The Blackmagic Ultimatte 12 4K is an advanced real‑time compositing processor engineered for Ultra HD broadcast keying, virtual sets and next‑generation graphics integration. Built on the powerful Ultimatte 12 architecture, it introduces new algorithms and refined color science that deliver superior edge detail, high‑accuracy color separation, lifelike color fidelity and dramatically improved spill suppression, even in difficult scenarios involving shadows, fine hair detail or transparent elements. Its high‑performance 12G‑SDI hardware enables sub‑pixel processing for exceptionally sharp Ultra HD images, while automatic format detection allows seamless operation across SD, HD and Ultra HD production pipelines. With integrated frame stores, backgrounds and mattes can be loaded directly into the system, enabling sophisticated fixed‑camera virtual sets without the need for additional external sources. Ultimatte 12 4K offers full compatibility with Ultimatte Software Control and the Ultimatte Smart Remote 4, providing precise creative control over keying, matte refinement and compositing behavior. Designed for studios, broadcast environments, live production and on‑set visualization, the Ultimatte 12 4K delivers high‑end real‑time chroma key performance that empowers creators to place talent into any Ultra HD environment with photorealistic results.