let mut frame = display.draw();
b.iter(|| {
let model = [[0.7, 0.5, -0.5, 0.0], [0.0, 0.7, 0.7, 0.0], [0.7, -0.5, 0.5, 0.0], [0., 0., -3.0, 1.0f32]];
let mut frame = display.draw();
b.iter(|| {
let model = [[0.7, 0.5, -0.5, 0.0], [0.0, 0.7, 0.7, 0.0], [0.7, -0.5, 0.5, 0.0], [0., 0., -3.0, 1.0f32]];