Seamless Product Orbit Loop (Runway Gen-4)

[Use with a clean product still — centered product, plain background — in Runway Gen-4 image-to-video] The camera orbits the product slowly and smoothly clockwise at a constant speed and constant height, completing a small arc. The product stays perfectly centered and static. Light sweeps gradually across its surface as the angle changes. The background stays clean and unchanged. Loop production method: - Feed a proper product still (your hero e-commerce shot works). The prompt handles ONLY the move — describing the product itself in text reduces the motion and can mutate the design. Your still is the spec sheet; protect it. - "Constant speed, constant height" is the anti-wobble incantation: orbit drift (rising, speeding up) is the most common failure and this phrasing suppresses most of it. - Small arc beats full circle: a 20–40 degree drift reads premium and loops far more cleanly. Full 360s warp the far side of products the model has to hallucinate. - To make the loop seamless: generate, then reverse the clip and append it (A → reversed A). Palindrome loops hide the start/end mismatch that ping-pongs distract from; a light crossfade at the joins finishes it. - The "light sweeps across" line is what sells materiality — glass, brushed metal, and matte surfaces each catch the sweep differently and it reads as a real turntable studio. - Keep backgrounds plain in the source still; busy backgrounds shimmer with artifacts the moment the camera moves.