Struct BorderUniform 

#[repr(C)]
pub struct BorderUniform {
    pub extents: [f32; 4],
    pub color: [f32; 4],
}

One ring’s per-draw uniform: outer + inner clip-space extents and the ring’s RGBA colour. The vertex shader treats the extents as (±outer_x, ±outer_y) for the outer quad corners and (±inner_x, ±inner_y) for the inner quad corners; the four frame strips (top/bottom/left/right) are built from those eight corners.

Fields

extents: [f32; 4]

[outer_x, outer_y, inner_x, inner_y] in clip space [0, 1]. We mirror to (±outer_x, ±outer_y) inside the shader.

color: [f32; 4]

[r, g, b, a]. Pre-multiplied isn’t needed — the pipeline uses standard alpha blending.

Trait Implementations

impl Clone for BorderUniform

fn clone(&self) -> BorderUniform

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BorderUniform

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

Formats the value using the given formatter.

impl Default for BorderUniform

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for BorderUniform

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Zeroable for BorderUniform

fn zeroed() -> Self

Calls zeroed.

impl Copy for BorderUniform

impl Pod for BorderUniform

impl StructuralPartialEq for BorderUniform