Perlin Noise
Many people have used random number generators in their programs to create unpredictability, make the motion and behavior of objects appear more natural, or generate textures. Random number generators certainly have their uses, but at times their output can be too harsh to appear natural. This article will present a function which has a very wide range of uses, more than I can think of, but bas
Wu Anti-aliased Lines
Your average Breshenham line drawing algorithm draws lines quickly, but not that nicely. Your average integer line renderer produces nasty jaggedy lines that can only be drawn between integer coordinates. I saw a nice anti-aliased line drawer in one of Michael Abrash's books, and decided to improve it to handle non-integer coordinates. A wu-line is not only better looking than a normal line, it
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