Code Golf: Playing Cubes

Answer 1

PHP - 447 398

I Know it's not as short as the others here, but I'm happy with it ;)

'|   | |','/__ 
/|',3=>'__');$x=max(max($g),0);$m=$i=min(min($g),0);$row=$y=0;
while($x>=$i){$n=$row++*2;foreach ($c as $w=>$p){
$L[]=str_pad('',count($g)*4," ");$t='';$y=0;foreach ($g as $h)
{if((($h>=$i&&$i>0)||($h<$i&&$i<=0)))$L[$n]=substr_replace($L[$n],$p,4*$y+$w,
strlen($p));$y++;}$n++;}$i++;}array_splice($L,$n);krsort($L);
print implode("\n",$L);?>

Input / Output

   C:\development\code-golf>php cubes1.php 1 2 1 -5 -5 4 3 3
                       __
                     /__ /|
                    |   | |__  __
                    |___|/__ /__ /|
       __           |   |   |   | |
     /__ /|         |___|___|___|/|
   _|   | |__       |   |   |   | |
 /__|___|/__ /|     |___|___|___|/|
|   |   |   | |__  _|   |   |   | |
|___|___|___|/__ /__|___|___|___|/
            |   |   | |
            |___|___|/|
            |   |   | |
            |___|___|/|
            |   |   | |
            |___|___|/|
            |   |   | |
            |___|___|/|
            |   |   | |
            |___|___|/