Using The Perlin Function

First: using PRL_CIRCLE:

1.	PRL_PURE
	$image\purecircle.gif$
2.	PRL_COMBINE
	$image\circlecombine.gif$
3.	PRL_DIFFERENCE
	$image\circlediff.gif$

Second: using PRL_LINE:

1.	PRL_PURE
	$image\linepure.gif$
2.	PRL_COMBINE
	$image\linecombine.gif$
3.	PRL_DIFFERENCE
	$image\linediff.gif$

Third: using PRL_RANDOM:

1.	PRL_PURE
	$image\randompure.gif$
2.	PRL_COMBINE
	$image\randomcombine.gif$
3.	PRL_DIFFERENCE
	$image\randomdiff.gif$