DavidColson / FractalPerlin

A simple implementation of Ken Perlin's algorithm, as well as a fractal function that layers the output of the Perlin function. As well as a simple texture generator for XNA

FractalPerlin

A simple implementation of Ken Perlin's algorithm, as well as a fractal function that layers the output of the Perlin function.

I've also included a simple texture generator based on XNA that demonstrates the use of the Perlin function. Here's an example usage of the TextureGenerator. It will generate a texture with a cool black-blue-yellow gradient

TextureGenerator gen = new TextureGenerator (8);
gen.frequency = 4f;
gen.octaves = 10;
gen.resolution = 512;
gen.bIsColored = true;
Color[] gradient = { 
	new Color (0f, 0f, 0f), new Color(0, 0, 0), new Color(0, 0, 0),
	new Color (0f, 0, 0f), new Color(0.4f, 0.4f, 1f), new Color(1f, 1f, 0f),
	new Color(1f, 1f, 0f), new Color(1f, 1f, 1f)};
gen.gradient = gradient;
PerlinTexture = new Texture2D (graphics.GraphicsDevice, 512, 512, false, SurfaceFormat.Color);
PerlinTexture.SetData (gen.GenerateTexture());

I've made sure the the actual Noise file has no dependencies on XNA so you can just drop it in a project and use the perlin functions with as much ease as possible.

I've also made an effort to comment the perlin functions as best I can, they can be hard to understand. I may do a write up explaining how it works, but for now it's fine. If you're unsure of exactly how the function works, what "lattice points" are and other things, read this, it's a pretty good explanation: LINK