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# Mega Prompt Generator Node The Mega Prompt Generator is a sophisticated ComfyUI node that generates detailed, thematic prompts for image generation. It supports multiple themes and styles with extensive customization options. ![Showcase](https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/82d13074-b383-49ab-a19f-5633c8c109a5/original=true,quality=90/Batman_v3.jpeg) [Source](https://civitai.com/user/Isulion/images?sort=Newest) ## Installation **ComfyUI Manager (recommended):** open the **Custom Nodes Manager**, search for **Isulion** and install. **Manual install:** ```bash cd your_ComfyUI_install_dir/custom_nodes git clone https://github.com/Isulion/ComfyUI_Isulion ``` Restart ComfyUI, then refresh the browser page. The only extra Python dependency is `requests` (see `requirements.txt`); everything else comes with ComfyUI. -------------- ## Interactive nodes These two nodes draw their own interface inside the node (their frontend lives in `web/`). ### 🕹️ Isulion Mega Prompt V4 — "Prompt Jackpot" A slot machine that writes your prompt. Five reels each draw one part of the prompt from the Isulion themes, and the node has a single output: `prompt`.

Mega Prompt V4 slot machine spinning its reels Mega Prompt V4 at rest, showing a coloured prompt and the last draws

**How to use it** 1. Add **🕹️ Isulion Mega Prompt V4** (category `Isulion/Core`) and connect `prompt` to your text encoder (e.g. `CLIPTextEncode`). 2. Pull the **PULL** lever to preview draws in the browser, without running the workflow. 3. Queue the workflow: the machine spins again on every run, and the screen shows exactly the prompt that was sent. | Control | What it does | |---|---| | **Reels** | THEME (◀ ▶ to browse, 🔍 to search the 109 themes), SUBJECT, PLACE, STYLE, EFFECTS | | 🔒 **Lock** | A locked reel never moves, neither with the lever nor when the workflow runs. Picking a theme locks it; leave it unlocked for a random theme each time. | | ✏️ **Your own text** | On SUBJECT and PLACE: your text stays on every draw and the theme rebuilds the wording around it. ✕ clears it. | | 👁 / 🚫 **On / off** | PLACE, STYLE and EFFECTS can be switched off: they turn grey and leave the prompt. | | **SIMPLE / DETAILED / COMPLEX** | From no quality boilerplate, to a few detail words, to a richer block (composition, textures, lighting). | | **LoRA** | Fixed text always added at the end, e.g. a trigger word or ``. | | **PROMPT screen** | Each reel has its colour. Click a piece to re-draw only that reel. **COPY** copies the prompt; **EDIT** freezes a hand-written prompt, sent as-is on every run until you pull the lever again. | | **Last draws** | The last 5 draws. Click one to load it back; ☆ keeps it as a favourite, on top of the list. The footer shows the draw counter and the seed. | | **?** | Built-in help in English or French; the language you choose is remembered. | The machine state (theme, locks, your texts, complexity, LoRA) is saved with the workflow. **Mega Prompt V3 is still available, unchanged**, for existing workflows. ### 👾 Isulion Space Invaders A small Space Invaders game you play inside the node, for while the queue runs.

Space Invaders game running inside a ComfyUI node

- Click the game to give it focus, then **Enter** or **Space** to start (**Enter** to play again after a game over). - **← →** or **A D** to move, **Space** to fire, **P** to pause. The game pauses when it loses focus and only reads the keyboard while it has focus, so ComfyUI shortcuts keep working. - Outputs: `high_score` (INT), `last_score` (INT) and `summary` (STRING). Scores are saved with the workflow, so your best score can feed a seed or a prompt. -------------- ## Prompt generators ### 🚀 Isulion Mega Prompt V3 The classic generator: pick a theme and a complexity, and it builds a detailed prompt. Unlike V4, it also exposes each part on its own output (`prompt`, `subject`, `environment`, `style`, `effects`, `seed`). **Inputs** - **Theme**: one of the 109 themes, or 🎲 Dynamic Random - **Complexity**: simple, detailed or complex - **Randomization**: enable or disable random generation - **Custom subject / custom location**: force your own subject or place, and let the theme describe the rest - **include environment / style / effects**: leave any part out of the prompt ![Custom Subject and location example](https://github.com/user-attachments/assets/10e6a34d-b509-48e7-bac5-7a8c78615371) **🔄 Isulion Multiple Prompt Generator** produces one prompt per theme in a single run: tick the themes you want (or use a selection mode) and it outputs a list of prompts with their theme names.

