Continuum RefMod Bridge

H3 tops out at maybe 15 seconds of clip. If you want a longer take you're on chunked, multi-shot workflows - and that's where Continuum RefMod Bridge earns its keep. It exists for ComfyUI-H3-Continuum users: it makes sure your RefMod references get injected into every Continuum chunk, not just the first one, and it does it without patching or global state.

The wiring is the whole trick. Connect Load Model → Continuum RefMod Bridge → sampler model, and connect your mods bundle to the bridge. Because the bridge sits in the MODEL path, it runs before sampling each chunk's conditioning is prepared - so a character reference that should persist across all chunks of a long scene actually does.

How it works

Mechanically, the bridge clones your MODEL and attaches a wrapper through ComfyUI's public outer-sampling hook. Before each chunk's conditioning is prepared it injects the prepared ref blocks; on completion, error, or cancellation it restores the previous conditioning. No global bundle, no TTL, no monkey-patching of Continuum code - the README leans on that distinction, and it matters for people who got burned by the older global-state design. Because state belongs to the model branch, different model branches can carry different bundles without stepping on each other.

The inputs mirror Apply H3 RefMod, because it's the same strength/curve vocabulary applied per chunk:

• model - the model clone to arm; wire Load Model in, Continuum Sampler's model out.
• mods - the bundle from a loader or extractor, injected into every chunk while enable is on.
• enable - master switch. Off = pure passthrough; the bridge is removed from the clone.
• retention, curve_direction, curve_shape, curve_value - same semantics as Apply: retention 1.0 = fully_preserved down through 0.15 = weak_reference; the curve is across each mod's own frames, not output time.
• scramble_seed (and optional scramble_mode, scramble_keep) - -1 keeps order; a nonnegative seed shuffles/keeps a subset per run.
• max_total_tokens - budget after copies; 0 disables.

Outputs are the armed model, a mods passthrough, and a status string ("model-scoped bridge active" or "bridge disabled").

Install

ComfyUI Manager (search "ComfyUI-MiniMaxH3Mod") or:

cd ComfyUI/custom_nodes
git clone https://github.com/Luisacaotica/ComfyUI-MiniMaxH3Mod

Restart; deps are light. On top of that you need the ComfyUI-H3-Continuum pack this node extends, real H3 weights, and its VAE in a current ComfyUI - and H3's licence is territory-restricted (US, EU, UK, Korea excluded from local weights).

Common issues

The bridge only helps if your sampler is actually consuming its MODEL output - wire the wrong model path and nothing gets injected, with no error. If a character fades between chunks, check that the bundle survived: mods passes through the node, so trace it. And don't keep an armed bridge around when you've switched to plain sampling - enable=False (or bypassing the MODEL output) removes it from the clone. The old Disarm node is retained only for saved workflows; this bridge's toggle is the supported way to switch it off now.