This ComfyUI tutorial shows how to turn a single still image into a native 4K video using Seedance 2.0’s reference-to-video method. The workflow is intentionally minimal: LoadImage brings in your reference frame, ByteDance2ReferenceNode (the Seedance 2.0 reference model) synthesizes temporally consistent motion while preserving the look of the source, and SaveVideo encodes the generated frames into a 4K file. The result is a reference-faithful clip with clean, fine detail that’s suitable for editorial finishing and downstream color work.

Technically, the ByteDance2ReferenceNode conditions its generative video on the appearance of the input image and drives motion from learned priors, with user-adjustable parameters like output resolution, frame count, frame rate, seed, and motion/strength controls (names may vary by build). Set the node to 3840x2160 to produce true UHD frames, choose a frame count and FPS for duration, and keep a fixed seed for repeatability. SaveVideo then assembles the frames; when configured with a 10‑bit-capable encoder and pixel format, it exports in 10‑bit color, which helps maintain subtle gradients and grading latitude. If a 10‑bit encoder or pixel format isn’t available, the node will export in standard 8‑bit.