All 109 themes, by category

#### 1. Art Styles & Techniques - 🎨 Abstract - 🎨 Concept Art - 🖍️ Crayon Art - 🖼️ Digital Art - 🔬 Experimental Art - 🧊 Glassmorphism - 🎨 Impressionist - 🎈 Inflatable World - 🧶 Knitted World - 🧊 Liquid Chrome - ⬜ Minimalist - 🏺 Clay Art - ✂️ Papercraft - 🎨 Watercolor - 🪩 Y2K Retro-Futurism #### 2. Animation & Entertainment - 📺 Animation Cartoon - 🎌 Anime - 🎬 Cinema Studio - 📚 Comic Book - 🎡 Disney - 🎬 Dreamworks - 🐱 Giant Cat-zilla - 🍃 Ghibli - 🎯 Logo - 📺 Manga Panel - 🦸 Marvel - 🎬 Nolan Epic - 👾 16-Bit Pixel Art - 💫 Pixar - 📚 School Manga - 🎭 Stop Motion - 🕹️ Voxel Low-Poly #### 3. Science Fiction & Fantasy - 🧬 Bio-Organic Technology - 🪼 Bioluminescent Jelly - 🌧️ Cinematic Neon Rain - 💎 Crystalpunk - 👟 Cyber Hypebeast - 🌆 Cyberpunk - ✨ Enchanted Fantasy - ⚔️ Fantasy - ⚔️ Futuristic Battlefield - 🌆 Futuristic City - 🌆 Futuristic City Metropolis - 🚀 Futuristic Sci-Fi - ⚔️ Miura Dark Fantasy - 🍄 Psychedelic Cyber Fungus - 🚀 Sci-Fi - 🚀 Star Wars - ⚙️ Steampunk - 🌊 Underwater Civilization - 🩻 X-Ray Anatomy #### 4. Character Art - 😄 Caricature - 👤 Character Designer - 🦄 Chimera Animals - 🐰 Chimera Cute Animals #### 5. Architectural & Spaces - 🏛️ Architectural - 🏠 Interior Spaces - 🏙️ Urban Tag - 🏠 Village World #### 6. Dark & Horror - 👻 Halloween Ethereal - 👻 Horror - ⚔️ Miura Dark Fantasy - 📹 VHS Found Footage #### 7. Holiday Themes - 🏮 Chinese New Year - 🎄 Christmas - 👹 Dia de los Muertos - 🐰 Easter - 🎃 Halloween - 👻 Halloween Ethereal - 🎆 New Year's Eve - 🍀 St. Patrick's Day - 🦃 Thanksgiving - 💘 Valentine's Day #### 8. Nature & Environment - 🌌 Astrophotography - 🌿 Nature - 🌿 Overgrown Ruins - 🌊 Underwater Civilization #### 9. Photography & Fashion - 🎬 Analog 35mm Film - 👗 Curvy Fashion - 📸 Essential Realistic - 📱 Fisheye Action Cam - 📱 Instagram - 📱 Instagram Lifestyle - 📱 Selfie #### 10. Food - 🍳 Culinary/Food - 🍕 Food Apocalypse - 🥙 Street Food Kebab #### 11. Vintage & Historical - 🧺 50s Commercial - 🪩 Disco Medieval - 🕰️ Essential Vintage - 🏛️ Historical Monuments - 🕴️ Peaky Blinders - 🛒 Retro Vaporwave Mall - 👴 Vintage Anthropomorphic - 📸 Vintage 1800s Photography #### 12. Surreal & Dreams - 🖼️ Binet Surreal - 💠 Dimension 3D - ✨ Ethereal Dreams - 🌌 Glitch Core - 🛋️ IKEA Backrooms - 🔬 Microscopic - 🧩 Puzzle Dimension - 🦆 Rubber Duck Supremacy - 💗 Spectral Mist - 📦 Unboxing Surrealism #### 13. Post-Apocalyptic - 🌪️ Post Apocalyptic #### 14. Random - 🎲 Dynamic Random #### Bonus Themes - 🧸 Starter Pack - 🚀 Space Colony - 🏝️ Tropical Paradise - 👧 Skinny Blonde Girl - ⚔️ Medieval - 🏛️ Spartan 300

