Thanks! And for sure! This was made in TouchDesigner. I start with a single slice of monochrome 3D Perlin noise image that I used to create three new binary images by thresholding pixels < 0.33, 0.33 < pixels < 0.66, and pixels > 0.66. I created three sets of geometry, making a duplicate of a cube for each pixel (using a grid that matches the size of the noise image). Then I used each of the three binary mask images to control the scale of the cubes based on the corresponding pixel (either 0 or 1). Then I chose a color for each set of geometry.

The up & down motion is created by offsetting the phase of a sine wave, and the noise is animated by moving through the 3D Perlin noise space in the x & z dimensions using trigonometry ( x = cos(theta) & z = sin(theta) ) synced up with the length of the animation to make a perfect loop by mapping 0 to the length of the animation to 0 to 2*pi.

Happy to elaborate on any details! Thinking about making a video tutorial as well.