T8 Creative DNA Mixer（案例机制融合）

The T8 pack ships with a library of 213 curated "unofficial case templates" - real published video examples distilled down to their mechanisms: the structure, the camera grammar, the payoff. T8 Creative DNA Mixer（案例机制融合） is the node that lets you splice three of those mechanisms onto your own idea. And it does it entirely locally, with no LLM call and no media ever leaving your machine.

The pitch is one of the smartest in the suite: instead of "make something like this viral ad," you pick what you're borrowing from whom. One case contributes its structure, another its camera work, a third its climax/ending - and the node writes a creative_dna_instruction string that tells downstream nodes to transfer only those causal mechanics. The built-in anti-copy clause is explicit: never copy source people, objects, setting, story, dialogue, wording, shot list, surface style, GIF, source video, or preview media. That boundary is why it's legally and ethically comfortable to use - the case library's own entry notes stress that only the mechanism is reusable, never the content.

The inputs

• instance_intent (required) - your actual creative content. This is authoritative; the mechanisms are grafted onto it, not the other way around.
• structure_case, camera_case, payoff_case - three dropdowns, each listing the unofficial case selectors (the same 213 T8 cases plus the community skills the enhancers use). Each dropdown is one role: structure, camera, or payoff. All default to "无" (none).
• model_target - H3, Seedance 2.0, or both. The node emits model-specific guidance for whichever you pick.

You must select at least one case, and the same case can't serve two roles at once - the source rejects that as an error rather than letting one template quietly double up.

What comes out

• creative_dna_mix - the typed T8_CREATIVE_DNA_MIX socket, which feeds T8 Creative Context Assembler.
• creative_dna_instruction - a plain-text instruction block you can read, tweak, or paste. This is the practical output.
• creative_dna_json - the structured payload.

From the Assembler, your three borrowed mechanisms ride along into the existing H3/Seedance enhancer's reference context - so a whole pipeline can benefit from the case study without any of the case's media being uploaded.

Installing

Part of the comfyui-minimax-h3-prompt-enhancer-T8 pack. ComfyUI Manager: search "MiniMax H3 / Seedance 2.0 / Music 3 Prompt Enhancer (T8)", or:

cd ComfyUI/custom_nodes
git clone https://github.com/T8mars/comfyui-minimax-h3-prompt-enhancer-T8

Restart ComfyUI, Ctrl+F5 the browser. This node is pure local - no API key, no new dependencies.

Where it fits

Realistic use: run it once per project, right after the Director sets your brief. The combo that works is Director → DNA Mixer → Context Assembler → your existing enhancer, so your locked identity comes from the brief and the storytelling energy comes from the cases. One honest caveat: the case selectors are named in Chinese with the pack's own taxonomy ("产品广告｜功能证据递进", "雨夜追逐｜街巷近战到机车脱身", and friends), so there's a bit of a learning curve if you can't read the labels - but the GIF previews in the node's dropdown help a lot. Don't over-stack: three mechanisms is the ceiling, and two well-chosen ones usually beat three that fight each other.