Struct LineVertex 

#[repr(C)]
pub struct LineVertex {
    pub position: [f32; 3],
    pub color: [f32; 4],
    pub line_normal: [f32; 2],
    pub line_distance: f32,
    pub cap_join: f32,
}

A vertex for the dedicated line GPU pipeline.

Extends the basic vector vertex with per-vertex distance along the polyline centreline, an extrusion normal, and a cap/join flag. The fragment shader uses the distance for dash-pattern evaluation and the cap/join flag to switch between linear edge AA (ribbon body) and SDF circle-based AA (round caps/joins).

Fields

position: [f32; 3]

Position [x, y, z] in camera-relative meters.

color: [f32; 4]

Per-vertex RGBA color.

line_normal: [f32; 2]

Extrusion normal [nx, ny] perpendicular to the line centreline.

For ribbon body vertices the magnitude is 1.0. For round cap/join fan vertices the magnitude is slightly > 1.0 (circumscribed) so that the SDF clip at magnitude 1.0 traces a perfect circle.

line_distance: f32

Distance along the polyline centreline (world-space meters).

cap_join: f32

Cap/join flag: 1.0 for round cap/join fan vertices, 0.0 for ribbon body. When > 0.5, the fragment shader uses SDF circle AA instead of linear edge AA and discards fragments beyond the ideal circle boundary.

Implementations

impl LineVertex

pub fn layout() -> VertexBufferLayout<'static>

Vertex buffer layout for the line pipeline.

Trait Implementations

impl Clone for LineVertex

fn clone(&self) -> LineVertex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LineVertex

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

Formats the value using the given formatter.

impl Zeroable for LineVertex

fn zeroed() -> Self

Calls zeroed.

impl Copy for LineVertex

impl Pod for LineVertex