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When inside a Billboard node, objects rotate automatically around
their axis of rotation in order to face the user.
In the exemple, the trees are only a square with a
tree texture, but given you see only the front of it, it
looks like it has a depth.
But you could use it for example for an arrow showing
the North Pole, or inner-scene 2D advertisements banners
in a 3D environment.
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$DirUrl= dirname('http://'. getenv('HTTP_HOST') . getenv('SCRIPT_NAME')) .'/' ;
$DirBase_root=getenv('HTTP_REFERER');
$DirBase = strtok($DirBase_root, '/');
$DirBase=$DirBase.'//'.strtok('/');
//$DirBase=$DirBase.strtok('/');
//print($DirUrl);
?>
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Click on the ground for creating
new trees.
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