[Legacy] H3 Continuum Advanced V3

H3 Continuum Advanced V3 is a companion node, not a sampler: it collects the continuation, session, reroll, and diagnostics settings for the V3 sampler into one bundle so the sampler itself doesn't sprout twenty widgets. You wire its single advanced output into H3 Continuum Sampler V3's advanced input. If you're on the V3.3 or V3.2.4 samplers, those folded these settings back into the node directly and you don't need this one at all - which is why it carries the "[Legacy]" tag.

Its job is exactly what its description says: "Optional continuation, session, reroll, and diagnostics settings for V3." The settings it owns:

• audio_continuity (true) - carry the previous raw audio latent into continuation chunks.
• reroll_from_chunk (0) - 0 reuses every matching accepted chunk from the optional session; N preserves chunks before N and regenerates N onward.
• reroll_nonce (0) - change this to derive new seeds for regenerated chunks only.
• strict_compatibility (true) - proactive native-H3 API checks; marked Continuum payload failures always stop, never silently bypass.
• diagnostics (Basic) - report verbosity only; it never changes generation or seam correction.
• debug (false) and show_preview (true).

It also has optional last_frame, session, initial_state, and prompt_plan inputs that pass through to the sampler's continuation logic.

In practice you can treat most of these as "leave them alone." reroll_from_chunk is the one you'll actually touch: set it to 2 and the sampler regenerates chunks 2 onward while reusing chunk 1 from the saved session - the classic "I liked the opening, hated the ending" workflow. Everything else sits at sane defaults.

Install

cd ComfyUI/custom_nodes
git clone https://github.com/ukr8b3g-cmyk/ComfyUI-H3-Continuum.git

or via ComfyUI Manager ("H3 Continuum"), then restart. No extra pip packages.

The honest advice: only reach for this node when you're maintaining a V3-era workflow or deliberately want the sampler UI minimal. New work should use H3 Continuum Sampler V3.3, where audio_continuity, reroll, and diagnostics are native widgets - no extra node, no advanced wire, and Run Storage handles resume automatically. This node is the "why is my workflow full of one-output bundle nodes?" answer from the pack's middle era.