$hl = $l / 2.0;
$a = new Vertex(array('x' => $x - $hl, 'y' => $y + $hl, 'z' => $z + $hl, 'color' => $red));
$b = new Vertex(array('x' => $x + $hl, 'y' => $y + $hl, 'z' => $z + $hl, 'color' => $green));
$c = new Vertex(array('x' => $x + $hl, 'y' => $y + $hl, 'z' => $z - $hl, 'color' => $blue));
$d = new Vertex(array('x' => $x - $hl, 'y' => $y + $hl, 'z' => $z - $hl, 'color' => $yellow));
$e = new Vertex(array('x' => $x - $hl, 'y' => $y - $hl, 'z' => $z + $hl, 'color' => $magenta));
$f = new Vertex(array('x' => $x + $hl, 'y' => $y - $hl, 'z' => $z + $hl, 'color' => $cyan));
$g = new Vertex(array('x' => $x + $hl, 'y' => $y - $hl, 'z' => $z - $hl, 'color' => $grey));
$h = new Vertex(array('x' => $x - $hl, 'y' => $y - $hl, 'z' => $z - $hl, 'color' => $white));
return array(new Triangle($a, $c, $b), new Triangle($a, $d, $c), new Triangle($e, $g, $h), new Triangle($e, $f, $g), new Triangle($e, $b, $f), new Triangle($a, $b, $e), new Triangle($d, $g, $c), new Triangle($d, $h, $g), new Triangle($a, $e, $h), new Triangle($a, $h, $d), new Triangle($f, $c, $g), new Triangle($f, $b, $c));
}
$v = new Vector(array('dest' => new Vertex(array('x' => 20.0, 'y' => 20.0, 'z' => 0.0))));
$T = new Matrix(array('preset' => Matrix::TRANSLATION, 'vtc' => $v));
$S = new Matrix(array('preset' => Matrix::SCALE, 'scale' => 10.0));
$RY = new Matrix(array('preset' => Matrix::RY, 'angle' => M_PI_4));
$RX = new Matrix(array('preset' => Matrix::RX, 'angle' => M_PI_4));
$cam = new Camera(array('origin' => new Vertex(array('x' => 15.0, 'y' => 15.0, 'z' => 80.0)), 'orientation' => new Matrix(array('preset' => Matrix::RY, 'angle' => M_PI)), 'width' => 640, 'height' => 480, 'fov' => 60, 'near' => 1.0, 'far' => 100.0));
$renderer = new Render(640, 480, 'pic.png');
$origin = new Vertex(array('x' => 0.0, 'y' => 0.0, 'z' => 0.0));
$origin = $cam->watchVertex($origin);
$repere = makeRepere();
$repere = $S->transformMesh($repere);
$repere = $cam->watchMesh($repere);
$renderer->renderMesh($repere, Render::EDGE);
$renderer->renderVertex($origin);
$cube = makeColoredCube(0.0, 0.0, 0.0, 1.0);
$M = $T->mult($RX)->mult($RY)->mult($S);
$cube = $M->transformMesh($cube);
$cube = $cam->watchMesh($cube);
$renderer->renderMesh($cube, Render::RASTERIZE);
$renderer->develop();