use VRML;
$vrml = new VRML;
$vrml->browser('Netscape+Live3D');
$vrml->at('-15 0 20');
$vrml->cube('5 3 1','yellow');
$vrml->back;
$vrml->print;
OR with the same result
use VRML;
VRML
->browser('Netscape+Live3D')
->at('-15 0 20')->cube('5 3 1','yellow')->back
->print;