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Presenton can send generated image prompts to your own ComfyUI workflow. This supports local or hosted models such as FLUX, Stable Diffusion, and SDXL while keeping the image pipeline under your control.

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Before you start

  • Build and test a text-to-image workflow directly in ComfyUI.
  • Ensure the Presenton container can reach the ComfyUI server.
  • Decide whether to configure the provider in Settings or with environment variables.

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1. Expose ComfyUI to Presenton

Start ComfyUI on an interface reachable from the Presenton container:
The default port is 8188. Restrict network access with a firewall or private container network; an exposed ComfyUI server can run resource-intensive workflows.
localhost inside the Presenton container points to Presenton, not to ComfyUI running on the host.

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2. Mark the prompt node

Presenton must know where to inject each image prompt:
  1. Find the positive text-prompt node in ComfyUI.
  2. Right-click it and choose Title.
  3. Rename it to exactly Input Prompt.
Presenton searches the exported workflow for _meta.title equal to Input Prompt (case-insensitive), then replaces its writable prompt text. A compatible node resembles:

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3. Export the API workflow

  1. Open ComfyUI settings and enable Dev mode Options.
  2. Open File from the ComfyUI menu.
  3. Choose Export (API).
Use the API export, not the normal workflow save. Presenton needs the API node graph.

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4. Configure Presenton

In Settings → Image provider, select ComfyUI, enter the server URL, paste the complete exported workflow JSON, and save. For a managed deployment, set the same values as environment variables:
COMFYUI_WORKFLOW contains the exported JSON itself, not a filesystem path. For Compose, quote or escape the JSON according to your environment-file tooling. The Settings UI is often easier for large workflows.

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5. Test the integration

Generate a short presentation that requests images, then verify:
  • ComfyUI receives a job at /prompt.
  • The Input Prompt node contains the generated prompt.
  • The workflow produces an image output rather than only previews or latent data.
  • Presenton can read the ComfyUI history and download the output.
  • Repeated images use different seeds where supported by the workflow.

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Troubleshooting

Images and web search

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