<h2 id="support">Support</h2>Everything here is free and stays free — the format spec, the nodes, the workflows, the cartridges, the LoRAs. If it saved you a night of debugging (it contains several hundred of mine), tips keep the 5090 warm:<ul><li>☕ <a target="_blank" rel="ugc" href="https://ko-fi.com/joeygambino">Buy me a coffee on Ko-fi</a></li><li>💛 <a target="_blank" rel="ugc" href="https://github.com/sponsors/jlucasmcrell">Sponsor on GitHub</a></li><li>🔁 <a target="_blank" rel="ugc" href="https://liberapay.com/joeygambino">Liberapay</a> (recurring)</li><li>⚡ Or right here: the Civitai tip button on this page sends Buzz directly.</li></ul><h2 id="type-a-story.-get-one-continuous-video-with-sound.-multi-shot-scenes-render-as-a-single-take-no-last-frame-chaining-no-quality-loss-from-shot-to-shot.-that's-the-whole-pitch.">Type a story. Get one continuous video, with sound. Multi-shot scenes render as a single take - no last-frame chaining, no quality loss from shot to shot. That's the whole pitch.</h2>Both workflows now read left to right: numbered lanes, and you only ever touch lanes 2-4. Everything below the main row is optional.<h2 id="what-you-need">What you need</h2><ul><li>ComfyUI + this node pack (Manager: MiniMax-H3 Multishot, or the zip on this version).</li><li>A MiniMax-H3 checkpoint (links on this page). 24 GB card? Take a GGUF.</li></ul><h2 id="seamless-chain-multi-shot-scenes-as-one-take">SEAMLESS CHAIN - multi-shot scenes as one take</h2>Lane by lane:<ul><li>README - the quick start lives on the canvas itself.</li><li>1 - MODELS - pick your H3 checkpoint and text encoder. VAEs are preset; LoRA slots are empty until you fill one.</li><li>2 - ANCHORS (optional) - a photo to open shot 1 on (enable its gate), and a short voice clip to lock the speaker's voice.</li><li>3 - YOUR PROMPTS - type your idea in the box, or point the switch at a prompt file. The writer expands it into shot prompts. Writing your own? Set the writer to <code>passthrough (raw JSON, skip LLM)</code> and paste shots separated by <code>---</code> lines.</li><li>4 - CONTROLS - size, frames per shot, steps, and <code>take_seconds</code> (total length; 30 is a good first run). The switches stay off unless you installed the pack a switch names.</li><li>5 - ENGINE - nothing to change. The remote encoder lives here if you want the text encoder on a second PC: enter its address, flip the encoder switch, free ~15 GB.</li><li>6 - OUTPUT - your video and its audio save here.</li></ul>Optional panels below the main row: reference images (your character, ref2va checkpoints - folder per character + AUTO REFS on), V2V reference (a clip whose look guides the render), FFLF plates (flf_chain mode only), audio spine (a soundtrack the take follows).<h2 id="extend-take-one-person-talking-as-long-as-you-want">EXTEND TAKE - one person talking, as long as you want</h2>Same lanes, different job: one premise becomes ONE continuous speech cut across windows.<ul><li>1 - MODELS - same as above.</li><li>2 - ANCHORS - a photo of your speaker (shot 1 opens on them) and a voice clip. More useful here than anywhere: one person carries the whole take.</li><li>3 - YOUR PROMPT - ONE premise, one speaker. The writer writes the whole speech. num_shots 0 = it decides. Passthrough works here too.</li><li>4 - CONTROLS - <code>take_seconds</code> is the star: 30 ships, 60 clears TikTok's minute. <code>window</code> stays on auto - it sizes itself to your card.</li><li>5 - ENGINE / 6 - OUTPUT - same as above.</li></ul>Keep takes to about 4 windows for now - very long takes slowly sharpen.<h2 id="rules-of-thumb-(both-workflows)">Rules of thumb (both workflows)</h2><ul><li>Spoken lines: 8-12 words per shot. Short lines sync; long lines garble.</li><li>Say the sounds you want ("rain on the roof, a fridge hum") or it invents its own.</li><li>Keep your character's face in frame - faces carry identity between shots.</li></ul><h2 id="if-something-breaks">If something breaks</h2><ul><li>Red node? Update the pack in Manager, restart, reload the workflow from disk.</li><li>Render crawls at low wattage? Lower resolution or frames per shot, or use the remote encoder.</li><li>Only one of the two workflows shows in your sidebar? Fixed in 2.6.5 - re-download both.</li><li>Still stuck: comment with your console log. I answer.</li></ul>Deep dives: the two articles linked on this page. Every lane also has a short note on the canvas. Detailed guide for people that can read good: <a target="_blank" rel="ugc" href="https://civarchive.com/articles/34046/every-setting-explained-the-seamless-chain-deep-manual">Every setting explained: the Seamless Chain deep manual | Civitai</a>

