I built a code-rendered previs of a three-sided hologram video on a placeholder band. Four performers are jointed figures (head, torso, pelvis, upper and lower arms, hands, legs, feet) posed by inverse kinematics from one 8-bar score at 120 BPM: sticks arc into the ride, snare, crash and a bar-8 tom fill while the foot works the kick; the guitarist strums eighths and slides between chords; the bassist plucks and walks roots; the singer leans into the mic and belts. Heads nod behind the beat, hair and cymbals follow through. Three cameras 120° apart are composited on a black 1080×1080 canvas in 394 px views clear of a 70 px center gap. Amps and truss corners sit between the cameras, and an ID render shows every performer at least 61% visible in every view. The 384-frame, 16 s loop closes on itself; 0.0% of rendered frames repeat the one before and 0 lit pixels fall outside the views.