L3D Cube Perlin/simplex noise
I used the FastLED Perlin/simplex noise generator plus the color palette lookup function and combined it with my accelerometer demo code (layer animation) to build a 3D noise demo.
Basically the code generates noise into one of the layers (8x8) and then copies it to the next layer and repeats so that the layers are noise over time. The code is written to allow you to animate in either direction on any axis (X, Y or Z). The video is using the Y axis and filling from the back to the front. The code allows you to change various parameters such as the speed of the animation and the scale (zoom) as well as the palette. The demo video is using the built-in lava colors palette.
Running on an Arduino Mega
Code: http://pastebin.com/BtV4mkbA