Renders a scene to video.webm (VP9 and Opus), video.wav (its sound) and video.vtt (when it has subtitles); with preview (the default) also video.contact.png, twelve moments on one sheet, and video.preview.gif, 480 pixels wide. A scene can hold: drawn pictures with groups (a character's parts move, turn and fade together) and mirror x, y or both on any layer or group, layer and track blends (multiply for a shadow, a vignette or a night grade; screen and add for a glow or a flare, on a layer or a track alike), closed paths filled nonzero (the default) or evenodd (a self-overlapping star leaves its centre bare);characters who talk (cast, timed lines with their own reading, ducked music, subtitles made from the lines, a mouth that moves on the words, or swaps between closed, open, wide and round drawings (with an idle breath and a listening beat, as a moving mouth has), and eyes that blink); shots with people on paths, action beats (guard, strike, hit, fall, get-up) and gestures on cue (a wave, a point, a nod), a directed character (a figure by seed, dressed by its look, standing in a named gait from the schema, speaking through its cast name, set among forms, props and a ground, filmed by a dolly or an orbit), animals and forms, and a camera that follows, orbits or cranes; music cues with a melody, a lead instrument, tempo changes and fades, that duck under lines and under any sound marked ducks_music; and sounds that move across the ears. Its files together are at most 50 MB, so a long, busy scene renders with preview false. At most 60 seconds, 1920 by 1080 either way up and 30 frames a second. The price is read off the engine's own cost report: units = design renders x megapixels / 45 + frames x megapixels / 200 + shot frames x megapixels / 1.6 + 3 a shot clip, rounded up; at most 600 a job, and video_cost says it first. It runs as a queued job: the answer is 202 with a job id at once, and GET /api/agents/jobs/ (or the MCP tool job) says when it is done and signs its files. A queued call is refused on the free plan with 402: its units buy only calls that answer at once, and queued jobs need a paid plan (a pass or the card plan). Each account may have 4 queued jobs waiting or running (1 running at a time), and may submit 20 videos and 10 minutes of video a day (UTC).