struct VertexIn {
    @location(0) x: f32,
    @location(1) y: f32,
    @location(2) z: f32,
    @location(3) nx: f32,
    @location(4) ny: f32,
    @location(5) nz: f32,
    @location(6) u: f32,
    @location(7) v: f32,
}
struct VertexOut {
    @builtin(position) clip: vec4<f32>,
    @location(0) normal: vec3<f32>,
    @location(1) uv: vec2<f32>,
}

@vertex
fn vs_main(vi: VertexIn) -> VertexOut {
    let vo = VertexOut(
        vec4(vi.x * 0.1, vi.y * 0.1, 0., 1.),
        vec3(vi.nx, vi.ny, vi.nz),
        vec2(vi.u, vi.v),
    );
    return vo;
}
@fragment
fn fs_main(vo: VertexOut) -> @location(0) vec4<f32> {
    return vec4<f32>(vo.normal, 1.0);
}