Ethanfel/ComfyUI-JSON-Dynamic
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Document Preview to Load Image node in README

Browse Source 
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Ethanfel
2026-02-24 12:29:09 +01:00
parent e9ee4db32b
commit 58c53e6229
1 changed files with 26 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
README.md
View File

@@ -7,7 +7,7 @@
<img src="https://img.shields.io/badge/ComfyUI-Custom%20Node-purple" alt="ComfyUI" /> <img src="https://img.shields.io/badge/ComfyUI-Custom%20Node-purple" alt="ComfyUI" />
</p> </p>
A single ComfyUI node that reads any JSON file and **automatically creates output slots** for every key it finds. No hardcoded outputs &mdash; when your JSON structure changes, just click Refresh. A collection of ComfyUI utility nodes: a **dynamic JSON loader** that auto-creates outputs from any JSON file, **string/path helpers**, and a **preview-to-LoadImage bridge** that lets you push generated images (with optional masks) into LoadImage nodes.
## Features ## Features
@@ -164,6 +164,31 @@ Boolean-based selection with built-in default values.
When a connected input (`on_true`/`on_false`) is present it takes priority; otherwise the corresponding `default_*` string widget is used. When a connected input (`on_true`/`on_false`) is present it takes priority; otherwise the corresponding `default_*` string widget is used.
## Image Utility Nodes
### Preview to Load Image (`utils/image`)
Previews an image like the built-in PreviewImage node, but also saves a copy to ComfyUI's `input/` folder so you can push it into any **LoadImage** node with one click.
| Input | Type | Notes |
|:---|:---|:---|
| `images` | IMAGE | Required |
| `filename` | STRING | Name for the saved file (without extension, default `preview`) |
| `mask` | MASK | Optional &mdash; embedded as the PNG alpha channel |
**Widgets (JS-side):**
| Widget | Description |
|:---|:---|
| `load_image_node_id` | ID of the target LoadImage node |
| **Send to Load Image** | Button &mdash; sets the target node's image selector to the saved file |
**How it works:**
1. On execution, the node saves a temp preview (displayed in the node) and a permanent copy to `input/{filename}.png`
2. If a **mask** is connected, it is embedded as the PNG's alpha channel &mdash; LoadImage will automatically output it as its mask
3. Enter the target LoadImage node's ID and click **Send to Load Image** &mdash; the target's image dropdown updates immediately, no restart needed
## License ## License
[Apache 2.0](LICENSE) [Apache 2.0](LICENSE)