[][src]Enum piston_window::draw_state::Blend

pub enum Blend {
    Alpha,
    Add,
    Lighter,
    Multiply,
    Invert,
}

The blend setting to use when drawing.

Using presets since some backends need one pipeline state object instance per blending technique.

Variants

Alpha

Alpha blending (allows semi-transparent pixels).

new_dest_color = src_color * src_alpha + dest_color * (1 - src_alpha)
new_dest_alpha = src_alpha + dest_alpha
Add

Additive blending.

new_dest_color = src_color + dest_color
new_dest_alpha = src_alpha + dest_alpha
Lighter

Additive blending with alpha channel.

new_dest_color = src_color * src_alpha + dest_color
new_dest_alpha = dest_alpha
Multiply

Multiply color components.

new_dest_color = src_color * dest_color
new_dest_alpha = src_alpha * dest_alpha
Invert

Invert colors when rendering a white shape.

new_dest_color = ref_color - src_color
new_dest_alpha = dest_alpha

When combining two fragments, subtract the destination color from a constant color using the source color as weight. Has an invert effect with the constant color as base and source color controlling displacement from the base color. A white source color and a white value results in plain invert. The output alpha is same as destination alpha.

Trait Implementations

impl Clone for Blend[src]

impl Copy for Blend[src]

impl Debug for Blend[src]

impl PartialEq<Blend> for Blend[src]

impl PartialOrd<Blend> for Blend[src]

impl StructuralPartialEq for Blend[src]

Auto Trait Implementations

impl RefUnwindSafe for Blend

impl Send for Blend

impl Sync for Blend

impl Unpin for Blend

impl UnwindSafe for Blend

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> SetParameter for T[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.