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Contents
---
layout: post
title: "noise_mode"
---
### Name ###
`noise_mode` _NB: not currently available in vanilla processing_.
### Examples ###
```ruby
#!/usr/bin/env jruby -w
require 'picrate'
class TestNoise < Processing::App
attr_reader :z
def setup
stroke(255, 64)
@z = 0
end
def draw
noise_scale = 0.01
background(0)
grid(width, height, 10, 10) do |x, y|
arrow(x, y, noise(x * noise_scale, y * noise_scale, z * noise_scale) * TWO_PI * 2)
end
@z += 1
end
def mouse_pressed
mode = NoiseMode::OPEN_SMOOTH # Smooth classic OpenSimplex2
noise_mode mode
sketch_title mode.description
end
def mouse_released
mode = NoiseMode::DEFAULT # Fast classic OpenSimplex2
noise_mode(mode)
sketch_title mode.description
end
def arrow(x, y, ang)
push_matrix()
translate(x, y)
rotate(ang)
line(0, 0, 20, 0)
translate(20, 0)
rotate(PI + 0.4)
line(0, 0, 5, 0)
rotate(-0.8)
line(0, 0, 5, 0)
pop_matrix()
end
def settings
size(600, 400, P2D)
end
end
TestNoise.new
```
### Description ###
Currently supports four implementations of noise:-
1. DEFAULT # fast classic OpenSimplex2
2. OPEN_SMOOTH # smoother class OpenSimplex2F
3. FAST_TERRAIN # more suited to terrain
4. SMOOTH_TERRAIN # as above but smoother
### Syntax ###
```ruby
noise_mode(mode) # default is NoiseMode::DEFAULT, a fast classic OpenSimplex2
```
### Related ###
`noise(x, y, z, w)`
`noise(x, y, z)`
`noise(x, y)`
Version data entries
4 entries across 4 versions & 1 rubygems