<h1 id="comfyui-obvpm-timeline">comfyui-obvpm-timeline</h1>A MiniMax H3 ComfyUI workflow and nodes that allow generating, extending, prepending, bridging and editing videos in an easy to use UI.The timeline node is like a mini video editor.And it also supports creating seamless looping videos.<a target="_blank" rel="ugc" href="https://github.com/chanon/comfyui-obvpm-timeline/blob/main/assets/timeline-node.png"><img src="https://github.com/chanon/comfyui-obvpm-timeline/raw/main/assets/timeline-node.png" alt="The Timeline node: three clips on the timeline, with the first one set to be prepended" width="804" /></a><h2 id="updates">Updates</h2><h3 id="0.1.1-003-(2026-09-22)">0.1.1-003 (2026-09-22)</h3><ul><li>Fixed an error some users were getting</li></ul><h2 id="watch-the-tutorial">Watch the Tutorial</h2>The best way to learn how to use the Timeline and workflow is by watching the YouTube tutorial video:<a target="_blank" rel="ugc" href="https://youtu.be/kqP09NfJXaQ"><img src="https://camo.githubusercontent.com/5f6f9e3f5a4d239e1a502d9bfa93ba6fc00d4778348b4d6a0e00e55cb6969613/68747470733a2f2f696d672e796f75747562652e636f6d2f76692f6b715030394e664a5861512f687164656661756c742e6a7067" alt="Watch the tutorial on YouTube" /></a>Watch on YouTube: <a target="_blank" rel="ugc" href="https://youtu.be/kqP09NfJXaQ">https://youtu.be/kqP09NfJXaQ</a><h2 id="features">Features</h2>The main node is the Timeline node: the clips you generate are placed on it, and it is where you arrange, cut and preview them, and pick which clip the next generation continues from.Generate a clip, see if you like it, add it to the timeline, then extend from it. Any part you don't like can be redone later.Every generated clip is saved together with a motion context file (<code>.mctx</code>) that holds its latents. Extensions continue from those original latents using latent masks, not from re-encoded pixels, so there are no lighting changes or flickers at the joins. And because the files sit next to the clips, a clip can still be extended at full quality days or months later.Generating<ul><li>Extend a clip seamlessly.</li><li>Prepend: generate what happens before a clip</li><li>Bridge: generate what happens between the end of one clip and the beginning of another. This lets you redo any section of the video, and bridging onto a fresh generation brings the quality back if it has drifted.</li><li>Loop: bridge the last clip back to the first clip to make a seamless looping video.</li><li>Extend from a cut: if a clip ends badly, cut off the bad part and extend from the good part. Snap cuts keeps cuts on the latent frame grid.</li><li>Clips that have no motion context (external clips, clips from other workflows) can be extended too, with seam improvements applied automatically.</li><li>Result preview: plays each new clip joined to its neighbours and rates how seamless the join is. From there you add it to the timeline, delete it or dismiss it.</li><li>Model preview override: Integrated into the result preview. Lets you quickly see if a generation is going wrong.</li></ul>Timeline<ul><li>Mini Video Editor: Drag in clips from anywhere, reorder them by dragging, trim the ends, cut left / cut right at the playhead, undo cuts, and open gaps.</li><li>Quick preview: plays through the clips right away. Full preview assembles them into a single video file, losslessly where possible. Export saves the finished video.</li><li>Load Settings, Prompts from Clips: restores the prompt, seed, settings and references that a clip was generated with, so you don't have to keep track of them yourself.</li><li>Swap takes: Swap between previous takes generated for the same extension, so you can go back to them and swap between them on the timeline.</li><li>The sequence is also available as text, for copying a timeline into another workflow.</li></ul>Upscaling<ul><li>A latent upscale and refine of the whole sequence in one pass, so details stay consistent across the joins and the result is still seamless.</li><li>Sampling is done in windows, so long or high resolution videos still fit in VRAM.</li><li>Generate at low resolution for fast iteration, then upscale once at the end. This is optional, you can also generate the first pass at final quality.</li><li>Each clip's conditioning is saved with it, so the upscale uses the same references the clip was generated with.</li></ul>Workflow<ul><li>Organized for fast and easy use. All inputs are in one area. No pan all over the workflow to change things.</li><li>Settings Presets: Allows you to save frequently used settings such as steps, turbo, and sampling settings and control them in one place</li><li>Up to four image references, plus video and audio references. (More can be added)</li></ul><h2 id="dependencies">Dependencies</h2>The workflow uses these custom node packs, so install them first (ComfyUI Manager's Install Missing Custom Nodes finds them):<ul><li><a target="_blank" rel="ugc" href="https://github.com/chanon/comfyui-obvpm-timeline">comfyui-obvpm-timeline</a>: Timeline, extend / prepend / bridge / loop generation, and the whole-sequence upscale</li><li><a target="_blank" rel="ugc" href="https://github.com/chanon/comfyui-obvpm">comfyui-obvpm</a>: Bundles, Settings Presets, switches and gates, Load Images &amp; Compose</li><li><a target="_blank" rel="ugc" href="https://github.com/kijai/ComfyUI-KJNodes">ComfyUI-KJNodes</a> — Set / Get nodes, model preview override, Sage attention patch</li><li><a target="_blank" rel="ugc" href="https://github.com/LBH-123-AI/Comfyui_Minimax_h3_latent_Upscaler">Comfyui_Minimax_h3_latent_Upscaler</a>: The latent upscaler used by the upscale pass</li><li><a target="_blank" rel="ugc" href="https://github.com/Larryvrh/ComfyUI-MiniMax-H3-Turbo">ComfyUI-MiniMax-H3-Turbo</a>: Turbo LoRA loader for larryvrh turbo</li><li><a target="_blank" rel="ugc" href="https://github.com/xmarre/ComfyUI-Spectrum-MiniMax-H3">ComfyUI-Spectrum-MiniMax-H3</a>: Spectrum acceleration</li><li><a target="_blank" rel="ugc" href="https://github.com/rgthree/rgthree-comfy">rgthree-comfy</a>: Power Lora Loader</li></ul>

OBVPM Timeline - Motion Context Extend, Prepend, Bridge, Seamless Loops, Latent Upscale Workflow

Fixed error some users are getting.

Files with SHA256: e40039f6da97eb0e391741d7917a1850d0ef8f2e7592dc8db930939ae45a9a9b