Instruction Following
Measures how accurately and completely the video follows the text prompt, including requested subjects, attributes, actions, scene, style, camera/viewpoint, and temporal event order.
Perceptual Quality
Measures the perceptual and technical quality of the rendered video, including resolution, overall and local clarity, sharpness or blurriness, brightness and color stability, flicker, compression artifacts, and low-level visual distortions that affect the viewing experience.
World Coherence
Measures whether the video contains any violations of everyday knowledge, common sense, or basic physical laws, including temporal inconsistencies, unnatural or incoherent motion, physically implausible interactions, and structural abnormalities or deformities in objects or characters.