Struct composable::views::gpu::Output

pub struct Output { /* private fields */ }

Available on crate features unstable and views only.

Implementations

impl Output

pub fn new(rounding: f32) -> Self

Creates an indexed-triangle data Output.

pub fn into_inner(self) -> (Vec<(i16, i16, [u8; 4])>, Vec<u32>)

Consumes the Output and returns the constructed indexed-triangle data.

• vertices are stored as (x, y, rgba) tuples
• indices are stored as 32-bit offsets

Example

A WGSL shader that consumes this Output’s output:

struct VertexInput {
    @location(0) xy: u32,
    @location(1) rgba: u32,
};

struct VertexOutput {
    @builtin(position) xyzw: vec4<f32>,
    @location(0) rgba: vec4<f32>,
};

@vertex
fn vs_main(
    in: VertexInput,
) -> VertexOutput {
    var out: VertexOutput;

    out.xyzw = vec4<f32>(unpack2x16snorm(in.xy), 1.0, 1.0);
    out.rgba = unpack4x8unorm(in.rgba);

    return out;
}

@fragment
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
    return in.rgba;
}

Trait Implementations

impl Output for Output

fn begin(&mut self, x: f32, y: f32, rgba: [u8; 4], transform: &Transform)

Begins a new path.

fn line_to(&mut self, x: f32, y: f32)

Adds a line to the current path.

fn quadratic_bezier_to(&mut self, x1: f32, y1: f32, x: f32, y: f32)

Adds a quadratic Bézier to the current path.

fn cubic_bezier_to( &mut self, x1: f32, y1: f32, x2: f32, y2: f32, x: f32, y: f32, )

Adds a cubic Bézier to the current path.

fn close(&mut self)

Closes the current path.