In this tutorial we start by setting up the base geometry that will become our reactive shape. First, we build the 3D foundation, then use instancing to multiply this geometry across space, thinking carefully about how each copy should relate to the whole. Once the base is ready, we bring in audio analysis, extracting the beat and amplitude from the music, and use them to drive scale, rotation, and color in real time. From there, we work on composition, layer in subtle movement so each pulse feels alive, and finish with post-processing to polish the look. By reacting to every beat, we turn a single static shape into a layered, music-driven visual system.
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