Enum vulkano::pipeline::graphics::color_blend::BlendFactor

#[non_exhaustive]
#[repr(i32)]
pub enum BlendFactor {
    Zero = 0,
    One = 1,
    SrcColor = 2,
    OneMinusSrcColor = 3,
    DstColor = 4,
    OneMinusDstColor = 5,
    SrcAlpha = 6,
    OneMinusSrcAlpha = 7,
    DstAlpha = 8,
    OneMinusDstAlpha = 9,
    ConstantColor = 10,
    OneMinusConstantColor = 11,
    ConstantAlpha = 12,
    OneMinusConstantAlpha = 13,
    SrcAlphaSaturate = 14,
    Src1Color = 15,
    OneMinusSrc1Color = 16,
    Src1Alpha = 17,
    OneMinusSrc1Alpha = 18,
}

The operation that takes source (output from the fragment shader), destination (value currently in the framebuffer attachment) and blend_constant input values, and produces new inputs to be fed to BlendOp.

Some operations take source1 as an input, representing the second source value. The dual_src_blend feature must be enabled on the device when these are used.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Zero = 0

Always 0.

One = 1

Always 1.

SrcColor = 2

source component-wise.

OneMinusSrcColor = 3

1 - source component-wise.

DstColor = 4

destination component-wise.

OneMinusDstColor = 5

1 - destination component-wise.

SrcAlpha = 6

source.a for all components.

OneMinusSrcAlpha = 7

1 - source.a for all components.

DstAlpha = 8

destination.a for all components.

OneMinusDstAlpha = 9

1 - destination.a for all components.

ConstantColor = 10

blend_constants component-wise.

OneMinusConstantColor = 11

1 - blend_constants component-wise.

ConstantAlpha = 12

blend_constants.a for all components.

On portability subset devices, if this value is used for the color_source or color_destination blend factors, then the constant_alpha_color_blend_factors feature must be enabled on the device.

OneMinusConstantAlpha = 13

1 - blend_constants.a for all components.

On portability subset devices, if this value is used for the color_source or color_destination blend factors, then the constant_alpha_color_blend_factors feature must be enabled on the device.

SrcAlphaSaturate = 14

For the alpha component, always 1. For the color components, min(source.a, 1 - destination.a) for all components.

Src1Color = 15

source1 component-wise.

OneMinusSrc1Color = 16

1 - source1 component-wise.

Src1Alpha = 17

source1.a for all components.

OneMinusSrc1Alpha = 18

1 - source1.a for all components.

Trait Implementations

impl Clone for BlendFactor

fn clone(&self) -> BlendFactor

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for BlendFactor

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

Formats the value using the given formatter.

impl From<BlendFactor> for BlendFactor

fn from(val: BlendFactor) -> Self

Converts to this type from the input type.

impl Hash for BlendFactor

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

Feeds this value into the given Hasher.

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

Feeds a slice of this type into the given Hasher.

impl PartialEq for BlendFactor

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

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

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

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

impl TryFrom<BlendFactor> for BlendFactor

type Error = ()

The type returned in the event of a conversion error.

fn try_from(val: BlendFactor) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for BlendFactor

impl Eq for BlendFactor

impl StructuralEq for BlendFactor

impl StructuralPartialEq for BlendFactor