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AS3 Convert DisplayObject to Black and White

/ Published in: ActionScript 3
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This handy little function can be used to convert a displayObject to black and white.

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  1. // import flash.filters.ColorMatrixFilter;
  2.  
  3. function blackAndWhite($target:DisplayObject, $enabled:Boolean):void
  4. {
  5. 	var rc:Number = 1/3;
  6. 	var gc:Number = 1/3;
  7. 	var bc:Number = 1/3;
  8. 	var cmf:ColorMatrixFilter = new ColorMatrixFilter([rc, gc, bc, 0, 0, rc, gc, bc, 0, 0, rc, gc, bc, 0, 0, 0, 0, 0, 1, 0]);
  9.  
  10. 	if ($enabled) {
  11. 		$target.filters = [cmf];
  12. 	} else {
  13. 		$target.filters = [];
  14. 	}
  15. }
  16.  
  17. blackAndWhite(myMovieClip, true);

URL: http://chargedweb.com/labs/2010/03/18/fast-blacknwhite-trick/

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