README.md

README.md

@@ -1,38 +1,29 @@
-3. **Restart** or **start** ComfyUI.  
-4. Look under **Nodes → sampling → custom** in ComfyUI’s UI. The **`SigmaGraphNode`** should appear.
+# Sigma Graph Node for ComfyUI
 
-## Usage
+A compact, bidirectional editor for sigma schedules in diffusion sampling.
 
-1. **Add** the Sigma Graph Node to your ComfyUI workflow.  
-2. **Connect** its output (`SIGMAS`) to a sampler that accepts custom sigmas (for example, a KSampler node set to external sigmas).  
-3. **Adjust** the `steps` parameter.  
-4. **Drag** points on the graph or **edit** the sigma values in the text box (comma-separated).  
-- Click the **▼** button to apply text changes to the graph.  
-- The node automatically recalculates your schedule after each drag or text edit.  
-5. **(Optional)** Use the presets to save and load different graph shapes.
+- 📈 Drag points on a graph to shape the schedule
+- ✍️ Edit sigma values in text form (auto-synced)
+- 🔁 Click ▼ to apply text changes to the graph
+- 💾 Save/load custom curve presets
+
+## Installation
+
+1. Copy this folder to: `ComfyUI/custom_nodes/sigma_graph`
+2. Restart ComfyUI
+3. Look for **SigmaGraphNode** under **sampling → custom**
+
+## How to Use
+
+1. Set your desired `steps`
+2. Use the graph or text box to shape the sigma curve
+3. Connect the output (`SIGMAS`) to a sampler that supports external schedules (e.g., KSampler)
+4. (Optional) Use the 💾 button to toggle save mode and store/load your favorite curves
 
 ## File Overview
 
-- **`__init__.py`**  
-Ties this folder into ComfyUI’s extension system. Sets the `WEB_DIRECTORY` to the `js` subfolder so ComfyUI can serve `SigmaGraphWidget.js`.
-
-- **`SigmaGraphNode.py`**  
-Defines the custom node class. Handles:
-- Input parameters: `steps` (int) and `graph_data` (JSON string).
-- Conversion of graph points into a PyTorch tensor of sigmas.
-- The final reversed schedule (since many ComfyUI samplers read sigmas in that order).
-
-- **`SigmaGraphWidget.js`**  
-JavaScript front-end controlling the **interactive graph** and the **bidirectional** text input. It:
-- Registers a custom DOM widget type (`"sigma_graph"`).
-- Draws a canvas for the curve, with points you can drag, double-click, or remove by right-click.
-- Syncs changes to the node’s internal JSON string value (`graph_data`).
-- Updates a live text preview of the sigma schedule and can parse new sigma values from the text.
-
-## Contributing
-
-Feel free to open issues or pull requests if you have improvements or bug fixes!
-
----
-
-**Happy sampling!** Enjoy your interactive sigma graph editor.
+| File                     | Purpose                                              |
+|--------------------------|------------------------------------------------------|
+| `__init__.py`            | Registers the node and loads the front-end widget    |
+| `SigmaGraphNode.py`      | Backend logic: interpolates a sigma tensor schedule  |
+| `js/SigmaGraphWidget.js` | Custom graph widget UI (drag, sync, presets)         |