Concepts
Filters
Blur, sharpen, edges, bloom, kernels and resampling.
Filters look at the pixels around each pixel, so they can blur, find edges or move things around. You'll find them under filter:
| Node | What it does |
|---|---|
| Blur | Gaussian blur; radius is a fraction of the canvas height |
| Zoom Blur | Streaks every pixel towards center |
| Sharpen | Boosts fine detail; amount from 0 (none) to 1 (most) |
| Edges | Highlights edges |
| Bloom | Glows everything brighter than threshold |
| Kernel 3×3 | A custom 3×3 filter, one vec3 of weights per row |
| Resample | Reads anything upstream at another uv, to distort it |
Connect any colour or number, including images, videos and the webcam.
Sizes are relative to the canvas, so a blur looks the same in a small preview and full screen. Very large blurs can look banded.
Inside a Repeat, a filter can't read an image
that changes on each pass, but Resample's uv can change.