Struct FrameInput 

pub struct FrameInput {
    pub cam: Camera2d,
    pub world_size: [f32; 2],
    pub viewport_dp: [f32; 2],
    pub sprites: Vec<SpriteInstance>,
    pub texts: Vec<WorldText>,
    pub background: Option<[f32; 4]>,
    pub overlay_color: Option<[f32; 4]>,
    pub chroma: f32,
}

Everything the viewport draws this frame. Plain snapshot data.

Framing contract: canvas, GPU, and picks all derive from world_size

• cam through effective_fit / fit_view_proj / world_to_dp.

Fields

cam: Camera2d

world_size: [f32; 2]

World-space extent the contain-fit maps into the viewport.

viewport_dp: [f32; 2]

Cold-start viewport size in dp (physical px / density), used for the GPU camera until the first painted FrameGeom arrives. Divide physical px by density before storing here.

sprites: Vec<SpriteInstance>

texts: Vec<WorldText>

World-anchored text, drawn after the sprite pass on canvas. GPU viewports ignore this field; compose texts as sibling views.

background: Option<[f32; 4]>

Full-viewport fill under everything (letterbox included).

overlay_color: Option<[f32; 4]>

Optional fullscreen tint, applied after the sprite pass on canvas and GPU ((c * 255) as u8 per channel, alpha-blended).

chroma: f32

Chromatic aberration amount. GPU renders offscreen and composites back with an RGB split; 0.0 draws the batch into the main pass. Canvas ignores it (vector path has no pixels to sample).

Trait Implementations

impl Clone for FrameInput

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameInput

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

Formats the value using the given formatter.

impl Default for FrameInput

fn default() -> Self

Returns the “default value” for a type.