# spatial-noise

Spatially deterministic noise generators

``npm install spatial-noise``

# spatial-noise

Spatially determinisitc n-dimensional noise generators. Useful for things like games, procedural generation and quick testing of numerical algorithms.

Try it yourself in your browser.

## Install

``````npm install spatial-noise
``````

## Example

``````var sn = require("spatial-noise")

//Generate noise values on a grid
for(var i=0; i<10; ++i) {
for(var j=0; j<10; ++j) {
console.log(i, j, "->", sn(i, j))
}
}

//Optimized methods are available for up to 4 dimensions
var t = sn.noise4d(10.01, 0.5, 10.0, Date.now())

//You can also use floating point precision, which is slightly faster
var s = sn.noise2f(5, 6)
``````

## API

``````var sn = require("spatial-noise")
``````

### Double Precision

• `sn.noise1d(x)`
• `sn.noise2d(x,y)`
• `sn.noise3d(x,y,z)`
• `sn.noise4d(x,y,z,t)`
• `sn.noiseNd( ... )`

Generates a spatially varying noise function in some fixed dimension taking doubles as arguments.

Note `require("spatial-noise")` is an alias for `sn.noiseNd( ... )` and takes a variable number of arguments.

### Float Precision

• `sn.noise1f(x)`
• `sn.noise2f(x,y)`
• `sn.noise3f(x,y,z)`
• `sn.noise4f(x,y,z,t)`
• `sn.noiseNf( ... )`

Same deal as above, except arguments are all 32 bit floats instead of 64 bit doubles.

# Credits

(c) 2013 Mikola Lysenko. MIT License

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