Want to add your own theme? See the [Theme Creation Guide](Docs/Theme_Creation_Guide.md). -------------- ## All nodes | Category | Nodes | |---|---| | **Interactive** | 🕹️ Isulion Mega Prompt V4 · 👾 Isulion Space Invaders | | **Prompt generators** | 🚀 Isulion Mega Prompt V3 · 🔄 Isulion Multiple Prompt Generator · 🎥 Isulion Video Prompt Generator (camera angle, lighting, quality presets for video models) | | **Animals** | 🦁 Animal Selector · 🐰 Cute Animal Selector · 🦊 Animal Behavior Generator (actions and poses) | | **Scene** | 🌳 Habitat Generator · 🌤️ Weather Generator · 🌅 Time of Day Generator · 🖼️ Art Style Generator · ⚡ Action Generator · 🎬 Scene Composition (camera angles, shot types) | | **Character** | 👨‍💼 Profession Generator · 🧝‍♂️ Fantasy Race Generator · 👔 Clothing Generator · ⏳ Epoch Generator (historical periods) | | **Fantasy** | ✨ Magical Effect Generator · 🏰 Mythical Location Generator · ⚔️ Artifact Generator (magical items) | | **Sci-Fi** | 🤖 Tech Generator · 👽 Alien World Generator · 🛸 Spacecraft Generator | | **Enhancement** | 😊 Emotion Generator · 🎨 Style Mixer (blend several art styles) · 💫 Prompt Enhancer (details, mood, composition, lighting, colour) · ⛔ Negative Prompt Generator (adjustable strictness) | | **Image** | 🖼️ Image Collage · 📁 Load Images from Directory · 🔒 Censored Part · ⧉ IsulionOverlay (overlays and watermarks) · 🧩 QRCode Generator · 🖼️ Display Image From URL | | **Utilities** | 📝 Custom Text Node · 💾 Prompt Vault Save · 🗃️ Prompt Vault Load · 💤 Isulion Shutdown | | **Civitai** | 🔍 Civitai Model Explorer · 🔥 Civitai Trending · 🖼️ Civitai Image Display | In the node search, the full names start with "Isulion" (e.g. *Isulion Weather Generator*), except 📝 Custom Text Node. ### Notes on some nodes - **📁 Load Images from Directory** loads every image of a folder as a batch. Folders are resolved strictly inside ComfyUI's `input` directory; absolute paths outside it are rejected. - **🖼️ Image Collage** builds a collage from several input images, for collections or mood boards. - **🔒 Censored Part** censors part of an image with blur, pixelate, pixelate + blur, black bar or noise. Pick the area with a painted mask (MaskEditor) or the built-in rectangle widgets; supports mask grow/shrink, invert and edge feathering, and outputs the censor mask for inpainting. - **🖼️ Display Image From URL** downloads an image and shows it in the queue. URL download nodes only accept http(s) and refuse private or internal network addresses. - **💤 Isulion Shutdown** shuts ComfyUI down when a workflow finishes. It does nothing unless the environment variable `ISULION_ENABLE_SHUTDOWN=1` is set. - **🔍 Civitai Explorer / 🔥 Civitai Trending** authenticate with the `CIVITAI_API_TOKEN` environment variable; there is no API key widget, so tokens never end up in shared workflow files. ### 🗃️ Prompt Vault A shared library of named prompt fragments, stored in ComfyUI's user directory (`ComfyUI/user/isulion/prompt_vault.json`) so your entries survive node updates. Until your first save, the example entries from `Core_Nodes/prompt_vault.example.json` are offered. - **💾 Isulion Prompt Vault Save** stores the `text` widget (typed, or connected from any STRING node such as Mega Prompt) under `name`, and passes the text through unchanged so it can go straight on to your encoder. Saving an existing name updates it. - **🗃️ Isulion Prompt Vault Load** picks a stored entry from a dropdown and outputs its text. The vault path can be changed with the `ISULION_PROMPT_VAULT` environment variable. A missing or corrupt vault file gives