Struct Vertex 

#[repr(C)]
pub struct Vertex {
    pub position: [f32; 2],
    pub color: [f32; 4],
    pub local: [f32; 2],
    pub shape_xy: [f32; 2],
    pub shape_r: f32,
    pub kind: f32,
    pub extra: [f32; 2],
}

A single vertex fed to solid.wgsl.

Fields

position: [f32; 2]

Pixel-space quad-corner position (@location(0)).

color: [f32; 4]

Straight-alpha RGBA colour in [0, 1] (@location(1)).

local: [f32; 2]

Pixel-space position used for SDF evaluation (@location(2)).

shape_xy: [f32; 2]

Shape parameter XY: centre for circle/ellipse/rounded-rect; line-segment start point for lines (@location(3)).

shape_r: f32

Shape parameter R: radius for circle/uniform-rrect; packed u16 pair (tl, tr) for per-corner rrect; (half_width + 0.5 if AA) for lines (@location(4)).

kind: f32

Primitive discriminator (@location(5)): 0 = rect, 1 = circle, 2 = rrect-uniform, 3 = rrect-per-corner, 4 = ellipse, 5 = line-segment.

extra: [f32; 2]

Auxiliary parameters (@location(6)):

• kind 2 (rrect-uniform): [hw, hh] half-extents.
• kind 3 (rrect-per-corner): [pack16(br,bl), pack16(hw,hh)].
• kind 4 (ellipse): [rx, ry].
• kind 5 (line-seg): [to_x, to_y] endpoint B.
• all others: [0, 0].

Implementations

impl Vertex

pub fn color_to_f32(color: Color) -> [f32; 4]

Convert an 8-bit Color into straight-alpha [f32; 4] in [0, 1].

Trait Implementations

impl Clone for Vertex

fn clone(&self) -> Vertex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Vertex

impl Debug for Vertex

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

Formats the value using the given formatter.

impl PartialEq for Vertex

fn eq(&self, other: &Vertex) -> 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 Pod for Vertex

impl StructuralPartialEq for Vertex

impl Zeroable for Vertex

fn zeroed() -> Self

Calls zeroed.