Enum tetra::graphics::BlendMode

pub enum BlendMode {
    Alpha(BlendAlphaMode),
    Add(BlendAlphaMode),
    Subtract(BlendAlphaMode),
    Multiply,
}

The different ways of blending colors.

The active blend mode will be used to determine how drawn content will be blended with the screen (or with a Canvas, if one is active).

For modes where the alpha component of the color can affect the output, an additional BlendAlphaMode parameter is provided, which determines if the colour should be multiplied by its alpha before blending.

Variants

Alpha(BlendAlphaMode)

The alpha of the drawn content will determine its opacity.

This is the default behaviour.

Add(BlendAlphaMode)

The pixel colors of the drawn content will be added to the pixel colors already in the target. The target’s alpha will not be affected.

Subtract(BlendAlphaMode)

The pixel colors of the drawn content will be subtracted from the pixel colors already in the target. The target’s alpha will not be affected.

Multiply

The pixel colors of the drawn content will be multiplied with the pixel colors already in the target. The alpha component will also be multiplied.

Trait Implementations

impl Clone for BlendMode

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

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

Formats the value using the given formatter.

impl Default for BlendMode

fn default() -> BlendMode

Returns the “default value” for a type.

impl Eq for BlendMode

impl PartialEq<BlendMode> for BlendMode

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

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

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

This method tests for !=.

impl StructuralEq for BlendMode

impl StructuralPartialEq for BlendMode