3D product rendering in Unreal Engine involves the creation of realistic, three-dimensional representations of products, leveraging advanced graphics capabilities to showcase intricate details, textures, and lighting effects. This process is crucial for industries such as product design, marketing, and e-commerce, where visual fidelity and accuracy are paramount. Through real-time rendering techniques, Unreal Engine allows for dynamic adjustments and interactive viewing of products, enhancing customer engagement and decision-making processes.