Struct PassDescriptor 

pub struct PassDescriptor {
    pub clear: Option<[f32; 4]>,
    pub samples: u32,
    pub viewport: Option<PassViewport>,
}

How a pass is configured, beyond the draws themselves.

Grouped rather than passed as loose parameters so later pass-level state — stencil, depth, damage regions — extends this without changing every backend’s signature.

Fields

clear: Option<[f32; 4]>

Clear to this color first, or preserve the target’s contents.

samples: u32

MSAA sample count. 1 disables multisampling.

Rendering is multisampled and resolved into the target, so the target itself stays single-sampled and directly readable.

viewport: Option<PassViewport>

Where this pass’s clip space lands in the target, if not the whole of it.

None maps clip space onto the target exactly, which is what every pass wants whose geometry was recorded against the target it renders into. A pass whose geometry was recorded against a larger space sets this to crop instead of scale — see PassViewport.

Implementations

impl PassDescriptor

pub fn clear(color: [f32; 4]) -> Self

pub fn with_viewport(self, viewport: PassViewport) -> Self

Land this pass’s clip space on part of the target rather than all of it.

pub fn preserve() -> Self

pub fn with_samples(self, samples: u32) -> Self

pub fn is_multisampled(&self) -> bool

Trait Implementations

impl Clone for PassDescriptor

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 PassDescriptor

impl Debug for PassDescriptor

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

Formats the value using the given formatter.

impl Default for PassDescriptor

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for PassDescriptor

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PassDescriptor