@vertex
fn vs_main(
    @location(0) in_vertex_position: vec2f
) -> @builtin(position) vec4f {
    return vec4f(in_vertex_position, 0.0, 1.0);
}

@fragment
fn fs_main() -> @location(0) vec4f {
    return vec4f(0.001, 0.001, 0.001, 1.0);
}