Struct ViewportStack 

pub struct ViewportStack { /* private fields */ }

A stack of viewports for managing nested render passes.

Implementations

impl ViewportStack

pub fn new() -> Self

Create an empty stack.

pub fn push(&mut self, viewport: Viewport)

Push a viewport onto the stack.

pub fn pop(&mut self) -> Option<Viewport>

Pop the top viewport from the stack. Returns None if the stack is empty.

pub fn current(&self) -> Option<&Viewport>

Borrow the current (top-of-stack) viewport without removing it.

pub fn depth(&self) -> usize

Stack depth.

pub fn is_empty(&self) -> bool

Returns true when there are no viewports on the stack.

Trait Implementations

impl Debug for ViewportStack

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

Formats the value using the given formatter.

impl Default for ViewportStack

fn default() -> ViewportStack

Returns the “default value” for a type.