Enum graphics::draw_state::Blend
source · pub enum Blend {
Alpha,
Add,
Lighter,
Multiply,
Invert,
}
Expand description
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§
source§impl PartialOrd for Blend
impl PartialOrd for Blend
impl Copy for Blend
impl StructuralPartialEq for Blend
Auto Trait Implementations§
impl Freeze for Blend
impl RefUnwindSafe for Blend
impl Send for Blend
impl Sync for Blend
impl Unpin for Blend
impl UnwindSafe for Blend
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)