MiniMax-H3 Multishot — Seamless Chain: multi-shot scenes that render as one continuous take (picture + audio)

2.7.0 — per-subject voices, flf_chain fixed, chain leveller, ComfyUI 0.34. Update by replacing both node folders with the ones in this zip; saved workflows load unchanged (every new widget is appended last).<ul><li>Per-subject voice refs. <code>voice_ref_2</code> / <code>voice_ref_3</code> on both samplers. Each character keeps their own voice across a chained scene instead of blending into one narrator — verified blind across a full chain, no cross-speaker bleed. This was the most-asked request on this page.</li><li>flf_chain fix — boundary plates no longer haunted by PLATE0. With <code>continuity=flf_chain</code> the memory bank still ran, and its default (<code>bank_pinned=1</code>) pinned a reference clip of shot 1 into every later shot. Shot 1 opens on plate 0, and in flf mode those bank clips are not named in the prompt — so the model treated shot-1 footage as content and mixed PLATE0 back in from shot 2 onward. The bank now stands down automatically in flf_chain and prints a console line saying so. If you hit this on 2.6.x: set <code>bank_pinned</code> to 0 as a workaround, or update.</li><li>H3ChainNormalize. New post-chain node: levels the slow texture/colour ratchet across long chains in one pass. Run it after the chain; the known 2.6.0 long-take limit is addressed.</li><li>refresh_pin splice alignment. The re-encoded tail was landing 1–2 latent frames early, so joins read as cuts and audio slipped. The splice is now correlation-aligned.</li><li>x0 texture clamp dial. <code>x0_clamp_window</code> exposed (appended last), dose capped at 0.30. The default is the eye-calibrated setting.</li><li>Memory-sampler levers. In-loop latent x2 / x1.5 upscale, <code>refresh_renoise</code> (variance-matched splice), <code>pin_noise_ramp</code> (graded seam floor), <code>auto_chunk_ffn</code> (picks FFN chunking automatically when VRAM is tight).</li><li>ComfyUI 0.34 supported. 0.34 places interior keyframe anchors natively; the pack probes the running core and stands its own layout patch down when it isn't needed. Older cores keep the patch exactly as before.</li><li>Engine-aware writer. The bundled prompt writer now carries separate H3 and LTX system prompts for every mode, selected by a new <code>engine</code> widget (appended last). H3 prompts use the native <code>&lt;d&gt;[English] ...&lt;/d&gt;</code> spoken-line tag; LTX prompts keep straight-quoted dialogue for the TTS extractor.</li><li>Small stuff: <code>beat_seconds</code> range extended to 20 s on the take controls; a batch of small correctness fixes across both samplers.</li></ul>Zip contents: both node packs, three workflows (Seamless Chain, Extend Take, Keyframes), INSTALL / SETTINGS / PROMPTING guides, example script. Code first as always: GitHub tag <code>v2.7.0</code>, mirrored on HuggingFace.

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