Enum Input 

#[non_exhaustive]
pub enum Input {
    Frame,
    Backdrop,
}

What a shader reads besides its own parameters.

The frame and the backdrop are the pixels drawn before the node. A node that sits inside an unfinished layer (a group with opacity below 1, a blur, a clip, a blend or a shadow) cannot read them, and check reports input_cycle.

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.

Frame

Everything painted before this node, in screen coordinates.

Backdrop

What the parent painted before this node. On a node that is not in a layer this is the same as Input::Frame.

Implementations

impl Input

pub fn frame() -> Self

The whole frame before this node.

pub fn backdrop() -> Self

What was painted before this node in its parent’s layer.

pub fn name(self) -> &'static str

"frame" or "backdrop".

Trait Implementations

impl Clone for Input

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Input

impl Debug for Input

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

Formats the value using the given formatter.

impl Eq for Input

impl PartialEq for Input

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Input