AI can't do activewear. Seams drift, fabric floats, bodies bend the wrong way. So we built one set — TAUT, a fictional bone-white rib-knit label — photographed one athlete in it against one red wall, and attached that single frame to every call after it. Then we pushed: an extreme body crop, a 100mm macro of the rib and the seam, a frozen leap, the moment after. The fabric frame is the one that gives it away. If the rib doesn't cast its own shadow, it isn't fabric. Comment TAUT for the six scene prompts and the set lock. Render Department — Issue 08. AI-generated concept imagery. TAUT is a fictional label. Typography and compositing in Remotion.