Enum RenderResolution 

pub enum RenderResolution {
    Native,
    Fixed {
        w: u32,
        h: u32,
    },
    Scale(f32),
}

Where the per-pixel raycaster actually runs, decoupled from the window size (RP.0). Both backends are per-pixel marchers, so frame cost scales with the pixel count — rendering into a fixed logical target and nearest-upscaling it to the window makes FPS independent of window size and creates the seam for the later posterize / SSAA post (RP.1/RP.2).

The default (Native) keeps logical == window and is byte-identical to the pre-RP straight blit.

Variants

Native

Logical resolution == window. Default. Identical to pre-RP behaviour.

Fixed

Fixed logical grid, independent of the window (the retro pixel grid). Upscaled to the window with nearest sampling (hard pixels). A logical aspect ratio different from the window’s stretches non-uniformly — a deliberate, classic fixed-res look (no letterbox in RP.0).

Fields

w: u32

Logical framebuffer width, pixels.

h: u32

Logical framebuffer height, pixels.

Scale(f32)

Logical = round(window * factor). 0.5 ⇒ a quarter of the pixels, aspect preserved. Clamped to >= 1px per axis.

Trait Implementations

impl Clone for RenderResolution

fn clone(&self) -> RenderResolution

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RenderResolution

impl Debug for RenderResolution

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

Formats the value using the given formatter.

impl Default for RenderResolution

fn default() -> RenderResolution

Returns the “default value” for a type.

impl PartialEq for RenderResolution

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RenderResolution