enable f16;
var<private> m = mat4x4(vec4<f16>(0.0h, 1.0h, 2.0h, 3.0h),
                        vec4<f16>(4.0h, 5.0h, 6.0h, 7.0h),
                        vec4<f16>(8.0h, 9.0h, 10.0h, 11.0h),
                        vec4<f16>(12.0h, 13.0h, 14.0h, 15.0h));