an empty vault instead of breaking the queue. > **Note:** the load node's dropdown is filled at page load, so newly saved entries appear after a browser refresh (Ctrl+Shift+R). Meanwhile you can type any entry name in the widget: it accepts free text, and the load node re-runs whenever the vault file changes. -------------- ## Example workflows Drag a file from `example_workflows/` onto the ComfyUI canvas: | Workflow | Contents | |---|---| | `Simple_Megaprompt_V4.workflow.json` | Mega Prompt V4 and Space Invaders. No other node pack needed. | | `Simple_Megaprompt_V3.workflow.json` | Mega Prompt V3 and a text display. | | `Full_Flux_Megaprompt_v3.workflow.json` | Mega Prompt V3 driving a full FLUX (GGUF) text-to-image pipeline. | | `Multiple Mega Prompt.json` | Multiple Prompt Generator: one prompt per selected theme. | | `Isulion_Civitai_Nodes_Workflow.json` | Civitai Trending and Civitai Image Display (set `CIVITAI_API_TOKEN`). | | `All_Isulion_Nodes_Workflow.json` | A tour of most nodes of the pack. | Except for the V4 one, these workflows use `ShowText|pysssss` from [ComfyUI-Custom-Scripts](https://github.com/pythongosssss/ComfyUI-Custom-Scripts) to display text. Install that pack, or replace those nodes with any text-display node. The FLUX workflow also needs the GGUF loader nodes and the FLUX models it references. ### Older FLUX examples [More workflows and examples on Civitai](https://civitai.com/articles/8673/discover-the-mega-prompt-generator-for-comfyui) **Basic MegaPrompt (old) workflow** ![IsulionFLUX_00468_](https://github.com/user-attachments/assets/91e7db26-9315-45d3-8461-83f0bba457b1) **Chimera (with Ollama) (old) workflow** ![IsulionFlux_00492_](https://github.com/user-attachments/assets/0e097a70-3821-4440-94d9-589703ab7ad1) **MegaPrompt + Ollama + LoRA (old) workflow** ![IsulionFLUX_00484_](https://github.com/user-attachments/assets/6cbc3ea8-650b-44b3-9a59-a3476a7e513c) [LoRA used for this](https://civitai.com/models/673513/will-smith-flux-dev-lora) The Ollama workflows need the Ollama_generator node in ComfyUI, with the environment variables `OLLAMA_KEEP_ALIVE=0` and `OLLAMA_ORIGINS=*`. -------------- ## Directory structure ``` ComfyUI_Isulion/ ├── __init__.py # node registration, version, WEB_DIRECTORY ├── Core_Nodes/ │ ├── mega_prompt_V3.py # Mega Prompt V3 │ ├── mega_prompt_v4.py # Mega Prompt V4 (machine state, roll, prompt assembly) │ ├── mega_prompt_v4_routes.py # /isulion/megaprompt_v4/* HTTP routes used by the lever │ ├── mega_prompt_all_themes.py # Multiple Prompt Generator │ ├── space_invaders_node.py │ ├── theme_handlers/ # one handler per theme │ ├── configs/ # theme word lists (JSON) and config manager │ ├── animals_nodes/ character_nodes/ scene_nodes/ │ ├── fantasy_nodes/ scifi_nodes/ enhancement_nodes/ │ ├── civitai_nodes/ │ └── … # image and utility nodes (collage, load images, QR code, vault…) ├── web/ # frontend of the interactive nodes │ ├── mega_prompt_v4.js # slot machine widget │ ├── mega_prompt_v4_core.js # pure helpers and EN/FR texts │ └── space_invaders.js ├── example_workflows/ ├── Docs/ # Theme Creation Guide ├── assets/readme/ # README images └── tests/ # Python tests, tests/js for the V4 widget ``` ## Development ```bash python3 tests/run_all.py ``` Runs the whole suite without pytest (it works with pytest too). It also runs the JavaScript tests of the V4 widget, `node tests/js/test_mega_prompt_v4.mjs` (skipped when Node.js is not installed). See [CHANGELOG.md](CHANGELOG.md) for the release history and breaking changes.

💾 Isulion Prompt Vault Save

Inputs (2)

Outputs (1)