tiny_wgpu 0.1.10

wgpu helper library
Documentation 
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struct VertexInput {
    @builtin(vertex_index) vertex_index: u32,
};

struct VertexOutput {
    @builtin(position) position: vec4<f32>,
    @location(0) coord: vec2<f32>,
};

@vertex
fn vs_main(in: VertexInput) -> VertexOutput {
    var points = array(
        // Triangle 1, which overdraws but still covers the entire screen
        vec2f(-1.0, -4.0),
        vec2f(-1.0, 1.0),
        vec2f(4.0, 1.0),
    );

    var out: VertexOutput;
    out.coord = points[in.vertex_index].xy;
    out.position = vec4f(points[in.vertex_index].xy, 0.0, 1.0);
    return out;
}

@fragment
fn fs_main(in: VertexOutput) -> @location(0) vec4f {
    let uv = in.coord * 0.5 + 0.5;
    return vec4f(uv.xy, 0.0, 1.0);
}