A 3D block model rotates in a dark WebGL scene, its dimensions adjustable in real time through a dat.GUI control panel. The sketch uses Three.js with a perspective camera and OrbitControls, rendering both wireframe and flat-shaded materials to highlight the box’s edges and surfaces. Animate continuously rebuilds the geometry from parametric width, depth, and height inputs, while the directional and ambient lights define the form. The code does not load external data, relying instead on procedural geometry and interactive user sliders.