats the value using the given formatter.

impl Default for BlendMode

pub fn default() -> Self

Returns the "default value" for a type.

impl Eq for BlendMode

impl Hash for BlendMode

pub fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<BlendMode> for BlendMode

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

This method tests for self and other values to be equal, and is used by ==.

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl StructuralEq for BlendMode

impl StructuralPartialEq for BlendMode