Thresholds and Perlin Noise in Actionscript 3 - isometric rotating height map

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Height map created in Actionscript 3, using Perlin Noise to create the base image,
BitmapData.threshold to separate the layers, and matrix functionality to rotate the resulting image.
Click your browser's refresh button in order to see a new height map.

Created by John Winkelman, ("Tesseract") for a contest at GameDev.net