A basic geometric visualization

For our first visualization, we'll create a basic equalizer wave graphic. It'll be a rectangular block consisting of a series of cubes that are scaled according to the audio waveform data. We'll use the built-in Cube component already in the RenderBox library and its basic vertex color lighting material.

In the visualizations/ folder, create a new Java class named GeometricVisualization and begin as follows:

public class GeometricVisualization extends Visualization {
    static final String TAG = "GeometricVisualization";
    public GeometricVisualization(VisualizerBox visualizerBox) {
        super(visualizerBox);
    }
}

At the top of the class, declare a Transform array of cube transforms and the corresponding array for RenderObjects:

    Transform[] cubes;
    Cube[] cubeRenderers;

Then, initialize them in the setup method. We'll allocate the array of cubes, aligned and scaled as an adjacent set of blocks, creating a 3D representation...