Gaussian Blur
A separable gaussian blur with a single Radius control.
The Gaussian Blur node softens the picture evenly in every direction. It runs as two separable passes, so large radii stay cheap.
- One control, Radius, in pixels
- Keeps alpha, so a soft mask stays a soft mask
- Found in the node graph under Post FX → Blur
The image on the right is the example patch itself. Drag and drop it onto the app, or load it with File → Load, to open the full graph. A Caustics field, run through a Gradient Colorizer, at the default radius of 4.
Inputs and outputs
| Port | Type | Purpose |
|---|---|---|
| Input | Texture | The picture to process. |
| Output | Texture | The result. |
Parameters
Opacity, Blend Mode, and Alpha are the standard operator header; see Parameters and Controls.
- Radius (0–64, default 4) — the blur size in pixels of the render resolution. 0 passes the input through.
Every slider has a per-parameter animation bar, so it can be animated, audio driven, or MIDI mapped.
Examples
Glow bed — blur a copy of the source at Radius 40 and add it back with Blend on Screen.
Soft mask — blur a Threshold output before using it as a mask.
Troubleshooting
The blur looks blocky at high radius on a small render — the radius is in render pixels. Raise the resolution, or blur in two stages.