gled 2.28.5

gled is an application for creating animations and effects on artnet or dmx installations
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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 vertices = array<vec2<f32>, 3>(
        vec2<f32>(-1., 1.),
        vec2<f32>(3.0, 1.),
        vec2<f32>(-1., -3.0),
    );

    var out: VertexOutput;
    let coord = vertices[in.vertex_index];
    out.coord = vec2<f32>(
        (coord.x + 1.0) * 0.5,
        (coord.y + 1.0) * 0.5,
    );
    out.position = vec4<f32>(coord, 0.0, 1.0);

    return out;
}